Access . Thư Viện Đề Thi & Kiểm Tra - Accessify

Có thể bạn quan tâm

Report Summary

10
Performance

Renders faster than 23% of other websites
87
Accessibility

Visual factors better than that of 66% of websites
67
Best Practices

More advanced features available than in 24% of websites
69
SEO

Google-friendlier than 28% of websites

dethi.violet.vn Thư viện Đề thi & Kiểm tra

Page Load Speed

124.9 sec in total

First Response

2.2 sec

Resources Loaded

100 sec

Page Rendered

22.7 sec

About Website

Welcome to dethi.violet.vn homepage info - get ready to check De Thi Violet best content for Vietnam right away, or after learning these important things about dethi.violet.vn

Mạng xã hội của cộng đồng giáo viên Việt Nam, nơi giao lưu kiến thức và chia sẻ tài nguyên dạy học

Visit dethi.violet.vn

Key Findings

We analyzed Dethi.violet.vn page load time and found that the first response time was 2.2 sec and then it took 122.7 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there were 64 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

dethi.violet.vn performance score

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

8/100

10%

LCP (Largest Contentful Paint)

Value12.8 s

0/100

25%

SI (Speed Index)

Value13.5 s

2/100

10%

TBT (Total Blocking Time)

Value4,440 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.219

57/100

15%

TTI (Time to Interactive)

Value16.5 s

5/100

10%

Network Requests Diagram

dethi.violet.vn

2172 ms

a52d29e6c87d0a503197f07a8520ba36_1504114586.css

714 ms

3ba054f42ce14e61c687e601f39df04e_1504114585.js

1672 ms

ants.js

4047 ms

4048.js

3329 ms

View All Requests

Our browser made a total of 218 requests to load all elements on the main page. We found that 9% of them (19 requests) were addressed to the original Dethi.violet.vn, 8% (17 requests) were made to D2.violet.vn and 6% (12 requests) were made to D1.violet.vn. The less responsive or slowest element that took the longest time to load (23.6 sec) relates to the external source Ads.lfstmedia.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.4 MB (59%)

Content Size

4.0 MB

After Optimization

1.6 MB

HTML
Images
JavaScript
CSS

In fact, the total size of Dethi.violet.vn main page is 4.0 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 65% of websites need less resources to load. Javascripts take 2.4 MB which makes up the majority of the site volume.

HTML Optimization

-96%

Potential reduce by 552.3 kB

Original 576.0 kB
After minification 566.1 kB
After compression 23.7 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 552.3 kB or 96% of the original size.

Image Optimization

-6%

Potential reduce by 41.2 kB

Original 745.8 kB
After minification 704.6 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. De Thi Violet images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 1.6 MB

Original 2.4 MB
After minification 2.4 MB
After compression 847.6 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 1.6 MB or 65% of the original size.

CSS Optimization

-83%

Potential reduce by 198.4 kB

Original 237.7 kB
After minification 232.7 kB
After compression 39.3 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Dethi.violet.vn needs all CSS files to be minified and compressed as it can save up to 198.4 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 80 (58%)

Requests Now

139

After Optimization

AJAX
Images
JavaScript
CSS

The browser has sent 139 CSS, Javascripts, AJAX and image requests in order to completely render the main page of De Thi Violet. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 34 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

dethi.violet.vn

2172 ms

a52d29e6c87d0a503197f07a8520ba36_1504114586.css

714 ms

3ba054f42ce14e61c687e601f39df04e_1504114585.js

1672 ms

ants.js

4047 ms

4048.js

3329 ms

adsbygoogle.js

32 ms

ad-exchange.js

251 ms

style1.css

1079 ms

jquery.min.js

3090 ms

script.js

1092 ms

jcat170809093607.js

1049 ms

bannerViOLETdethi1090.jpg

1056 ms

kg1718.png

4052 ms

word-logo.jpg

3576 ms

banner-dethi-1090_logo1.jpg

868 ms

banner-dethi-1090_logo2.jpg

782 ms

12110834.jpg

868 ms

12110829.jpg

1171 ms

12072606.jpg

907 ms

phone.png

762 ms

mobile.png

762 ms

email.png

834 ms

teamviewer.png

746 ms

ta123.png

3934 ms

bg1.gif

744 ms

chromebg.gif

745 ms

block-header.gif

888 ms

block-content.gif

673 ms

thumbnail.jpg

3243 ms

thumbnail.jpg

3243 ms

pdf.jpg

3242 ms

thumbnail.jpg

3195 ms

thumbnail.jpg

3669 ms

thumbnail.jpg

5062 ms

thumbnail.jpg

3957 ms

xls.jpg

3656 ms

thumbnail.jpg

3941 ms

avatar.jpg

3654 ms

avatar.jpg

7426 ms

avatar.jpg

7389 ms

no_avatar.jpg

3903 ms

no_avatarf.jpg

7388 ms

avatar.jpg

7389 ms

avatar.jpg

7389 ms

cse.js

2377 ms

adsbyeclick.js

3066 ms

analytics.js

2475 ms

com.js

7326 ms

proxy.html

5305 ms

ants.css

1317 ms

bids

4194 ms

jsapi

3316 ms

collect

2659 ms

getid

5424 ms

e_lookup.html

2706 ms

eclick.css

2619 ms

ads_impl.js

2658 ms

frame-middle2.gif

2053 ms

frame-top.gif

1469 ms

frame-bottom.gif

1408 ms

group160.png

1409 ms

default+vi.css

196 ms

default.css

695 ms

default+vi.I.js

885 ms

batch.json

1656 ms

beacon.js

1129 ms

pageview

1331 ms

ca-pub-9194108261803107.js

2336 ms

zrt_lookup.html

2838 ms

show_ads_impl.js

558 ms

remarketing-list

2323 ms

get_device

2352 ms

get_network

2353 ms

get_loc

2352 ms

get_id

2369 ms

ads

1054 ms

osd.js

799 ms

1495 ms

583976502.json

718 ms

ads

956 ms

eclick-970x90.html

1030 ms

getjs.aspx

1135 ms

pi

1324 ms

eclick-160x600.html

1032 ms

adnetwork.js

19816 ms

ambient

933 ms

generic

649 ms

tracker.js

929 ms

4071.js

600 ms

generic

218 ms

getjs.static.js

3041 ms

sync

1711 ms

recv

3258 ms

4070.js

2941 ms

recv

3192 ms

ads

1773 ms

recv

1859 ms

batch.json

702 ms

GetAd.aspx

848 ms

px

1441 ms

show.js

2762 ms

visitormatch

4062 ms

p-01-0VIaSjnOLg.gif

15137 ms

ads

1970 ms

batch.json

2242 ms

ads

11969 ms

match

23599 ms

ping_match.gif

23563 ms

pixelSync

23563 ms

cse

23562 ms

pixel

23588 ms

contextweb

23587 ms

rtb-h

23588 ms

sync

23588 ms

Pug

23370 ms

pulse

23369 ms

cookiesync

23420 ms

mapuser

23419 ms

xuid

23387 ms

v1

23387 ms

dsps

23387 ms

pp

23372 ms

user-sync

23372 ms

cksync.js

23373 ms

23372 ms

usersync

23372 ms

match

23372 ms

csm

23337 ms

user_sync

23338 ms

user_sync.php

23463 ms

sync

23463 ms

u8e3c8074elh

23463 ms

nrtcsync.html

23432 ms

GenericUserSync.ashx

23431 ms

pulsepoint

23322 ms

tap.php

23322 ms

sync

23322 ms

pixelmatch

23321 ms

pulsepoint_user_sync

23321 ms

v1

23296 ms

cc.ashx

23296 ms

px

23405 ms

dmuid

23399 ms

1010

23399 ms

cm

23399 ms

um

23399 ms

pulsepoint

23399 ms

4fd7706f366fdfe3834c

23399 ms

sync

23399 ms

user-sync

23371 ms

user

23371 ms

user

23370 ms

777 ms

pixel.gif

23427 ms

u8e3c8074elh

23426 ms

23427 ms

user-sync

23427 ms

pulsepoint_video

23609 ms

400066.gif

10976 ms

impsc.php

10867 ms

pageview

14024 ms

ads

14696 ms

zone797.css

22327 ms

quant.js

22310 ms

12392_59721a140d4ee.png

23282 ms

34288_58e992de0e34a.jpg

23287 ms

34288_5906dd4701fc3.jpg

23287 ms

1775_58c1883353977.jpg

23287 ms

12392_59a8662d6134b.jpg

23286 ms

34288_59056086cc8d8.jpg

23286 ms

pageview

14277 ms

5903 ms

demconf.jpg

5790 ms

ads

60 ms

rtset

9213 ms

ads

6978 ms

rtset

6662 ms

rtset

6176 ms

rtset

5953 ms

rtset

5738 ms

iu3

4683 ms

sync

4682 ms

beacon.js

6053 ms

2165 ms

541165075.json

950 ms

rtset

1095 ms

rtset

853 ms

ads

396 ms

ads

2954 ms

38310

3076 ms

rtset

2599 ms

loading.gif

1883 ms

yo-delivery.js

7251 ms

rtset

330 ms

eclick-160x600.html

751 ms

batch.json

534 ms

pageview

667 ms

delivery

19619 ms

ga.js

120 ms

__utm.gif

4010 ms

iconUncheckAll.gif

3654 ms

collect

942 ms

leaf.gif

889 ms

line3.gif

843 ms

line2.gif

843 ms

folderClosed.gif

1030 ms

plus4.gif

1031 ms

plus3.gif

1069 ms

plus2.gif

1143 ms

ga-audiences

304 ms

async-ads.js

2475 ms

googlelogo_lightgrey_46x16dp.png

2466 ms

googlelogo_grey_46x15dp.png

180 ms

search_box_icon.png

157 ms

clear.png

235 ms

Accessibility Review

dethi.violet.vn accessibility score

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

dethi.violet.vn best practices score

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

dethi.violet.vn SEO score

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

Language and Encoding

Language Detected

VI
Language Claimed

EN
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dethi.violet.vn can be misinterpreted by Google and other search engines. Our service has detected that Vietnamese is used on the page, and it does not match the claimed English language. Our system also found out that Dethi.violet.vn main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

dethi.violet.vn

Open Graph description is not detected on the main page of De Thi Violet. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks:

Từ khóa » Thư Viện Violet đề Thi