tailieukientruc.net

tailieukientruc.net is SSL secured

Free website and domain report on tailieukientruc.net

Last Updated: 21st June, 2021 Update Now
Overview

Snoop Summary for tailieukientruc.net

This is a free and comprehensive report about tailieukientruc.net. The domain tailieukientruc.net is currently hosted on a server located in Ho Chi Minh City, Ho Chi Minh in Vietnam with the IP address 103.221.220.223, where the local currency is VND and Vietnamese is the local language. Tailieukientruc.net has the potential to be earning an estimated $4 USD per day from advertising revenue. If tailieukientruc.net was to be sold it would possibly be worth $2,706 USD (based on the daily revenue potential of the website over a 24 month period). Tailieukientruc.net receives an estimated 1,296 unique visitors every day - a large amount of traffic! This report was last updated 21st June, 2021.

About tailieukientruc.net

Site Preview: tailieukientruc.net tailieukientruc.net
Title: Thư viện Tài liệu kiến trúc, nội thất, thư viện đồ án tốt nghiệp
Description: Trang web thư viện kiến trúc tổng hợp các tài liệu, phần mềm chuyên ngành kiến trúc như: thư viện autocad, thư viện shop, thư viện 3d, thư viện sketup, lumion, revit...
Keywords and Tags: bản vẽ kiến trúc, online shopping, thư viện kiến trúc, tài liệu kiến trúc, đồ án kiến trúc, đồ án tốt nghiệp
Related Terms: an ninh thu do, bao cao su hinh thu, biet thu nha pho, co giao trang thu dam, giao vien, kenh truyen hinh an vien, phim thu ky kim sao the, pho thu taw news, truyen hinh an vien khuyen mai
Fav Icon:
Age: Over 9 years old
Domain Created: 20th April, 2015
Domain Updated: 6th April, 2021
Domain Expires: 20th April, 2022
Review

Snoop Score

2/5

Valuation

$2,706 USD
Note: All valuation figures are estimates.

Popularity

Modest
Note: Popularity is estimated.

Rank, Reach and Authority

Alexa Rank: 654,494
Alexa Reach:
SEMrush Rank (US):
SEMrush Authority Score:
Moz Domain Authority: 0
Moz Page Authority: 0

Organic vs Paid (Google Ads)

Traffic

Visitors

Daily Visitors: 1,296
Monthly Visitors: 39,446
Yearly Visitors: 473,040
Note: All visitors figures are estimates.

Visitors By Country

Revenue

Revenue

Daily Revenue: $4 USD
Monthly Revenue: $112 USD
Yearly Revenue: $1,348 USD
Note: All revenue figures are estimates.

Revenue By Country

SEO

Backlinks Analysis (SEMrush)

Top New Follow Links

Top Ranking Keywords (US)

Domain Analysis

Value Length
Domain: tailieukientruc.net 19
Domain Name: tailieukientruc 15
Extension (TLD): net 3
Expiry Check:

Page Speed Analysis

Average Load Time:
Load Time Comparison:

PageSpeed Insights

Avg. (All Categories) 62
Performance 45
Accessibility 68
Best Practices 60
SEO 91
Progressive Web App 45
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://tailieukientruc.net/
Updated: 21st June, 2021

3.66 seconds
First Contentful Paint (FCP)
52%
13%
35%

0.00 seconds
First Input Delay (FID)
98%
1%
1%

Simulate loading on desktop
45

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for tailieukientruc.net. This includes details about optimizing page load times which can result in a better user experience.

Metrics

First Contentful Paint — 0.6 s
The time taken for the first image or text on the page to be rendered.

Other

First Meaningful Paint — 0.8 s
The time taken for the primary content of the page to be rendered.
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6701.7950001173
6701.9549999386
7875
17546
200
text/javascript
Script
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/client/window_focus_fy2019.js
h2
6706.2220000662
6706.3489998691
2187
2639
200
text/javascript
Script
https://www.googletagservices.com/activeview/js/current/rx_lidar.js?cache=r20110914
h2
6706.4999998547
6706.6100002266
38768
124941
200
text/javascript
Script
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/client/qs_click_protection_fy2019.js
h2
6741.2109998986
6741.3229998201
6509
13220
200
text/javascript
Script
https://www.gstatic.com/mysidia/37c44ba5c7c2e56e86b2dceff03da5e6.js?tag=mysidia_one_click_handler_one_afma_2019
h2
6748.3259998262
6748.476000037
11400
25896
200
text/javascript
Script
https://pagead2.googlesyndication.com/bg/eOgDGfqcQegWjA8qbjqFj-1olP7cUin4sCMz-IjcpPs.js
h2
6802.0310001448
6802.1499998868
6549
14685
200
text/javascript
Script
https://pagead2.googlesyndication.com/getconfig/sodar?sv=200&tid=gda&tv=r20210616&st=env
h2
14511.965000071
14523.630000185
8687
10496
200
application/json
XHR
https://www.youtube.com/iframe_api?rel=0
h2
14516.425999813
14541.52100021
1491
980
200
text/javascript
Script
https://tpc.googlesyndication.com/sodar/sodar2.js
h2
14530.071000103
14535.538000055
6982
17653
200
text/javascript
Script
https://tpc.googlesyndication.com/sodar/sodar2/223/runner.html
h2
14613.131999969
14621.666000225
5641
12775
200
text/html
Document
https://www.google.com/recaptcha/api2/aframe
h2
14615.203000139
14622.450999916
1235
783
200
text/html
Document
https://www.youtube.com/s/player/da9443d1/www-widgetapi.vflset/www-widgetapi.js
h2
14621.520999819
14628.32200015
43412
128889
200
text/javascript
Script
https://pagead2.googlesyndication.com/pagead/sodar?id=sodar2&v=223&li=gda_r20210616&jk=2542416462895596&rc=
h2
14657.984000165
14670.274000149
543
0
204
text/html
Image
https://pagead2.googlesyndication.com/bg/eOgDGfqcQegWjA8qbjqFj-1olP7cUin4sCMz-IjcpPs.js
h2
14670.888999943
14675.116000231
6547
14685
200
text/javascript
Script
https://pagead2.googlesyndication.com/pagead/gen_204?id=sodar2&v=223&t=2&li=gda_r20210616&jk=2542416462895596&bg=!KSqlKm7NAAZktE7iZLQ7ACkAdvg8WuZv0SxmdZ9rNZ3cuuN37Fk70-xLuTzQXs6JyNb6Zk_qkYlT6gIAAADTUgAAABBoAQcKARB40Ze9QtSPd_z6pfXdDwlog_4SmYyN65LsonzlDB4DwyrKRFITOMmA19UAnX7rbUybIN9mJwjoNE0jlRATQ2FfZBGJ1MK_urg7ULY-vPW_rXyCLzE_fiAMXkit5PgQYy1LKYGxZ-QrRBIbG0T8hbqT0p1RGQnlnhllBllEDoOaSY7ZMsfWVh-lr0OHWFnMu-dfHJd0yAGRQRXyphFRF5pYB7CKHnJ9Q3jzFBOFKzBL9kkWGVrKO_1KNjmd4uCB7PDVDtFQCNYMajxPt_QiGXDgwd3SfTEpn65fF5tvTjTs3pq0ZHe2NfxfCAeU3DSamXEtyDxaatikkmUg6eSOgPMyFC7LiyFX-LXFncJ54csiaJkCgfSEVPAzAB7McQobFw1kLrhbCxAyxoe-FIW6X9SFASiiOtP70_rkM9pKyTFB2e7sfMTadiZaqy1vGAJnrggGroZ3CFLXKYXI-nwUs9J_I7FoDdRxNxN_rJSpFWQkZ5pKm1rJFJHMwbPWuDC8xtIwavwv0Q6pj49afZ5M557fIzzd_e0IU8Qk1ol6S93ra0Ofk_G62QqRFZNEANWIU-tWx010km7dCnC168QLpUtCCtoqMJmAgxeBuoUpIjNXj6nLqMo5v8xusRMGzBSiyHMiY4VR90Q0rGTyGkdIkUkAR0yKJcKY3ciwMEaGXkr4wn617AWac7Tmyjr2Y-6WjRUQsl5soegEtHJ2_CmZ8LMI3aXm7e7EB7jqkNGFymkhawNzUHbrzfMdrwbg8xnip5osxra8PaRjhhP9JYcYanq2GVmovZEqziZQ9I6gEgFVkDh2ANe4f5kk-efbb-3xTOwoUnDLxSMOVVWuB4jzveR_R0ZDIUvVBOHwDJcAVEhrgRkDHZ6SDH2zHwMlSlj8FwPlEQIBNuZ9ejNUSZEFuMXF5ffOvysDzlX2mTeFMwufdmGqsnH2QQtSnS6PqkpZRD9prY6VLizMw5M1gdh1iv-BUlTbvSNuvBplB6AWcbk4e7hPF4HI8u4YOd-BZ_zLzKXpwqhxST6pXT7jDh2wj9l81q7lysoHdcOioS_-tIUg6F2t9qFN29uYibGLEdg1-qxkTlyt9hitGpzpsm3kDQa_UY92L3EjjsjMyKDuIyn9BwqdcvwB4sUw8wJnq5qprHt8YJypD2_g2d60HBuT09eVezk2wYNee-w7gSeNTaM19wPyb5yUX5NezFOmXmGX75CkNlr4
h2
14928.791999817
14940.533000045
628
0
204
image/gif
Image
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
2092.437
6.781
2107.95
5.44
3801.005
7.792
4424.034
43.947
4467.993
17.328
4494.158
17.476
4514.924
6.965
4523.28
24.909
4548.224
35.027
4583.268
22.713
4607.65
7.659
4615.359
5.068
4620.611
9.461
4638.351
7.041
4647.317
9.095
4667.911
66.237
4738.734
17.377
4756.931
16.928
4777.904
10.84
4794.856
39.853
4838.341
14.697
4945.935
6.189
5403.517
6.418
5415.156
10.037
5428.218
11.696
5458.569
8.102
5468.382
7.27
5476.103
59.062
5537.228
7.365
5544.653
6.124
5551.503
7.952
5566.653
7.109
5579.138
13.345
5601.102
6.773
5612.781
9.199
5626.718
14.277
5641.106
95.972
5737.109
16.322
5757.588
7.888
5778.948
5.853
5784.813
5.779
5802.874
8.121
5811.033
44.573
5855.97
5.458
5861.861
63.995
5926.003
7.392
5938.07
7.626
5952.723
21.89
5975.107
21.793
6013.049
9.074
6028.492
11.948
6046.81
20.648
6073.988
110.38
6190.42
134.264
6324.922
6.677
6335.526
7.062
6358.317
131.543
6492.906
5.371
6501.756
8.86
6514.347
12.055
6526.44
17.968
6554.064
29.182
6594.066
30.456
6629.519
7.354
6641.095
15.667
6670.374
88.507
6771.041
9.179
6780.251
6.219
6786.998
12.235
6810.455
131.093
7151.049
6.098
7874.566
8.602
9626.437
13.22
9744.218
6.824
10354.727
7.63
10872.064
6.552
11797.449
6.694
12420.486
6.476
13761.978
43.798
14514.909
10.547
14544.238
76.967
14633.177
6.822
14642.824
6.026
14660.173
5.077
14665.755
7.726
14686.372
22.749
14713.004
11.794
14725.811
11.85
14743.292
11.497
14754.851
9.096
14764.754
12.782
14786.106
10.495
14797.99
11.489
14813.337
12.427
14831.154
13.684
14850.24
17.288
14867.588
12.225
14881.288
17.386
14898.736
11.029
14920.325
8.215
14931.13
5.077
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data
Script Treemap Data
Provide as required, for treemap app.

Opportunities

Defer offscreen images — Potential savings of 66 KiB
Time to Interactive can be slowed down by resources on the page. Tailieukientruc.net should consider lazy-loading offscreen and hidden images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://tailieukientruc.net/assets/images/v2/luulaiwebsite.jpg
67640
67640
Minify CSS — Potential savings of 6 KiB
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Tailieukientruc.net should consider minifying CSS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://tailieukientruc.net/assets/tailieuv3/css/base.css
34270
6409
Minify JavaScript — Potential savings of 3 KiB
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Tailieukientruc.net should consider minifying JS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://tailieukientruc.net/assets/tailieuv3/js/base-new.js?v=201907161059
11827
3378
Reduce unused CSS — Potential savings of 51 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Tailieukientruc.net should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://tailieukientruc.net/assets/tailieuv3/css/base.css
34270
32180
https://tailieukientruc.net/assets/tailieuv3/css/iconfont.css?v=201907161059
20197
19827
Efficiently encode images — Potential savings of 54 KiB
Unoptimized images can consume more cellular data than what is necessary.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://tailieukientruc.net/assets/images/v2/luulaiwebsite.jpg
67640
48291
https://tailieukientruc.net/assets/images/home/imgshow-bg.jpg
7350
7060
Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Avoid multiple page redirects — Potential savings of 190 ms
Redirects can cause additional delays before the page can begin loading. Tailieukientruc.net should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://tailieukientruc.net/
190
https://tailieukientruc.net/
0
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Tailieukientruc.net should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
Preload Largest Contentful Paint image
It is recommended to preload images used by LCP elements, to improve LCP time.

Diagnostics

Avoids enormous network payloads — Total size was 2,159 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://tailieukientruc.net/assets/images/index-banner.jpg
197513
https://pagead2.googlesyndication.com/pagead/js/r20210616/r20190131/show_ads_impl_fy2019.js
88875
https://connect.facebook.net/vi_VN/sdk.js?hash=29b1606c96131ecf229e440429b7d26e&ua=modern_es6
75663
https://tailieukientruc.net/assets/images/v2/luulaiwebsite.jpg
68120
https://tailieukientruc.net/assets/tailieuv3/js/jquery-ui.min.js?v=201907161059
63657
https://tailieukientruc.net/images/product/thumbs/0-1607670429_do-an-tot-nghiep-kien-truc-thiet-ke-chung-cu-thuong-mai-hung-vuong.jpg
56021
https://pagead2.googlesyndication.com/pagead/js/r20210616/r20190131/reactive_library_fy2019.js
54759
https://tailieukientruc.net/images/product/thumbs/0-1616997106_thu-vien-mat-bang-photoshop-tong-hop-ve-cac-loai-do-dac-trong-nha-062-download.jpg
53299
https://tailieukientruc.net/images/product/thumbs/0-1611893522_ho-so-thiet-ke-ky-thuat-thi-cong-can-ho-green-valley.jpg
50394
https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js
49647
Avoid chaining critical requests — 19 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Tailieukientruc.net should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
Keep request counts low and transfer sizes small — 144 requests • 2,159 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
144
2211231
Image
46
988759
Script
56
864113
Document
11
165625
Stylesheet
14
91702
Font
6
85317
Other
11
15715
Media
0
0
Third-party
87
1023790
Minimize third-party usage — Third-party code blocked the main thread for 230 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
700215
233.809
91985
0
78883
0
58453
0
47579
0
44903
0
1772
0
0
0
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
div
Avoid large layout shifts — 5 elements found
Below is a list of all DOM elements that contribute to the CLS of the page.
Element CLS Contribution
0.11160313871715
0.085065876456111
0.066621325610438
0.04601502798544
0.043407729574034
Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Avoid long main-thread tasks — 8 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
https://pagead2.googlesyndication.com/bg/eOgDGfqcQegWjA8qbjqFj-1olP7cUin4sCMz-IjcpPs.js
1737
134
https://pagead2.googlesyndication.com/bg/eOgDGfqcQegWjA8qbjqFj-1olP7cUin4sCMz-IjcpPs.js
1477
132
https://pagead2.googlesyndication.com/bg/eOgDGfqcQegWjA8qbjqFj-1olP7cUin4sCMz-IjcpPs.js
225
131
https://pagead2.googlesyndication.com/bg/eOgDGfqcQegWjA8qbjqFj-1olP7cUin4sCMz-IjcpPs.js
1902
110
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/abg_lite_fy2019.js
1630
96
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/abg_lite_fy2019.js
2146
89
https://tpc.googlesyndication.com/sodar/sodar2.js
3230
77
https://www.googletagservices.com/activeview/js/current/rx_lidar.js?cache=r20110914
2012
59
Avoid non-composited animations
It is recommended to avoid non-composited animations which are often janky and increase CLS.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Metrics

Time to Interactive — 2.9 s
The time taken for the page to become fully interactive.
Total Blocking Time — 330 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).

Other

Max Potential First Input Delay — 130 ms
Users could experience a delay when interacting with the page.

Opportunities

Eliminate render-blocking resources — Potential savings of 230 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Tailieukientruc.net should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://tailieukientruc.net/assets/tailieuv3/css/base.css
34270
80
Properly size images — Potential savings of 246 KiB
Images can slow down the page's load time. Tailieukientruc.net should consider serving more appropriate-sized images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://tailieukientruc.net/images/product/thumbs/0-1607670429_do-an-tot-nghiep-kien-truc-thiet-ke-chung-cu-thuong-mai-hung-vuong.jpg
55542
22882
https://tailieukientruc.net/images/product/thumbs/0-1616997106_thu-vien-mat-bang-photoshop-tong-hop-ve-cac-loai-do-dac-trong-nha-062-download.jpg
52820
21716
https://tailieukientruc.net/images/product/thumbs/0-1611893522_ho-so-thiet-ke-ky-thuat-thi-cong-can-ho-green-valley.jpg
49915
20537
https://tailieukientruc.net/assets/tailieuv3/images/clogo.png
22321
17406
https://tailieukientruc.net/images/product/thumbs/0-1607662843_do-an-k5-thiet-ke-chung-cu-nguyen-tu-quang.jpg
40347
16621
https://tailieukientruc.net/images/product/thumbs/0-1611894693_file-sketchup-thiet-ke-chua-noi-an-020.jpg
39529
16271
https://tailieukientruc.net/images/product/thumbs/0-1622858582_thu-vien-autocad-ban-ve-cac-loai-thang-sat-tron-chia-se-boi-toan-dinh.jpg
35382
14576
https://tailieukientruc.net/images/product/thumbs/0-1615969901_ho-so-thiet-ke-ban-ve-biet-thu-3-tang-dien-tich-85x136m-0218-kien-truc-so-bo.jpg
34334
14153
https://tailieukientruc.net/images/product/thumbs/0-1615967062_thu-vien-autocad-ban-ve-thiet-ke-cap-thoat-nuoc-cho-nha-pho-4-tang-mien-phi.jpg
33616
13868
https://tailieukientruc.net/images/product/thumbs/0-1617348979_thu-vien-do-mat-bang-photoshop-tong-the-cong-trinh-063-download.jpg
30286
12494
https://tailieukientruc.net/images/product/thumbs/0-1615972095_ban-ve-sketchup-phoi-canh-3d-nha-hang-karaoke-tan-co-dien-054-download.jpg
30418
12493
https://tailieukientruc.net/assets/tailieuv3/images/footPayment.png
20840
11578
https://tailieukientruc.net/images/product/thumbs/0-1615968178_ban-ve-autocad-ban-ghe-hoc-sinh-mam-non-chuan-theo-gd.jpg
27554
11364
https://tailieukientruc.net/images/product/thumbs/0-1611891537_ho-so-thiet-ke-ban-ve-biet-thu-3-tang-vincom-sai-dong-long-bien-dien-tich-92x126m-0217-kien-truc-so-bo.jpg
26357
10841
https://tailieukientruc.net/images/product/thumbs/0-1615970578_mat-bang-ban-ve-biet-thu-3-tang-dien-tich-83x129m-0219-co-ban.jpg
23132
9500
https://tailieukientruc.net/images/product/thumbs/0-1615971151_bai-giang-thiet-ke-nha-dan-dung-va-cong-nghiep.jpg
20455
8423
https://tailieukientruc.net/images/product/thumbs/0-1615967911_ban-ve-sketchup-ban-trang-diem-co-dien-mien-phi-download.jpg
14881
6133
https://tailieukientruc.net/images/product/thumbs/0-1615969103_ban-ve-autocad-cai-tao-nha-hang-banh-tom-ho-tay.jpg
14272
5851
https://tailieukientruc.net/images/product/thumbs/0-1615968291_ban-ve-sketchup-ban-tho-2-tang-mien-phi-download.jpg
11544
4757
Reduce unused JavaScript — Potential savings of 278 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://tailieukientruc.net/assets/tailieuv3/js/jquery-ui.min.js?v=201907161059
63657
56889
https://connect.facebook.net/vi_VN/sdk.js?hash=29b1606c96131ecf229e440429b7d26e&ua=modern_es6
75663
52945
https://pagead2.googlesyndication.com/pagead/js/r20210616/r20190131/reactive_library_fy2019.js
54759
44597
https://pagead2.googlesyndication.com/pagead/js/r20210616/r20190131/show_ads_impl_fy2019.js
88875
36771
https://www.youtube.com/s/player/da9443d1/www-widgetapi.vflset/www-widgetapi.js
43412
35752
https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js
49647
31529
https://www.google-analytics.com/gtm/js?id=GTM-PJ8J78F&cid=1011333119.1624272674
37585
26073
Serve images in next-gen formats — Potential savings of 349 KiB
Consider JPEG 2000, JPEG XR or WebP image formats which provide better compression than PNG and JPEG.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://tailieukientruc.net/assets/images/index-banner.jpg
197032
75308
https://tailieukientruc.net/assets/images/v2/luulaiwebsite.jpg
67640
55570
https://tailieukientruc.net/images/product/thumbs/0-1616997106_thu-vien-mat-bang-photoshop-tong-hop-ve-cac-loai-do-dac-trong-nha-062-download.jpg
52820
19032
https://tailieukientruc.net/images/product/thumbs/0-1611893522_ho-so-thiet-ke-ky-thuat-thi-cong-can-ho-green-valley.jpg
49915
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55542
17756
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35382
16404
https://tailieukientruc.net/images/product/thumbs/0-1615968178_ban-ve-autocad-ban-ghe-hoc-sinh-mam-non-chuan-theo-gd.jpg
27554
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34334
15022
https://tailieukientruc.net/images/product/thumbs/0-1607662843_do-an-k5-thiet-ke-chung-cu-nguyen-tu-quang.jpg
40347
14701
https://tailieukientruc.net/assets/tailieuv3/images/footPayment.png
20840
13226
https://tailieukientruc.net/images/product/thumbs/0-1611894693_file-sketchup-thiet-ke-chua-noi-an-020.jpg
39529
13033
https://tailieukientruc.net/assets/tailieuv3/images/clogo.png
22321
12005
https://tailieukientruc.net/images/product/thumbs/0-1615971151_bai-giang-thiet-ke-nha-dan-dung-va-cong-nghiep.jpg
20455
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30418
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33616
10414
https://tailieukientruc.net/images/product/thumbs/0-1617348979_thu-vien-do-mat-bang-photoshop-tong-the-cong-trinh-063-download.jpg
30286
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26357
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23132
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25373
8735

Diagnostics

Avoid an excessive DOM size — 969 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
969
Maximum DOM Depth
13
Maximum Child Elements
47
Reduce JavaScript execution time — 1.9 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://www.googletagservices.com/activeview/js/current/osd.js
472.711
448.258
2.555
https://www.googletagservices.com/activeview/js/current/rx_lidar.js?cache=r20110914
468.436
337.469
42.072
Unattributable
224.755
11.695
0.211
https://tpc.googlesyndication.com/sodar/sodar2/223/runner.html
196.473
184.437
2.268
https://googleads.g.doubleclick.net/pagead/ads?client=ca-pub-9158244511857348&output=html&h=600&slotname=1318136914&adk=2626413629&adf=229530924&pi=t.ma~as.1318136914&w=207&fwrn=4&fwrnh=100&lmt=1624272673&rafmt=1&psa=0&format=207x600&url=https%3A%2F%2Ftailieukientruc.net%2F&flash=0&fwr=0&fwrattr=true&rpe=1&resp_fmts=4&wgl=1&uach=WyIiLCIiLCIiLCIiLCIiLFtdXQ..&dt=1624272673775&bpp=3&bdt=2484&idt=201&shv=r20210616&cbv=%2Fr20190131&ptt=9&saldr=aa&abxe=1&prev_fmts=0x0%2C207x600&nras=1&correlator=4625446768318&frm=20&pv=1&ga_vid=1011333119.1624272674&ga_sid=1624272674&ga_hid=1033711191&ga_fc=0&u_tz=-420&u_his=2&u_java=0&u_h=600&u_w=800&u_ah=600&u_aw=800&u_cd=24&u_nplug=0&u_nmime=0&adx=994&ady=837&biw=1350&bih=940&scr_x=0&scr_y=0&eid=44744332%2C31060972&oid=2&pvsid=2542416462895596&pem=798&eae=0&fc=1920&brdim=0%2C0%2C0%2C0%2C800%2C0%2C1%2C1%2C1350%2C940&vis=1&rsz=%7C%7CloeE%7C&abl=CS&pfx=0&fu=128&bc=31&ifi=3&uci=a!3&fsb=1&xpc=uJEX2H36iY&p=https%3A//tailieukientruc.net&dtd=205
190.061
135.676
8.648
https://googleads.g.doubleclick.net/pagead/ads?client=ca-pub-9158244511857348&output=html&h=600&slotname=2192420914&adk=678901213&adf=3060341720&pi=t.ma~as.2192420914&w=207&fwrn=4&fwrnh=100&lmt=1624272673&rafmt=1&psa=0&format=207x600&url=https%3A%2F%2Ftailieukientruc.net%2F&flash=0&fwr=0&fwrattr=true&rpe=1&resp_fmts=4&wgl=1&uach=WyIiLCIiLCIiLCIiLCIiLFtdXQ..&dt=1624272673769&bpp=6&bdt=2478&idt=167&shv=r20210616&cbv=%2Fr20190131&ptt=9&saldr=aa&abxe=1&prev_fmts=0x0&nras=1&correlator=4625446768318&frm=20&pv=1&ga_vid=1011333119.1624272674&ga_sid=1624272674&ga_hid=1033711191&ga_fc=0&u_tz=-420&u_his=2&u_java=0&u_h=600&u_w=800&u_ah=600&u_aw=800&u_cd=24&u_nplug=0&u_nmime=0&adx=540&ady=633&biw=1350&bih=940&scr_x=0&scr_y=0&eid=44744332%2C31060972&oid=2&pvsid=2542416462895596&pem=798&eae=0&fc=1920&brdim=0%2C0%2C0%2C0%2C800%2C0%2C1%2C1%2C1350%2C940&vis=1&rsz=%7C%7CoeE%7C&abl=CS&pfx=0&fu=128&bc=31&ifi=2&uci=a!2&fsb=1&xpc=PV4ZpQAAZj&p=https%3A//tailieukientruc.net&dtd=176
177.958
146.412
8.305
https://pagead2.googlesyndication.com/bg/eOgDGfqcQegWjA8qbjqFj-1olP7cUin4sCMz-IjcpPs.js
168.173
145.654
5.101
https://googleads.g.doubleclick.net/pagead/ads?client=ca-pub-9158244511857348&output=html&h=280&slotname=6771546516&adk=3868486968&adf=2403753330&pi=t.ma~as.6771546516&w=1200&fwrn=4&fwrnh=100&lmt=1624272674&rafmt=1&psa=0&format=1200x280&url=https%3A%2F%2Ftailieukientruc.net%2F&flash=0&fwr=0&rpe=1&resp_fmts=3&wgl=1&uach=WyIiLCIiLCIiLCIiLCIiLFtdXQ..&dt=1624272673814&bpp=3&bdt=2524&idt=222&shv=r20210616&cbv=%2Fr20190131&ptt=9&saldr=aa&abxe=1&cookie=ID%3D94e18de06126881c-2212201bb47a00fb%3AT%3D1624272673%3ART%3D1624272673%3AS%3DALNI_MbCLDH5iTz9mCi_N_1gyiimWKYLGw&prev_fmts=0x0%2C207x600%2C207x600&nras=1&correlator=4625446768318&frm=20&pv=1&ga_vid=1011333119.1624272674&ga_sid=1624272674&ga_hid=1033711191&ga_fc=0&u_tz=-420&u_his=2&u_java=0&u_h=600&u_w=800&u_ah=600&u_aw=800&u_cd=24&u_nplug=0&u_nmime=0&adx=75&ady=1723&biw=1350&bih=940&scr_x=0&scr_y=0&eid=44744332%2C31060972&oid=2&pvsid=2542416462895596&pem=798&eae=0&fc=1920&brdim=0%2C0%2C0%2C0%2C800%2C0%2C1%2C1%2C1350%2C940&vis=1&rsz=%7C%7CeEbr%7C&abl=CS&pfx=0&fu=128&bc=31&ifi=4&uci=a!4&btvi=1&fsb=1&xpc=CgGGnbAe5e&p=https%3A//tailieukientruc.net&dtd=227
164.624
114.645
7.46
https://tailieukientruc.net/
161.335
6.44
2.695
https://pagead2.googlesyndication.com/pagead/js/r20210616/r20190131/show_ads_impl_fy2019.js
125.906
99.719
7.973
https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js
120.857
93.144
20.448
https://tpc.googlesyndication.com/sodar/sodar2.js
83.217
13.986
1.843
https://googleads.g.doubleclick.net/pagead/html/r20210616/r20190131/zrt_lookup.html?fsb=1#RS-0-&adk=1812271808&client=ca-pub-9158244511857348&fa=8&ifi=5&uci=a!5
73.167
24.581
16.997
https://tailieukientruc.net/assets/tailieuv3/js/jquery-1.7.1.min.js?v=201907161059
69.836
55.54
2.55
Minimize main-thread work — 3.1 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
2021.3380000001
Other
392.02299999999
Script Parsing & Compilation
196.028
Garbage Collection
145.089
Style & Layout
125.803
Rendering
97.499
Parse HTML & CSS
93.513

Metrics

Speed Index — 4.4 s
The time taken for the page contents to be visibly populated.
Largest Contentful Paint — 3.1 s
The timing of the largest text or image that is painted.
Cumulative Layout Shift — 0.478
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Opportunities

Reduce initial server response time — Root document took 1,330 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://tailieukientruc.net/
1328.686

Diagnostics

Serve static assets with an efficient cache policy — 74 resources found
Tailieukientruc.net can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://connect.facebook.net/vi_VN/sdk.js
1200000
2595
https://www.google-analytics.com/analytics.js
7200000
20221
https://tailieukientruc.net/assets/images/index-banner.jpg
604800000
197513
https://tailieukientruc.net/assets/images/v2/luulaiwebsite.jpg
604800000
68120
https://tailieukientruc.net/assets/tailieuv3/js/jquery-ui.min.js?v=201907161059
604800000
63657
https://tailieukientruc.net/images/product/thumbs/0-1607670429_do-an-tot-nghiep-kien-truc-thiet-ke-chung-cu-thuong-mai-hung-vuong.jpg
604800000
56021
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604800000
53299
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604800000
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604800000
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604800000
34813
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604800000
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604800000
34095
https://tailieukientruc.net/assets/tailieuv3/js/jquery-1.7.1.min.js?v=201907161059
604800000
33162
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604800000
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604800000
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604800000
25851
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604800000
23611
https://tailieukientruc.net/assets/tailieuv3/images/clogo.png
604800000
22799
https://tailieukientruc.net/assets/tailieuv3/images/footPayment.png
604800000
21318
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604800000
20934
https://tailieukientruc.net/assets/tailieuv3/css/iconfont.css?v=201907161059
604800000
20197
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604800000
15360
https://tailieukientruc.net/images/product/thumbs/0-1615969103_ban-ve-autocad-cai-tao-nha-hang-banh-tom-ho-tay.jpg
604800000
14751
https://tailieukientruc.net/assets/images/v2/lazylogo.gif
604800000
12327
https://tailieukientruc.net/images/product/thumbs/0-1615968291_ban-ve-sketchup-ban-tho-2-tang-mien-phi-download.jpg
604800000
12023
https://tailieukientruc.net/assets/tailieuv3/js/base-new.js?v=201907161059
604800000
11827
https://tailieukientruc.net/assets/tailieuv3/js/slick.min.js?v=201907161069
604800000
10420
https://tailieukientruc.net/images/product/thumbs/0-1615968832_ban-ve-sketchup-ghe-dau-trau-mien-phi-download.jpg
604800000
9182
https://tailieukientruc.net/assets/tailieuv3/js/search_element.js?v=201907161069
604800000
8837
https://tailieukientruc.net/assets/tailieuv3/css/details.css?v=201907161059
604800000
8576
https://tailieukientruc.net/assets/images/home/imgshow-bg.jpg
604800000
7828
https://tailieukientruc.net/assets/tailieuv3/css/jquery-ui.min.css
604800000
7828
https://tailieukientruc.net/assets/tailieuv3/css/subpage.css?v=201907161059
604800000
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https://tailieukientruc.net/assets/images/logo.png
604800000
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https://tailieukientruc.net/assets/tailieuv3/images/nganluong.png
604800000
6156
https://tailieukientruc.net/images/links/_1568777422.png
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https://tailieukientruc.net/images/links/_1568777411.png
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https://tailieukientruc.net/images/links/_1568777489.png
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4565
https://tailieukientruc.net/images/links/_1568777501.png
604800000
4563
https://tailieukientruc.net/assets/tailieuv3/css/index.css?v=2019071610591627
604800000
3841
https://tailieukientruc.net/assets/tailieuv3/js/base-ga.js?v=201907161059
604800000
2757
https://tailieukientruc.net/assets/tailieuv3/css/coupon.css?v=201907161059
604800000
1828
https://tailieukientruc.net/assets/images/copyright.png
604800000
1755
https://tailieukientruc.net/assets/tailieu/popup/jquery.popup.js
604800000
1560
https://tailieukientruc.net/assets/tailieuv3/js/index.js?v=201907161059
604800000
1512
https://tailieukientruc.net/assets/tailieuv3/js/base.js?v=201907161059
604800000
1373
https://tailieukientruc.net/assets/tailieuv3/js/jquery.flex-images.min.js?v=201907161069
604800000
1197
https://tailieukientruc.net/assets/tailieu/popup/qc.css
604800000
944
https://tailieukientruc.net/assets/tailieuv3/css/main.css?v=201907161059
604800000
847
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/elements/html/interstitial_ad_frame_fy2019.js
1209600000
7991
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/abg_lite_fy2019.js
1209600000
7875
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/abg_lite_fy2019.js
1209600000
7875
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/abg_lite_fy2019.js
1209600000
7875
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/abg_lite_fy2019.js
1209600000
7875
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/client/qs_click_protection_fy2019.js
1209600000
6509
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/client/qs_click_protection_fy2019.js
1209600000
6509
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/client/qs_click_protection_fy2019.js
1209600000
6509
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/client/qs_click_protection_fy2019.js
1209600000
6509
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/client/window_focus_fy2019.js
1209600000
2187
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/client/window_focus_fy2019.js
1209600000
2187
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/client/window_focus_fy2019.js
1209600000
2187
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/client/window_focus_fy2019.js
1209600000
2187
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/client/load_preloaded_resource_fy2019.js
1209600000
1684
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/client/load_preloaded_resource_fy2019.js
1209600000
1684
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/client/load_preloaded_resource_fy2019.js
1209600000
1684
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/client/load_preloaded_resource_fy2019.js
1209600000
1684
https://www.gstatic.com/mysidia/37c44ba5c7c2e56e86b2dceff03da5e6.js?tag=mysidia_one_click_handler_one_afma_2019
7776000000
11400
https://www.gstatic.com/mysidia/37c44ba5c7c2e56e86b2dceff03da5e6.js?tag=mysidia_one_click_handler_one_afma_2019
7776000000
11400
https://www.gstatic.com/mysidia/37c44ba5c7c2e56e86b2dceff03da5e6.js?tag=mysidia_one_click_handler_one_afma_2019
7776000000
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https://www.gstatic.com/mysidia/37c44ba5c7c2e56e86b2dceff03da5e6.js?tag=mysidia_one_click_handler_one_afma_2019
7776000000
11400
Ensure text remains visible during webfont load
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
URL Potential Savings (Ms)
https://fonts.gstatic.com/s/roboto/v27/KFOlCnqEu92Fr1MmSU5fBBc4AMP6lQ.woff2
4.0190001018345
https://fonts.gstatic.com/s/roboto/v27/KFOlCnqEu92Fr1MmWUlfBBc4AMP6lQ.woff2
3.0729998834431
https://fonts.gstatic.com/s/googlesans/v27/4UabrENHsxJlGDuGo1OIlLU94YtzCwZsPF4o.woff2
2.6730000972748
https://fonts.gstatic.com/s/googlesans/v27/4UaGrENHsxJlGDuGo1OIlL3Owp5eKQtG.woff2
2.4790000170469
https://fonts.gstatic.com/s/googlesans/v27/4UaGrENHsxJlGDuGo1OIlL3Owp5eKQtG.woff2
0.14800019562244
https://fonts.gstatic.com/s/googlesans/v27/4UabrENHsxJlGDuGo1OIlLU94YtzCwZsPF4o.woff2
0.070999842137098
Avoid `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Source
Image elements do not have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.
URL Failing Elements
https://tailieukientruc.net/assets/tailieuv3/images/clogo.png
img
https://tailieukientruc.net/assets/tailieuv3/images/footPayment.png
img
https://tailieukientruc.net/assets/tailieuv3/images/nganluong.png
img
68

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of tailieukientruc.net. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Heading elements appear in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `tooltip` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
`<object>` elements have `[alt]` text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Tailieukientruc.net may provide assistance to deaf or hearing-impaired users with captions on videos.

ARIA

`[aria-*]` attributes do not match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
Failing Elements

Contrast

Names and labels

`<frame>` or `<iframe>` elements do not have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Failing Elements
Links do not have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.

Internationalization and localization

`<html>` element does not have a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
Failing Elements

Tables and lists

Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
Failing Elements

Best practices

`[user-scalable="no"]` is used in the `<meta name="viewport">` element or the `[maximum-scale]` attribute is less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.
Failing Elements

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
60

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that tailieukientruc.net should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Ensure CSP is effective against XSS attacks
Significantly reduce the risk of cross-site scripting attacks (XSS) by ensuring you have a strong Content Security Policy (CSP).
Description Directive Severity
No CSP found in enforcement mode
High

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Avoids Application Cache
Application cache is deprecated and is no longer recommended.
Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
jQuery
1.9.1
jQuery UI
1.12.1
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
Page has valid source maps
Consider deploying source maps for added benefits such as the ability to debug while in production.
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://tailieukientruc.net/
Allowed
Links to cross-origin destinations are unsafe
Improve performance and prevent security vulnerabilities by adding rel="noopener" and rel="noreferrer" to external links.
Includes front-end JavaScript libraries with known security vulnerabilities — 4 vulnerabilities detected
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Library Version Vulnerability Count Highest Severity
4
Medium

Audits

Page lacks the HTML doctype, thus triggering quirks-mode
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.

Audits

Registers an `unload` listener
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.
Source
Browser errors were logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
Source Description
Access to script at 'https://embed.tawk.to/57873d939afe639c23e9ba87/default' from origin 'https://tailieukientruc.net' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
Failed to load resource: net::ERR_FAILED
Failed to load resource: net::ERR_TIMED_OUT
Failed to load resource: net::ERR_TIMED_OUT
Failed to load resource: net::ERR_TIMED_OUT
Failed to load resource: net::ERR_TIMED_OUT
91

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for tailieukientruc.net. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of tailieukientruc.net on mobile screens.
Document uses legible font sizes
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Tap targets are sized appropriately
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Links have descriptive text
Make use of descriptive link text to assist search engines in understanding the content.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Crawling and Indexing

Links are not crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
45

Progressive Web App

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of tailieukientruc.net. This includes details about web app manifests.

PWA Optimized

Redirects HTTP traffic to HTTPS
It is advised to redirect all HTTP traffic to HTTPS, in order to enable secure web features for all users.
Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of tailieukientruc.net on mobile screens.
Provides a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.

Installable

Web app manifest or service worker do not meet the installability requirements — 1 reason
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
Failure reason
No manifest was fetched

PWA Optimized

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Avg. (All Categories) 57
Performance 17
Accessibility 68
Best Practices 60
SEO 91
Progressive Web App 50
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://tailieukientruc.net/
Updated: 21st June, 2021
Simulate loading on mobile
17

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for tailieukientruc.net. This includes details about optimizing page load times which can result in a better user experience.

Opportunities

Properly size images
Images can slow down the page's load time. Tailieukientruc.net should consider serving more appropriate-sized images.
Defer offscreen images — Potential savings of 88 KiB
Time to Interactive can be slowed down by resources on the page. Tailieukientruc.net should consider lazy-loading offscreen and hidden images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://tailieukientruc.net/assets/images/v2/luulaiwebsite.jpg
67640
67640
https://tailieukientruc.net/assets/tailieuv3/images/clogo.png
22321
22321
Minify CSS — Potential savings of 6 KiB
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Tailieukientruc.net should consider minifying CSS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://tailieukientruc.net/assets/tailieuv3/css/base.css
34270
6409
Minify JavaScript — Potential savings of 3 KiB
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Tailieukientruc.net should consider minifying JS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://tailieukientruc.net/assets/tailieuv3/js/base-new.js?v=201907161059
11827
3378
Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Initial server response time was short — Root document took 540 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://tailieukientruc.net/
538.058
Avoid multiple page redirects — Potential savings of 630 ms
Redirects can cause additional delays before the page can begin loading. Tailieukientruc.net should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://tailieukientruc.net/
630
https://tailieukientruc.net/
0
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Tailieukientruc.net should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
Preload Largest Contentful Paint image
It is recommended to preload images used by LCP elements, to improve LCP time.
URL Potential Savings (Ms)
https://tailieukientruc.net/images/product/thumbs/0-1616997106_thu-vien-mat-bang-photoshop-tong-hop-ve-cac-loai-do-dac-trong-nha-062-download.jpg
0

Diagnostics

Avoids enormous network payloads — Total size was 2,235 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://pagead2.googlesyndication.com/pagead/js/r20210616/r20190131/show_ads_impl_fy2019.js
88875
https://connect.facebook.net/vi_VN/sdk.js?hash=524e190aef8d6426ddcde85c823883f8&ua=modern_es6
75421
https://tailieukientruc.net/assets/images/v2/luulaiwebsite.jpg
68120
https://tailieukientruc.net/assets/tailieuv3/js/jquery-ui.min.js?v=201907161059
63657
https://tailieukientruc.net/images/product/thumbs/0-1607670429_do-an-tot-nghiep-kien-truc-thiet-ke-chung-cu-thuong-mai-hung-vuong.jpg
56021
https://pagead2.googlesyndication.com/pagead/js/r20210616/r20190131/reactive_library_fy2019.js
54759
https://tailieukientruc.net/images/product/thumbs/0-1616997106_thu-vien-mat-bang-photoshop-tong-hop-ve-cac-loai-do-dac-trong-nha-062-download.jpg
53299
https://tailieukientruc.net/images/product/thumbs/0-1611893522_ho-so-thiet-ke-ky-thuat-thi-cong-can-ho-green-valley.jpg
50394
https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js
49647
https://www.youtube.com/s/player/da9443d1/www-widgetapi.vflset/www-widgetapi.js
43412
Avoid chaining critical requests — 19 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Tailieukientruc.net should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
Keep request counts low and transfer sizes small — 228 requests • 2,235 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
228
2288234
Script
64
934274
Image
59
899426
Document
17
179257
Font
10
124895
Stylesheet
15
93368
Other
63
57014
Media
0
0
Third-party
172
1231778
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
Avoid large layout shifts — 5 elements found
Below is a list of all DOM elements that contribute to the CLS of the page.
Element CLS Contribution
0.042846492296336
0.038765539320366
0.038750273635983
0.03078789865605
0.026169713857642
Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Avoid long main-thread tasks — 20 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
https://pagead2.googlesyndication.com/bg/eOgDGfqcQegWjA8qbjqFj-1olP7cUin4sCMz-IjcpPs.js
8711
614
https://pagead2.googlesyndication.com/bg/eOgDGfqcQegWjA8qbjqFj-1olP7cUin4sCMz-IjcpPs.js
6064
603
https://pagead2.googlesyndication.com/bg/eOgDGfqcQegWjA8qbjqFj-1olP7cUin4sCMz-IjcpPs.js
6911
515
https://pagead2.googlesyndication.com/bg/eOgDGfqcQegWjA8qbjqFj-1olP7cUin4sCMz-IjcpPs.js
697
488
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/abg_lite_fy2019.js
7868
367
https://pagead2.googlesyndication.com/pagead/js/r20210616/r20190131/show_ads_impl_fy2019.js
3831
269
https://www.googletagservices.com/activeview/js/current/rx_lidar.js?cache=r20110914
8451
239
https://tailieukientruc.net/assets/tailieuv3/js/base.js?v=201907161059
4100
225
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/abg_lite_fy2019.js
5871
193
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/abg_lite_fy2019.js
6719
192
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/abg_lite_fy2019.js
10841
182
https://www.googletagservices.com/activeview/js/current/osd.js
5630
178
https://www.googletagservices.com/activeview/js/current/osd.js
7426
170
https://googleads.g.doubleclick.net/pagead/html/r20210616/r20190131/zrt_lookup.html?fsb=1#RS-0-&adk=1812271808&client=ca-pub-9158244511857348&fa=8&ifi=5&uci=a!5
8292
159
https://www.gstatic.com/mysidia/afa1a606d0d7a772eeea1c1d0301df54.js?tag=exit_2019
13572
148
https://tailieukientruc.net/assets/tailieuv3/js/slick.min.js?v=201907161069
16560
138
https://pagead2.googlesyndication.com/pagead/js/r20210616/r20190131/reactive_library_fy2019.js
10055
120
https://pagead2.googlesyndication.com/bg/eOgDGfqcQegWjA8qbjqFj-1olP7cUin4sCMz-IjcpPs.js
18057
100
https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js
2533
98
https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js
2631
97
Avoid non-composited animations
It is recommended to avoid non-composited animations which are often janky and increase CLS.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Other

Network Requests
Below is a list of network requests that were made during page load.
URL Protocol Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://tailieukientruc.net/
http/1.1
0
244.61699998938
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Image
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
794.003
8.001
806.178
5.836
812.114
5.581
1304.281
7.685
1763.511
56.263
1819.79
6.168
1830.491
23.942
1861.752
8.02
1871.297
28.775
1902.189
12.231
1916.544
49.002
1965.566
24.336
1989.913
8.942
1998.906
9.73
2014.859
5.739
2022.252
7.026
2041.558
20.885
2068.63
5.929
2074.899
67.174
2148.612
20.337
2172.865
11.991
2186.877
44.38
2233.925
18.924
2259.205
68.797
2337.638
8.973
2351.551
7.471
2359.256
7.7
2367.859
5.551
2375.695
9.462
2454.508
9.558
2585.715
8.003
2604.773
18.057
2629.68
47.443
2692.276
29.922
2732.328
8.401
2746.044
14.333
2775.604
39.794
2815.463
10.23
2829.49
9.726
2849.372
6.88
2860.299
59.727
2929.757
7.188
2936.96
14.475
2957.67
7.317
2977.805
16.726
3001.091
11.999
3013.241
8.09
3021.389
121.978
3143.44
10.657
3155.993
91.701
3252.203
8.085
3276.497
7.661
3284.177
11.778
3299.819
7.655
3320.617
10.856
3335.604
10.008
3345.656
48.247
3395.051
8.674
3405.457
10.681
3418.933
7.017
3437.315
47.902
3487.776
5.259
3504.409
21.025
3527.946
7.047
3544.465
5.083
3561.905
153.624
3720.924
7.304
3732.491
18.898
3751.54
6.817
3767.056
91.098
3858.363
150.787
4011.688
7.747
4029.486
128.67
4161.877
7.892
4170.195
5.908
4687.414
8.28
5208.151
5.288
5313.359
6.412
6662.101
11.979
6964.95
12.94
7696.59
7.116
8112.468
6.958
9147.702
6.071
9770.384
7.305
11111.84
42.404
11797.558
39.604
11854.613
9.506
11871.18
7.857
11880.924
6.77
11899.475
9.364
11929.793
24.876
11957.812
12.14
11970.044
11.994
11982.106
11.644
12000.381
5.731
12009.86
12.658
12026.439
10.97
12038.443
11.729
12051.129
11.859
12066.789
14.426
12082.198
11.462
12093.68
6.097
12099.822
13.012
12118.645
15.639
12135.472
11.395
12166.77
5.763
12421.58
7.419
12620.91
7.419
12649.855
7.87
12659.138
12.421
12671.688
74.131
12756.269
8.132
12790.156
6.948
12797.126
9.948
12847.981
12.6
13398.296
13.727
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data
Script Treemap Data
Provide as required, for treemap app.

Metrics

First Contentful Paint — 2.5 s
The time taken for the first image or text on the page to be rendered.

Other

First Meaningful Paint — 2.5 s
The time taken for the primary content of the page to be rendered.

Opportunities

Reduce unused CSS — Potential savings of 51 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Tailieukientruc.net should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://tailieukientruc.net/assets/tailieuv3/css/base.css
34270
32434
https://tailieukientruc.net/assets/tailieuv3/css/iconfont.css?v=201907161059
20197
19978
Efficiently encode images — Potential savings of 47 KiB
Unoptimized images can consume more cellular data than what is necessary.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://tailieukientruc.net/assets/images/v2/luulaiwebsite.jpg
67640
48291

Diagnostics

Avoid an excessive DOM size — 975 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
975
Maximum DOM Depth
13
Maximum Child Elements
47

Metrics

Speed Index — 8.5 s
The time taken for the page contents to be visibly populated.
Largest Contentful Paint — 7.4 s
The timing of the largest text or image that is painted.
Time to Interactive — 15.5 s
The time taken for the page to become fully interactive.
Total Blocking Time — 3,690 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).
Cumulative Layout Shift — 0.305
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Other

Max Potential First Input Delay — 610 ms
Users could experience a delay when interacting with the page.
First Contentful Paint (3G) — 5085 ms
The time taken for the first image or text on the page to be rendered while on a 3G network.

Opportunities

Eliminate render-blocking resources — Potential savings of 1,240 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Tailieukientruc.net should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://tailieukientruc.net/assets/tailieuv3/css/base.css
34270
300
https://tailieukientruc.net/assets/tailieuv3/css/iconfont.css?v=201907161059
20197
150
https://tailieukientruc.net/assets/tailieuv3/css/coupon.css?v=201907161059
1828
150
https://tailieukientruc.net/assets/tailieuv3/js/jquery-1.7.1.min.js?v=201907161059
33162
150
https://tailieukientruc.net/assets/tailieuv3/js/jquery-ui.min.js?v=201907161059
63657
300
Reduce unused JavaScript — Potential savings of 274 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://tailieukientruc.net/assets/tailieuv3/js/jquery-ui.min.js?v=201907161059
63657
56889
https://connect.facebook.net/vi_VN/sdk.js?hash=524e190aef8d6426ddcde85c823883f8&ua=modern_es6
75421
52807
https://pagead2.googlesyndication.com/pagead/js/r20210616/r20190131/reactive_library_fy2019.js
54759
44620
https://www.youtube.com/s/player/da9443d1/www-widgetapi.vflset/www-widgetapi.js
43412
35752
https://pagead2.googlesyndication.com/pagead/js/r20210616/r20190131/show_ads_impl_fy2019.js
88875
32613
https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js
49647
31327
https://www.google-analytics.com/gtm/js?id=GTM-PJ8J78F&cid=342045344.1624272717
37585
26073
Serve images in next-gen formats — Potential savings of 297 KiB
Consider JPEG 2000, JPEG XR or WebP image formats which provide better compression than PNG and JPEG.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://tailieukientruc.net/assets/images/v2/luulaiwebsite.jpg
67640
55570
https://tailieukientruc.net/images/product/thumbs/0-1616997106_thu-vien-mat-bang-photoshop-tong-hop-ve-cac-loai-do-dac-trong-nha-062-download.jpg
52820
19032
https://tailieukientruc.net/images/product/thumbs/0-1611893522_ho-so-thiet-ke-ky-thuat-thi-cong-can-ho-green-valley.jpg
49915
18807
https://tailieukientruc.net/images/product/thumbs/0-1607670429_do-an-tot-nghiep-kien-truc-thiet-ke-chung-cu-thuong-mai-hung-vuong.jpg
55542
17756
https://tailieukientruc.net/images/product/thumbs/0-1622858582_thu-vien-autocad-ban-ve-cac-loai-thang-sat-tron-chia-se-boi-toan-dinh.jpg
35382
16404
https://tailieukientruc.net/images/product/thumbs/0-1615968178_ban-ve-autocad-ban-ghe-hoc-sinh-mam-non-chuan-theo-gd.jpg
27554
15224
https://tailieukientruc.net/images/product/thumbs/0-1615969901_ho-so-thiet-ke-ban-ve-biet-thu-3-tang-dien-tich-85x136m-0218-kien-truc-so-bo.jpg
34334
15022
https://tailieukientruc.net/images/product/thumbs/0-1607662843_do-an-k5-thiet-ke-chung-cu-nguyen-tu-quang.jpg
40347
14701
https://tailieukientruc.net/images/product/thumbs/0-1607677566_ho-so-ban-ve-revit-thiet-ke-kho-bac-nha-nuoc-094-download.jpg
35137
13891
https://tailieukientruc.net/assets/tailieuv3/images/footPayment.png
20840
13226
https://tailieukientruc.net/images/product/thumbs/0-1611894693_file-sketchup-thiet-ke-chua-noi-an-020.jpg
39529
13033
https://tailieukientruc.net/assets/tailieuv3/images/clogo.png
22321
12005
https://tailieukientruc.net/images/product/thumbs/0-1615971151_bai-giang-thiet-ke-nha-dan-dung-va-cong-nghiep.jpg
20455
11367
https://tailieukientruc.net/images/product/thumbs/0-1615972095_ban-ve-sketchup-phoi-canh-3d-nha-hang-karaoke-tan-co-dien-054-download.jpg
30418
10834
https://tailieukientruc.net/images/product/thumbs/0-1615967062_thu-vien-autocad-ban-ve-thiet-ke-cap-thoat-nuoc-cho-nha-pho-4-tang-mien-phi.jpg
33616
10414
https://tailieukientruc.net/images/product/thumbs/0-1617348979_thu-vien-do-mat-bang-photoshop-tong-the-cong-trinh-063-download.jpg
30286
10264
https://tailieukientruc.net/images/product/thumbs/0-1611891537_ho-so-thiet-ke-ban-ve-biet-thu-3-tang-vincom-sai-dong-long-bien-dien-tich-92x126m-0217-kien-truc-so-bo.jpg
26357
9785
https://tailieukientruc.net/images/product/thumbs/0-1615970578_mat-bang-ban-ve-biet-thu-3-tang-dien-tich-83x129m-0219-co-ban.jpg
23132
9588
https://tailieukientruc.net/assets/images/v2/pngtreev2.png
25373
8735
https://tailieukientruc.net/images/product/thumbs/0-1607676105_ho-so-ban-ve-revit-nha-pho-kinh-doanh-2-mat-tien-3-tang-5x20m-093-download.jpg
25184
8450

Diagnostics

Serve static assets with an efficient cache policy — 81 resources found
Tailieukientruc.net can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://connect.facebook.net/vi_VN/sdk.js
1200000
2925
https://www.google-analytics.com/analytics.js
7200000
20221
https://tailieukientruc.net/assets/images/v2/luulaiwebsite.jpg
604800000
68120
https://tailieukientruc.net/assets/tailieuv3/js/jquery-ui.min.js?v=201907161059
604800000
63657
https://tailieukientruc.net/images/product/thumbs/0-1607670429_do-an-tot-nghiep-kien-truc-thiet-ke-chung-cu-thuong-mai-hung-vuong.jpg
604800000
56021
https://tailieukientruc.net/images/product/thumbs/0-1616997106_thu-vien-mat-bang-photoshop-tong-hop-ve-cac-loai-do-dac-trong-nha-062-download.jpg
604800000
53299
https://tailieukientruc.net/images/product/thumbs/0-1611893522_ho-so-thiet-ke-ky-thuat-thi-cong-can-ho-green-valley.jpg
604800000
50394
https://tailieukientruc.net/images/product/thumbs/0-1607662843_do-an-k5-thiet-ke-chung-cu-nguyen-tu-quang.jpg
604800000
40826
https://tailieukientruc.net/images/product/thumbs/0-1611894693_file-sketchup-thiet-ke-chua-noi-an-020.jpg
604800000
40008
https://tailieukientruc.net/images/product/thumbs/0-1622858582_thu-vien-autocad-ban-ve-cac-loai-thang-sat-tron-chia-se-boi-toan-dinh.jpg
604800000
35861
https://tailieukientruc.net/images/product/thumbs/0-1607677566_ho-so-ban-ve-revit-thiet-ke-kho-bac-nha-nuoc-094-download.jpg
604800000
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604800000
34813
https://tailieukientruc.net/assets/tailieuv3/css/base.css
604800000
34270
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604800000
34095
https://tailieukientruc.net/assets/tailieuv3/js/jquery-1.7.1.min.js?v=201907161059
604800000
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604800000
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604800000
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604800000
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604800000
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https://tailieukientruc.net/assets/images/v2/pngtreev2.png
604800000
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604800000
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604800000
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https://tailieukientruc.net/assets/tailieuv3/images/clogo.png
604800000
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604800000
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604800000
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604800000
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604800000
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604800000
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604800000
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https://tailieukientruc.net/assets/images/v2/lazylogo.gif
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604800000
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https://tailieukientruc.net/assets/tailieuv3/js/base-new.js?v=201907161059
604800000
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604800000
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604800000
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https://tailieukientruc.net/assets/tailieuv3/js/search_element.js?v=201907161069
604800000
8837
https://tailieukientruc.net/assets/tailieuv3/css/details.css?v=201907161059
604800000
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https://tpc.googlesyndication.com/daca_images/simgad/13220510217990957527?w=195&h=102
604800000
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https://tailieukientruc.net/assets/tailieuv3/css/jquery-ui.min.css
604800000
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https://tailieukientruc.net/images/links/_1568777495.png
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604800000
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604800000
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604800000
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604800000
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604800000
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https://tailieukientruc.net/assets/tailieu/popup/jquery.popup.js
604800000
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604800000
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604800000
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604800000
944
https://tailieukientruc.net/assets/tailieuv3/css/main.css?v=201907161059
604800000
847
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/elements/html/interstitial_ad_frame_fy2019.js
1209600000
7991
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/abg_lite_fy2019.js
1209600000
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1209600000
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1209600000
7875
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/abg_lite_fy2019.js
1209600000
7875
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/abg_lite_fy2019.js
1209600000
7875
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/client/qs_click_protection_fy2019.js
1209600000
6509
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/client/qs_click_protection_fy2019.js
1209600000
6509
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/client/qs_click_protection_fy2019.js
1209600000
6509
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/client/qs_click_protection_fy2019.js
1209600000
6509
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/client/qs_click_protection_fy2019.js
1209600000
6509
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/client/window_focus_fy2019.js
1209600000
2188
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/client/window_focus_fy2019.js
1209600000
2187
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/client/window_focus_fy2019.js
1209600000
2187
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/client/window_focus_fy2019.js
1209600000
2187
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/client/window_focus_fy2019.js
1209600000
2187
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/client/load_preloaded_resource_fy2019.js
1209600000
1684
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/client/load_preloaded_resource_fy2019.js
1209600000
1684
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/client/load_preloaded_resource_fy2019.js
1209600000
1684
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/client/load_preloaded_resource_fy2019.js
1209600000
1684
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/client/load_preloaded_resource_fy2019.js
1209600000
1684
https://www.gstatic.com/mysidia/37c44ba5c7c2e56e86b2dceff03da5e6.js?tag=mysidia_one_click_handler_one_afma_2019
7776000000
11400
https://www.gstatic.com/mysidia/37c44ba5c7c2e56e86b2dceff03da5e6.js?tag=mysidia_one_click_handler_one_afma_2019
7776000000
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https://www.gstatic.com/mysidia/37c44ba5c7c2e56e86b2dceff03da5e6.js?tag=mysidia_one_click_handler_one_afma_2019
7776000000
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https://www.gstatic.com/mysidia/37c44ba5c7c2e56e86b2dceff03da5e6.js?tag=mysidia_one_click_handler_one_afma_2019
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https://www.gstatic.com/mysidia/afa1a606d0d7a772eeea1c1d0301df54.js?tag=exit_2019
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https://www.gstatic.com/mysidia/4cbc39ee0e9d095c6969aee3f70563d2.js?tag=client_fast_engine_2019
7776000000
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Reduce JavaScript execution time — 9.9 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://www.googletagservices.com/activeview/js/current/rx_lidar.js?cache=r20110914
2209.976
1643.08
113.94
https://www.googletagservices.com/activeview/js/current/osd.js
2170.388
2057.428
12.22
Unattributable
1288.84
51.796
0.728
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808.296
616.82
30.82
https://googleads.g.doubleclick.net/pagead/ads?client=ca-pub-9158244511857348&output=html&h=300&slotname=6771546516&adk=1196528183&adf=2403753330&pi=t.ma~as.6771546516&w=360&lmt=1624272716&rafmt=1&psa=0&format=360x300&url=https%3A%2F%2Ftailieukientruc.net%2F&flash=0&fwr=1&rpe=1&resp_fmts=3&sfro=1&wgl=1&uach=WyIiLCIiLCIiLCIiLCIiLFtdXQ..&dt=1624272716717&bpp=5&bdt=1163&idt=277&shv=r20210616&cbv=%2Fr20190131&ptt=9&saldr=aa&abxe=1&cookie=ID%3Dcf6a61a51a6de662-229b57afb37a0062%3AT%3D1624272716%3ART%3D1624272716%3AS%3DALNI_Mbp3ZIzy1x64dTXAVf6OHxY_bd8pA&prev_fmts=0x0%2C141x125%2C141x125&nras=1&correlator=7637156348758&frm=20&pv=1&ga_vid=342045344.1624272717&ga_sid=1624272717&ga_hid=543005697&ga_fc=0&u_tz=-420&u_his=2&u_java=0&u_h=640&u_w=360&u_ah=640&u_aw=360&u_cd=24&u_nplug=0&u_nmime=0&adx=0&ady=1138&biw=360&bih=640&scr_x=0&scr_y=0&eid=31060005&oid=3&pvsid=2894754989642833&pem=842&eae=0&fc=1920&brdim=0%2C0%2C0%2C0%2C360%2C0%2C360%2C640%2C360%2C640&vis=1&rsz=%7C%7CeEbr%7C&abl=CS&pfx=0&fu=128&bc=31&ifi=4&uci=a!4&btvi=2&fsb=1&xpc=j6gv9cLRZy&p=https%3A//tailieukientruc.net&dtd=284
788.456
572.536
32.008
https://tpc.googlesyndication.com/sodar/sodar2/223/runner.html
736.76
682.036
10.828
https://tailieukientruc.net/
693.772
22.996
13.204
https://pagead2.googlesyndication.com/pagead/js/r20210616/r20190131/show_ads_impl_fy2019.js
686.44
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27.464
https://pagead2.googlesyndication.com/bg/eOgDGfqcQegWjA8qbjqFj-1olP7cUin4sCMz-IjcpPs.js
644.756
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https://googleads.g.doubleclick.net/pagead/ads?client=ca-pub-9158244511857348&output=html&h=125&slotname=1318136914&adk=1500593792&adf=229530924&pi=t.ma~as.1318136914&w=141&fwrn=6&fwrnh=100&lmt=1624272716&rafmt=1&psa=0&format=141x125&url=https%3A%2F%2Ftailieukientruc.net%2F&flash=0&fwr=0&fwrattr=true&rpe=1&resp_fmts=3&sfro=1&wgl=1&uach=WyIiLCIiLCIiLCIiLCIiLFtdXQ..&dt=1624272716713&bpp=4&bdt=1159&idt=220&shv=r20210616&cbv=%2Fr20190131&ptt=9&saldr=aa&abxe=1&prev_fmts=0x0%2C141x125&nras=1&correlator=7637156348758&frm=20&pv=1&ga_vid=342045344.1624272717&ga_sid=1624272717&ga_hid=543005697&ga_fc=0&u_tz=-420&u_his=2&u_java=0&u_h=640&u_w=360&u_ah=640&u_aw=360&u_cd=24&u_nplug=0&u_nmime=0&adx=197&ady=692&biw=360&bih=640&scr_x=0&scr_y=0&eid=31060005&oid=3&pvsid=2894754989642833&pem=842&eae=0&fc=1920&brdim=0%2C0%2C0%2C0%2C360%2C0%2C360%2C640%2C360%2C640&vis=1&rsz=%7C%7CloeEbr%7C&abl=CS&pfx=0&fu=128&bc=31&ifi=3&uci=a!3&btvi=1&fsb=1&xpc=Qqu9QdlnrE&p=https%3A//tailieukientruc.net&dtd=226
637.504
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https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js
576.652
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https://googleads.g.doubleclick.net/pagead/drt/s?v=r20120211
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https://tailieukientruc.net/assets/tailieuv3/js/jquery-1.7.1.min.js?v=201907161059
293.2
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https://googleads.g.doubleclick.net/pagead/ads?client=ca-pub-9158244511857348&output=html&h=788&adk=643203274&adf=2647056153&w=360&lmt=1624272726&ecr=1&rafmt=9&pwprc=3789767174&psa=1&format=360x788&url=https%3A%2F%2Ftailieukientruc.net%2F&flash=0&crui=pedestal&fwr=1&fwrattr=1&pra=3&rw=360&wgl=1&fa=30&uach=WyIiLCIiLCIiLCIiLCIiLFtdXQ..&dt=1624272726571&bpp=3&bdt=11017&idt=3&shv=r20210616&cbv=%2Fr20190131&ptt=9&saldr=aa&abxe=1&cookie=ID%3Dcf6a61a51a6de662-229b57afb37a0062%3AT%3D1624272716%3ART%3D1624272716%3AS%3DALNI_Mbp3ZIzy1x64dTXAVf6OHxY_bd8pA&prev_fmts=0x0%2C141x125%2C141x125%2C360x300%2C360x640&nras=3&correlator=7637156348758&frm=20&pv=1&ga_vid=342045344.1624272717&ga_sid=1624272717&ga_hid=543005697&ga_fc=0&u_tz=-420&u_his=2&u_java=0&u_h=640&u_w=360&u_ah=640&u_aw=360&u_cd=24&u_nplug=0&u_nmime=0&adx=0&ady=2262&biw=360&bih=640&scr_x=0&scr_y=0&eid=31060005&oid=3&psts=AGkb-H8acdM-y684oqIqsVJYKIP8m4EwSTkEQEFgSQ7vBR4nleywF_1oGcD92-tQZT9V8Tc4wSKauh1inA%2CAGkb-H-t4ilyTz9VeRXfweL8V9UIMeRy9c1jVD_hvOwpTpXUXsz_tCMDlr5HAEpz8V3VFrT36cIXzgSSO-A%2CAGkb-H_ndP9vXLXy6M1SJWdvjB2LHLD0mOVMVPm9GPQ3lpvTZRx6HPMuB6RSRezGgGJUWwzWOIxorszcgQI&pvsid=2894754989642833&pem=842&eae=0&fc=1920&brdim=0%2C0%2C0%2C0%2C360%2C0%2C360%2C640%2C360%2C640&vis=1&rsz=%7C%7Cs%7C&abl=NS&fu=128&bc=31&ifi=6&uci=a!6&btvi=3&fsb=1&xpc=Wo9iFfV3md&p=https%3A//tailieukientruc.net&dtd=10
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https://googleads.g.doubleclick.net/pagead/drt/si
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25.94
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/client/qs_click_protection_fy2019.js
186.216
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https://googleads.g.doubleclick.net/pagead/html/r20210616/r20190131/zrt_lookup.html?fsb=1
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https://www.google-analytics.com/analytics.js
130.756
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https://pagead2.googlesyndication.com/pagead/js/r20210616/r20190131/reactive_library_fy2019.js
122.792
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16.516
https://googleads.g.doubleclick.net/pagead/ads?client=ca-pub-9158244511857348&output=html&adk=1812271804&adf=3025194257&lmt=1624272716&plat=2%3A16777216%2C16%3A8388608%2C17%3A32%2C24%3A32%2C25%3A32%2C32%3A32&format=0x0&url=https%3A%2F%2Ftailieukientruc.net%2F&ea=0&flash=0&pra=5&wgl=1&uach=WyIiLCIiLCIiLCIiLCIiLFtdXQ..&dt=1624272716700&bpp=6&bdt=1145&idt=150&shv=r20210616&cbv=%2Fr20190131&ptt=9&saldr=aa&abxe=1&nras=1&correlator=7637156348758&frm=20&pv=2&ga_vid=342045344.1624272717&ga_sid=1624272717&ga_hid=543005697&ga_fc=0&u_tz=-420&u_his=2&u_java=0&u_h=640&u_w=360&u_ah=640&u_aw=360&u_cd=24&u_nplug=0&u_nmime=0&adx=-12245933&ady=-12245933&biw=360&bih=640&scr_x=0&scr_y=0&eid=31060005&oid=3&pvsid=2894754989642833&pem=842&eae=2&fc=1920&brdim=0%2C0%2C0%2C0%2C360%2C0%2C360%2C640%2C360%2C640&vis=1&rsz=%7C%7Cs%7C&abl=NS&fu=32768&bc=31&ifi=1&uci=a!1&fsb=1&dtd=186
113.624
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36.04
https://tailieukientruc.net/assets/tailieuv3/js/jquery-ui.min.js?v=201907161059
99.732
80.06
19.408
https://tpc.googlesyndication.com/pagead/js/r20210616/r20110914/abg_lite_fy2019.js
99.324
63.244
29.328
https://www.gstatic.com/mysidia/37c44ba5c7c2e56e86b2dceff03da5e6.js?tag=mysidia_one_click_handler_one_afma_2019
81.224
46.112
31.92
https://tpc.googlesyndication.com/sodar/sodar2.js
66.64
56.624
6.3
https://www.google-analytics.com/gtm/js?id=GTM-PJ8J78F&cid=342045344.1624272717
57.252
42.784
11.208
Minimize main-thread work — 14.5 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
9360.9840000002
Other
2098.064
Script Parsing & Compilation
831.46
Style & Layout
689.824
Garbage Collection
659.628
Parse HTML & CSS
461.104
Rendering
388.568
Ensure text remains visible during webfont load
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
URL Potential Savings (Ms)
https://fonts.gstatic.com/s/googlesans/v27/4UabrENHsxJlGDuGo1OIlLU94YtzCwZsPF4o.woff2
3.2149999169633
https://fonts.gstatic.com/s/googlesans/v27/4UaGrENHsxJlGDuGo1OIlL3Owp5eKQtG.woff2
3.000000026077
https://fonts.gstatic.com/s/googlesans/v27/4UabrENHsxJlGDuGo1OIlLU94YtzCwZsPF4o.woff2
0.11899997480214
https://fonts.gstatic.com/s/googlesans/v27/4UaGrENHsxJlGDuGo1OIlL3Owp5eKQtG.woff2
0.12800004333258
https://fonts.gstatic.com/s/googlesans/v27/4UabrENHsxJlGDuGo1OIlLU94YtzCwZsPF4o.woff2
0.066999928094447
https://fonts.gstatic.com/s/roboto/v27/KFOlCnqEu92Fr1MmWUlfBBc4AMP6lQ.woff2
2.4999999441206
https://fonts.gstatic.com/s/roboto/v27/KFOlCnqEu92Fr1MmEU9fBBc4AMP6lQ.woff2
5.2060000598431
https://fonts.gstatic.com/s/roboto/v27/KFOlCnqEu92Fr1MmSU5fBBc4AMP6lQ.woff2
3.8919999497011
https://fonts.gstatic.com/s/roboto/v27/KFOlCnqEu92Fr1MmWUlfChc4AMP6lbBP.woff2
3.4710000036284
https://fonts.gstatic.com/s/roboto/v27/KFOlCnqEu92Fr1MmWUlfCxc4AMP6lbBP.woff2
7.5230000074953
Reduce the impact of third-party code — Third-party code blocked the main thread for 3,020 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
843619
2974.464
58453
41.392
133229
0
78971
0
60667
0
44903
0
3642
0
2072
0
1918
0
1509
0
1048
0
633
0
625
0
489
0
0
0
Avoid `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Source
Image elements do not have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.
URL Failing Elements
https://tailieukientruc.net/assets/tailieuv3/images/footPayment.png
img
https://tailieukientruc.net/assets/tailieuv3/images/nganluong.png
img
68

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of tailieukientruc.net. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Heading elements appear in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `tooltip` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
`<object>` elements have `[alt]` text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Tailieukientruc.net may provide assistance to deaf or hearing-impaired users with captions on videos.

ARIA

`[aria-*]` attributes do not match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
Failing Elements

Contrast

Background and foreground colors do not have a sufficient contrast ratio.
Many (if not most) users find low-contrast text difficult or impossible to read.
Failing Elements

Names and labels

`<frame>` or `<iframe>` elements do not have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Failing Elements
Links do not have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.

Internationalization and localization

`<html>` element does not have a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
Failing Elements

Tables and lists

Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
Failing Elements

Best practices

`[user-scalable="no"]` is used in the `<meta name="viewport">` element or the `[maximum-scale]` attribute is less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.
Failing Elements

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
60

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that tailieukientruc.net should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Ensure CSP is effective against XSS attacks
Significantly reduce the risk of cross-site scripting attacks (XSS) by ensuring you have a strong Content Security Policy (CSP).
Description Directive Severity
No CSP found in enforcement mode
High

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Avoids Application Cache
Application cache is deprecated and is no longer recommended.
Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
jQuery
1.9.1
jQuery UI
1.12.1
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
Page has valid source maps
Consider deploying source maps for added benefits such as the ability to debug while in production.
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://tailieukientruc.net/
Allowed
Links to cross-origin destinations are unsafe
Improve performance and prevent security vulnerabilities by adding rel="noopener" and rel="noreferrer" to external links.
Includes front-end JavaScript libraries with known security vulnerabilities — 4 vulnerabilities detected
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Library Version Vulnerability Count Highest Severity
4
Medium

Audits

Page lacks the HTML doctype, thus triggering quirks-mode
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.

Audits

Registers an `unload` listener
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.
Source
Browser errors were logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
Source Description
Access to script at 'https://embed.tawk.to/57873d939afe639c23e9ba87/default' from origin 'https://tailieukientruc.net' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
Failed to load resource: net::ERR_FAILED
Failed to load resource: net::ERR_TIMED_OUT
Failed to load resource: net::ERR_TIMED_OUT
Failed to load resource: net::ERR_TIMED_OUT
Failed to load resource: net::ERR_TIMED_OUT
Failed to load resource: net::ERR_TOO_MANY_REDIRECTS
Failed to load resource: net::ERR_TOO_MANY_REDIRECTS
91

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for tailieukientruc.net. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of tailieukientruc.net on mobile screens.
Document uses legible font sizes — 91.11% legible text
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Source Selector % of Page Text Font Size
.ns-o2w0s-v-20 .ns-o2w0s-e-5
3.86%
10px
.ns-eyin6-v-16 .ns-eyin6-e-5
3.73%
11.2px
.ns-eyin6-v-16 .ns-eyin6-e-11
0.40%
10.8px
.ns-o2w0s-v-20 .ns-o2w0s-e-11
0.40%
10px
.ns-eyin6-v-16 .ns-eyin6-e-14
0.31%
11.6px
.ns-o2w0s-v-20 .ns-o2w0s-e-14
0.18%
11px
91.11%
≥ 12px

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Links have descriptive text
Make use of descriptive link text to assist search engines in understanding the content.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Mobile Friendly

Tap targets are not sized appropriately — 88% appropriately sized tap targets
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.
Tap Target Size Overlapping Target
a
16x40
3
40x40
a

Crawling and Indexing

Links are not crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
50

Progressive Web App

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of tailieukientruc.net. This includes details about web app manifests.

PWA Optimized

Redirects HTTP traffic to HTTPS
It is advised to redirect all HTTP traffic to HTTPS, in order to enable secure web features for all users.
Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of tailieukientruc.net on mobile screens.
Provides a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.

Installable

Web app manifest or service worker do not meet the installability requirements — 1 reason
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
Failure reason
No manifest was fetched

PWA Optimized

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Hosting

Server Location

Server IP Address: 103.221.220.223
Continent: Asia
Country: Vietnam
Vietnam Flag
Region: Ho Chi Minh
City: Ho Chi Minh City
Longitude: 106.6296
Latitude: 10.823
Currencies: VND
Languages: Vietnamese

Web Hosting Provider

Name IP Address
AZDIGI Corporation
Registration

Domain Registrant

Private Registration: No
Name:
Organization:
Country:
City:
State:
Post Code:
Email:
Phone:
Note: Registration information is derived from various sources and may be inaccurate.

Domain Registrar

Name IP Address
P.A. Viet Nam Company Limited 112.213.82.66
Security

Visitor Safety

Mature Content: Not Likely
McAfee WebAdvisor Rating: Safe
WOT Rating:
WOT Trustworthiness:
WOT Child Safety:
Note: Safety information is not guaranteed.

SSL/TLS Certificate

Issued To: tailieukientruc.net
Issued By: R3
Valid From: 12th May, 2021
Valid To: 10th August, 2021
Subject: CN = tailieukientruc.net
Hash: 56cfdb5a
Issuer: CN = R3
O = Let's Encrypt
S = US
Version: 2
Serial Number: 0x046849C322A3C26DF47E5E68E3496D9FD4A3
Serial Number (Hex): 046849C322A3C26DF47E5E68E3496D9FD4A3
Valid From: 12th May, 2024
Valid To: 10th August, 2024
Signature Algorithm (Short Name): RSA-SHA256
Signature Algorithm (Long Name): sha256WithRSAEncryption
Authority Key Identifier: keyid:14:2E:B3:17:B7:58:56:CB:AE:50:09:40:E6:1F:AF:9D:8B:14:C2:C6
Extended Key Usage: TLS Web Server Authentication, TLS Web Client Authentication
Certificate Policies: Policy: 2.23.140.1.2.1
Policy: 1.3.6.1.4.1.44947.1.1.1
CPS: http://cps.letsencrypt.org

Authority Information Access: OCSP - URI:http://r3.o.lencr.org
CA Issuers - URI:http://r3.i.lencr.org/

SCT List: Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : 44:94:65:2E:B0:EE:CE:AF:C4:40:07:D8:A8:FE:28:C0:
DA:E6:82:BE:D8:CB:31:B5:3F:D3:33:96:B5:B6:81:A8
Timestamp : May 12 17:07:21.727 2021 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:44:02:20:20:C6:00:91:A9:F3:1E:59:41:50:F2:74:
9F:7C:9D:5E:54:C2:9F:E2:88:9F:56:AE:63:21:12:D3:
27:2C:C5:86:02:20:24:53:63:62:31:97:13:31:87:F6:
EE:3B:0F:A7:AD:28:FA:21:B4:16:21:69:65:A2:34:D2:
D5:08:A4:24:73:C1
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : F6:5C:94:2F:D1:77:30:22:14:54:18:08:30:94:56:8E:
E3:4D:13:19:33:BF:DF:0C:2F:20:0B:CC:4E:F1:64:E3
Timestamp : May 12 17:07:21.709 2021 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:45:02:21:00:F0:72:7C:67:B8:B4:C6:78:A8:C5:41:
A9:83:16:AC:F5:E4:40:B9:F7:2E:22:1C:38:65:83:43:
0E:68:E1:44:4E:02:20:7D:33:E8:C0:A4:F4:EA:62:CB:
38:8D:19:C4:48:07:2D:BE:C1:3E:88:2F:4F:5F:5D:50:
C0:E6:85:28:D9:97:5B
Key Usage: Digital Signature, Key Encipherment
Basic Constraints: CA:FALSE
Subject Alternative Name: DNS:www.tailieukientruc.net
DNS:tailieukientruc.net
Technical

DNS Lookup

A Records

Host IP Address Class TTL
tailieukientruc.net. 103.221.220.223 IN 359

NS Records

Host Nameserver Class TTL
tailieukientruc.net. ns2.pavietnam.vn. IN 359
tailieukientruc.net. ns1.pavietnam.vn. IN 359
tailieukientruc.net. nsbak.pavietnam.net. IN 359

SOA Records

Domain Name Primary NS Responsible Email TTL
tailieukientruc.net. nsbak.pavietnam.net. hostmaster.tailieukientruc.net. 3599

TXT Records

Host Value Class TTL
tailieukientruc.net. v=spf1 IN 359

HTTP Response Headers

HTTP-Code: HTTP/1.1 200 OK
Expires: 19th November, 1981
Cache-Control: no-store, no-cache, must-revalidate
Content-Type: text/html; charset=UTF-8
Date: 21st June, 2021
Server: LiteSpeed
X-Powered-By: PHP/7.3.15
Set-Cookie: *
Pragma: no-cache
Alt-Svc: quic=":443"; ma=2592000; v="43,46", h3-Q043=":443"; ma=2592000, h3-Q046=":443"; ma=2592000, h3-Q050=":443"; ma=2592000, h3-24=":443"; ma=2592000, h3-25=":443"; ma=2592000
Connection: Keep-Alive

Whois Lookup

Created: 20th April, 2015
Changed: 6th April, 2021
Expires: 20th April, 2022
Registrar: P.A. Viet Nam Company Limited
Status: clientTransferProhibited
Nameservers: ns1.pavietnam.vn
ns2.pavietnam.vn
nsbak.pavietnam.net
Owner Name: Domain Admin
Owner Organization: Domain Whois Protection Service
Owner Street: 1 Whois Privacy, Ward 1, District 1
Owner Post Code: 700000
Owner City: HCM
Owner Country: VN
Owner Phone: +84.909000000
Owner Email: protected@domainwhoisprotect.net
Admin Name: Domain Admin
Admin Organization: Domain Whois Protection Service
Admin Street: 1 Whois Privacy, Ward 1, District 1
Admin Post Code: 700000
Admin City: HCM
Admin Country: VN
Admin Phone: +84.909000000
Admin Email: protected@domainwhoisprotect.net
Tech Name: Domain Admin
Tech Organization: Domain Whois Protection Service
Tech Street: 1 Whois Privacy, Ward 1, District 1
Tech Post Code: 700000
Tech City: HCM
Tech Country: VN
Tech Phone: +84.909000000
Tech Email: protected@domainwhoisprotect.net
Full Whois: Domain Name: tailieukientruc.net
Registry Domain ID: 1921524845_DOMAIN_NET-VRSN
Registrar WHOIS Server: whois.pavietnam.vn
Registrar URL: http://www.pavietnam.vn
Updated Date: 2021-04-06
Creation Date: 2015-04-20 00:00:00
Registrar Registration Expiration Date: 2022-04-20 00:00:00
Registrar: P.A. Viet Nam Company Limited
Registrar IANA ID: 1649

Registrar Abuse Contact Email: abuse@pavietnam.vn
Registrar Abuse Contact Phone: +84.2873019954
Domain Status: clientTransferProhibited http://www.icann.org/epp#clientTransferProhibited
Registry Registrant ID: Not available from Registry
Registrant Name: Domain Admin
Registrant Organization: Domain Whois Protection Service
Registrant Street: 1 Whois Privacy, Ward 1, District 1
Registrant City: HCM
Registrant State/Province:
Registrant Postal Code: 700000
Registrant Country: VN
Registrant Phone: +84.909000000
Registrant Fax:
Registrant Email: protected@domainwhoisprotect.net
Admin Name: Domain Admin
Admin Organization: Domain Whois Protection Service
Admin Street: 1 Whois Privacy, Ward 1, District 1
Registry Admin ID: Not available from Registry
Admin City: HCM
Admin State/Province:
Admin Postal Code: 700000
Admin Country: VN
Admin Phone: +84.909000000
Admin Fax:
Admin Email: protected@domainwhoisprotect.net
Registry Tech ID: Not available from Registry
Tech Name: Domain Admin
Tech Organization: Domain Whois Protection Service
Tech Street: 1 Whois Privacy, Ward 1, District 1
Tech City: HCM
Tech State/Province:
Tech Postal Code: 700000
Tech Country: VN
Tech Phone: +84.909000000
Tech Fax:
Tech Email: protected@domainwhoisprotect.net
DNSSEC:Unsigned
whois_protected_tailieukientruc.net
URL of the ICANN WHOIS Data Problem Reporting System: http://wdprs.internic.net/
>>> Last update of WHOIS database: 2021-04-06T05:15:14Z <<<

For more information on Whois status codes, please visit https://icann.org/epp

The data in this whois database is provided to you for information purposes
only, that is, to assist you in obtaining information about or related to a
domain name registration record. We make this information available "as is",
and do not guarantee its accuracy. By submitting a whois query, you agree
that you will use this data only for lawful purposes and that, under no
circumstances will you use this data to:
(1) enable high volume, automated, electronic processes that stress or load
this whois database system providing you this information; or
(2) allow, enable, or otherwise support the transmission of mass unsolicited,
commercial advertising or solicitations via direct mail, electronic mail, or
by telephone.
The compilation, repackaging, dissemination or other use of this data is
expressly prohibited without prior written consent from us. The Registrar of
record is P.A. Viet Nam Company Limited.
We reserve the right to modify these terms at any time.
By submitting this query, you agree to abide by these terms..

Nameservers

Name IP Address
ns1.pavietnam.vn 112.213.89.3
ns2.pavietnam.vn 222.255.121.247
nsbak.pavietnam.net 112.213.89.22
Related

Subdomains

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Domain Valuation Snoop Score
0/5

Sites hosted on the same IP address