Tools & Wizards About Us
violet.vn screenshot

Report Summary

  • 38

    Performance

    Renders faster than
    58% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 48% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

violet.vn

Page Load Speed

114.8 sec in total

First Response

850 ms

Resources Loaded

98.5 sec

Page Rendered

15.5 sec

violet.vn screenshot

About Website

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

Key Findings

We analyzed Violet.vn page load time and found that the first response time was 850 ms and then it took 114 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there were 36 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

violet.vn performance score

38

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.8 s

4/100

10%

LCP (Largest Contentful Paint)

Value8.9 s

1/100

25%

SI (Speed Index)

Value13.1 s

2/100

10%

TBT (Total Blocking Time)

Value390 ms

69/100

30%

CLS (Cumulative Layout Shift)

Value0.022

100/100

15%

TTI (Time to Interactive)

Value13.7 s

10/100

10%

Network Requests Diagram

850 ms

c9a9b691f1a8041ac1314dd68eca24ff_1504114597.css

689 ms

27a5c096bbf059ed631b326fd3236f54_1504114585.js

1387 ms

lesson_20170905095108.js

3219 ms

adsbygoogle.js

136 ms

Our browser made a total of 191 requests to load all elements on the main page. We found that 7% of them (13 requests) were addressed to the original Violet.vn, 7% (14 requests) were made to D2.violet.vn and 6% (12 requests) were made to Bh.contextweb.com. The less responsive or slowest element that took the longest time to load (20.9 sec) relates to the external source Ads.lfstmedia.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 3.0 MB (51%)

Content Size

5.8 MB

After Optimization

2.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Violet.vn main page is 5.8 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Javascripts take 3.7 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 42.9 kB

  • Original 55.8 kB
  • After minification 49.5 kB
  • After compression 12.9 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. This page needs HTML code to be minified as it can gain 6.3 kB, which is 11% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 42.9 kB or 77% of the original size.

Image Optimization

-5%

Potential reduce by 95.9 kB

  • Original 1.8 MB
  • After minification 1.7 MB

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. Violet images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 2.6 MB

  • Original 3.7 MB
  • After minification 3.7 MB
  • After compression 1.1 MB

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 2.6 MB or 71% of the original size.

CSS Optimization

-82%

Potential reduce by 210.7 kB

  • Original 255.6 kB
  • After minification 250.6 kB
  • After compression 44.9 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. Violet.vn needs all CSS files to be minified and compressed as it can save up to 210.7 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 86 (61%)

Requests Now

142

After Optimization

56

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 142 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 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 38 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

850 ms

c9a9b691f1a8041ac1314dd68eca24ff_1504114597.css

c9a9b691f1a8041ac1314dd68eca24ff_1504114597.css

689 ms

27a5c096bbf059ed631b326fd3236f54_1504114585.js

27a5c096bbf059ed631b326fd3236f54_1504114585.js

1387 ms

lesson_20170905095108.js

lesson_20170905095108.js

3219 ms

adsbygoogle.js

adsbygoogle.js

136 ms

ad-exchange.js

ad-exchange.js

185 ms

ants.js

ants.js

3870 ms

style1.css

style1.css

739 ms

jquery.min.js

jquery.min.js

3104 ms

script.js

script.js

756 ms

bannertrangchu1090_back.jpg

bannertrangchu1090_back.jpg

12837 ms

kg1718.png

kg1718.png

13043 ms

Slide0.jpg

Slide0.jpg

12473 ms

banner-trangchu-1090_logo.jpg

banner-trangchu-1090_logo.jpg

12463 ms

12095684.jpg

12095684.jpg

12456 ms

12110829.jpg

12110829.jpg

12464 ms

12072606.jpg

12072606.jpg

1629 ms

12110834.jpg

12110834.jpg

12648 ms

phone.png

phone.png

1068 ms

mobile.png

mobile.png

1066 ms

email.png

email.png

1067 ms

teamviewer.png

teamviewer.png

1067 ms

ta123.png

ta123.png

12641 ms

bg1.gif

bg1.gif

981 ms

chromebg.gif

chromebg.gif

1052 ms

block-header.gif

block-header.gif

1046 ms

block-content.gif

block-content.gif

1046 ms

Slide0.jpg

Slide0.jpg

12396 ms

Slide0.jpg

Slide0.jpg

12394 ms

word-logo.jpg

word-logo.jpg

12381 ms

scorm-icon.gif

scorm-icon.gif

12637 ms

thumbnail.jpg

thumbnail.jpg

12636 ms

thumbnail.jpg

thumbnail.jpg

12873 ms

DSC01815.JPG.jpg

DSC01815.JPG.jpg

13130 ms

DSC01814.JPG.jpg

DSC01814.JPG.jpg

13129 ms

DSC01813.JPG.jpg

DSC01813.JPG.jpg

13129 ms

no_avatar.jpg

no_avatar.jpg

12620 ms

no_avatarf.jpg

no_avatarf.jpg

12620 ms

avatar.jpg

avatar.jpg

13099 ms

avatar.jpg

avatar.jpg

12864 ms

cse.js

cse.js

12051 ms

frame-middle2.gif

frame-middle2.gif

11427 ms

frame-top.gif

frame-top.gif

11651 ms

frame-bottom.gif

frame-bottom.gif

11651 ms

frame-middle.gif

frame-middle.gif

826 ms

group160.png

group160.png

826 ms

jsapi

jsapi

3097 ms

ca-pub-9194108261803107.js

ca-pub-9194108261803107.js

3238 ms

zrt_lookup.html

zrt_lookup.html

3563 ms

show_ads_impl.js

show_ads_impl.js

734 ms

2758 ms

ads

ads

2530 ms

osd.js

osd.js

1484 ms

default+vi.css

default+vi.css

659 ms

default.css

default.css

1092 ms

default+vi.I.js

default+vi.I.js

1987 ms

adnetwork.js

adnetwork.js

19887 ms

ambient

ambient

736 ms

generic

generic

637 ms

tracker.js

tracker.js

705 ms

eclick-970x90.html

eclick-970x90.html

777 ms

generic

generic

774 ms

sync

sync

754 ms

recv

recv

1244 ms

px

px

1175 ms

recv

recv

615 ms

recv

recv

817 ms

4071.js

4071.js

1889 ms

adsbyeclick.js

adsbyeclick.js

865 ms

getid

getid

1086 ms

e_lookup.html

e_lookup.html

599 ms

eclick.css

eclick.css

461 ms

ads_impl.js

ads_impl.js

837 ms

batch.json

batch.json

1180 ms

pageview

pageview

366 ms

com.js

com.js

1437 ms

proxy.html

proxy.html

1511 ms

ants.css

ants.css

730 ms

bids

bids

4188 ms

beacon.js

beacon.js

31 ms

ads

ads

329 ms

ads

ads

1378 ms

loading.gif

loading.gif

1819 ms

yo-delivery.js

yo-delivery.js

6328 ms

gen_204

gen_204

1089 ms

ad

ad

1061 ms

m_window_focus_non_hydra.js

m_window_focus_non_hydra.js

2070 ms

osd_listener.js

osd_listener.js

2208 ms

m_qs_click_protection.js

m_qs_click_protection.js

2207 ms

RiskyCities-general-160x600.jpg

RiskyCities-general-160x600.jpg

2100 ms

abg.js

abg.js

671 ms

lidar.js

lidar.js

743 ms

d5qAyLYU.js

d5qAyLYU.js

1736 ms

remarketing-list

remarketing-list

1516 ms

get_device

get_device

1697 ms

get_network

get_network

1747 ms

get_loc

get_loc

1748 ms

get_id

get_id

1604 ms

pixel

pixel

1095 ms

cookie_push.html

cookie_push.html

914 ms

transparent.png

transparent.png

282 ms

pixel

pixel

872 ms

9im3l02I.html

9im3l02I.html

638 ms

T8Ys39_ecZUP0z5o0qwgiftCx6c5Z_CDv350QIo51NY.js

T8Ys39_ecZUP0z5o0qwgiftCx6c5Z_CDv350QIo51NY.js

650 ms

583976502.json

583976502.json

1204 ms

pixel

pixel

222 ms

sync

sync

1001 ms

getjs.aspx

getjs.aspx

826 ms

pi

pi

1444 ms

delivery

delivery

19541 ms

pixel

pixel

248 ms

contextweb

contextweb

717 ms

getjs.static.js

getjs.static.js

1445 ms

GetAd.aspx

GetAd.aspx

783 ms

show.js

show.js

2397 ms

visitormatch

visitormatch

894 ms

p-01-0VIaSjnOLg.gif

p-01-0VIaSjnOLg.gif

17534 ms

match

match

20324 ms

ping_match.gif

ping_match.gif

20324 ms

pixelSync

pixelSync

20324 ms

cse

cse

20312 ms

contextweb

contextweb

20312 ms

sync

sync

16960 ms

Pug

Pug

18580 ms

pulse

pulse

20311 ms

mapuser

mapuser

20311 ms

xuid

xuid

20311 ms

v1

v1

18231 ms

dsps

dsps

20249 ms

pp

pp

20330 ms

user-sync

user-sync

20329 ms

cksync.js

cksync.js

20330 ms

usersync

usersync

20329 ms

match

match

20282 ms

user_sync

user_sync

20283 ms

user_sync.php

user_sync.php

20282 ms

sync

sync

1645 ms

20251 ms

yjgAZ1hElzBe

yjgAZ1hElzBe

18433 ms

nrtcsync.html

nrtcsync.html

20250 ms

pulsepoint

pulsepoint

20553 ms

tap.php

tap.php

1644 ms

sync

sync

20577 ms

v1

v1

20733 ms

cc.ashx

cc.ashx

20734 ms

1010

1010

20628 ms

cm

cm

20731 ms

um

um

18324 ms

20731 ms

pulsepoint

pulsepoint

20731 ms

4fd7706f366fdfe3834c

4fd7706f366fdfe3834c

20731 ms

sync

sync

18323 ms

user

user

20730 ms

user

user

20730 ms

291 ms

pixel.gif

pixel.gif

20680 ms

ad

ad

20681 ms

user-sync

user-sync

20680 ms

pulsepoint_video

pulsepoint_video

20916 ms

rtset

rtset

14024 ms

impsc.php

impsc.php

13924 ms

zone797.css

zone797.css

18822 ms

quant.js

quant.js

18740 ms

34288_58e992de0e34a.jpg

34288_58e992de0e34a.jpg

18561 ms

34288_5906dd4701fc3.jpg

34288_5906dd4701fc3.jpg

18561 ms

1775_58c1883353977.jpg

1775_58c1883353977.jpg

19543 ms

34288_58e5d519a665d.jpg

34288_58e5d519a665d.jpg

18560 ms

12392_59721a140d4ee.png

12392_59721a140d4ee.png

19542 ms

12392_59a8662d6134b.jpg

12392_59a8662d6134b.jpg

0 ms

ga.js

ga.js

5529 ms

demconf.jpg

demconf.jpg

4931 ms

rtset

rtset

4509 ms

rtset

rtset

3504 ms

pixelmatch

pixelmatch

5321 ms

400066.gif

400066.gif

5320 ms

rtset

rtset

12288 ms

rtset

rtset

12920 ms

user-sync

user-sync

15053 ms

rtset

rtset

13333 ms

rtset

rtset

13014 ms

rtset

rtset

9829 ms

closebox.png

closebox.png

4118 ms

rtset

rtset

3313 ms

collect

collect

6163 ms

rtset

rtset

3000 ms

beacon.js

beacon.js

3918 ms

https:/?dsp=86942&t=image&uid=6kwFJQDNtbF

https:/?dsp=86942&t=image&uid=6kwFJQDNtbF

1115 ms

38310

38310

1638 ms

ga-audiences

ga-audiences

180 ms

rules-p-b8GPCpJxfqYm2.js

rules-p-b8GPCpJxfqYm2.js

315 ms

rtset

rtset

94 ms

Accessibility Review

violet.vn accessibility score

79

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

violet.vn best practices score

67

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

Missing source maps for large first-party JavaScript

SEO Factors

violet.vn SEO score

69

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

    N/A

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Violet.vn can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is English. Our system also found out that 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

violet.vn

Open Graph description is not detected on the main page of 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: