Tools & Wizards About Us
vnk.edu.vn screenshot

Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 64

    SEO

    Google-friendlier than
    24% of websites

vnk.edu.vn

VNK EDU | Trung tâm đào tạo cơ điện, plc hàng đầu Việt Nam

Page Load Speed

13.7 sec in total

First Response

845 ms

Resources Loaded

12.7 sec

Page Rendered

216 ms

vnk.edu.vn screenshot

About Website

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

Bạn mong muốn trở thành kỹ sư thiết kế cơ điện. Hãy đến ngay VNK để được trải nghiệm các khóa học M&E chuyên nghiệp: Điện-Nước-ĐHKK-PCCC-Revit MEP-Autocad

Visit vnk.edu.vn

Key Findings

We analyzed Vnk.edu.vn page load time and found that the first response time was 845 ms and then it took 12.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

vnk.edu.vn performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.1 s

3/100

10%

LCP (Largest Contentful Paint)

Value18.2 s

0/100

25%

SI (Speed Index)

Value17.0 s

0/100

10%

TBT (Total Blocking Time)

Value1,780 ms

10/100

30%

CLS (Cumulative Layout Shift)

Value0.057

98/100

15%

TTI (Time to Interactive)

Value22.0 s

1/100

10%

Network Requests Diagram

vnk.edu.vn

845 ms

vnk.edu.vn

6752 ms

style.css

1577 ms

style.min.css

788 ms

bootstrap.min.css

3007 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 39% of them (23 requests) were addressed to the original Vnk.edu.vn, 17% (10 requests) were made to Static.xx.fbcdn.net and 8% (5 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (6.8 sec) belongs to the original domain Vnk.edu.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 114.0 kB (10%)

Content Size

1.1 MB

After Optimization

1.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vnk.edu.vn main page is 1.1 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. 80% 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. Images take 465.0 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 42.0 kB

  • Original 53.0 kB
  • After minification 52.0 kB
  • After compression 11.0 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 42.0 kB or 79% of the original size.

Image Optimization

-4%

Potential reduce by 18.1 kB

  • Original 465.0 kB
  • After minification 446.9 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. VNK images are well optimized though.

JavaScript Optimization

-13%

Potential reduce by 52.7 kB

  • Original 414.5 kB
  • After minification 414.3 kB
  • After compression 361.8 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 52.7 kB or 13% of the original size.

CSS Optimization

-1%

Potential reduce by 1.2 kB

  • Original 216.4 kB
  • After minification 216.4 kB
  • After compression 215.2 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. Vnk.edu.vn has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 33 (61%)

Requests Now

54

After Optimization

21

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of VNK. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

vnk.edu.vn

vnk.edu.vn

845 ms

vnk.edu.vn

vnk.edu.vn

6752 ms

style.css

style.css

1577 ms

style.min.css

style.min.css

788 ms

bootstrap.min.css

bootstrap.min.css

3007 ms

style.css

style.css

789 ms

dashicons.min.css

dashicons.min.css

1062 ms

public.css

public.css

1035 ms

bootstrap.min.css

bootstrap.min.css

1306 ms

jquery.min.js

jquery.min.js

1545 ms

jquery-migrate.min.js

jquery-migrate.min.js

1324 ms

bootstrap.min.js

bootstrap.min.js

1532 ms

form-submit.js

form-submit.js

1576 ms

hoverIntent.min.js

hoverIntent.min.js

2286 ms

maxmegamenu.js

maxmegamenu.js

2540 ms

eebc32e7

eebc32e7

1299 ms

VNK-EDU.png

VNK-EDU.png

2061 ms

E-Man.png

E-Man.png

1519 ms

4Things-01.png

4Things-01.png

522 ms

4Things-02.png

4Things-02.png

523 ms

4Things-03.png

4Things-03.png

522 ms

4Things-04.png

4Things-04.png

881 ms

Logo-doi-tac.png

Logo-doi-tac.png

1296 ms

gtm.js

gtm.js

68 ms

cmqMoi4-xBw

cmqMoi4-xBw

115 ms

anHF8SiW8Qk

anHF8SiW8Qk

215 ms

banner-web.jpg

banner-web.jpg

1539 ms

wARDj0u

wARDj0u

15 ms

page.php

page.php

92 ms

widgetMaxlead.js

widgetMaxlead.js

940 ms

uSNZLykqYPO.css

uSNZLykqYPO.css

11 ms

_xEZqbFuBFV.js

_xEZqbFuBFV.js

36 ms

o1ndYS2og_B.js

o1ndYS2og_B.js

36 ms

guwKwycnxkZ.js

guwKwycnxkZ.js

57 ms

VbCgKXRxGU7.js

VbCgKXRxGU7.js

59 ms

p55HfXW__mM.js

p55HfXW__mM.js

61 ms

ALTQi95mOyD.js

ALTQi95mOyD.js

60 ms

j6FwKUdWUaU.js

j6FwKUdWUaU.js

62 ms

www-player.css

www-player.css

11 ms

www-embed-player.js

www-embed-player.js

101 ms

base.js

base.js

127 ms

450329566_881707080659987_3828370209964897315_n.jpg

450329566_881707080659987_3828370209964897315_n.jpg

318 ms

339975187_944156743392252_7818801415435749305_n.jpg

339975187_944156743392252_7818801415435749305_n.jpg

359 ms

2vViO7gHnuy.js

2vViO7gHnuy.js

335 ms

UXtr_j2Fwe-.png

UXtr_j2Fwe-.png

283 ms

www-player.css

www-player.css

316 ms

www-embed-player.js

www-embed-player.js

345 ms

base.js

base.js

364 ms

ad_status.js

ad_status.js

173 ms

d6WzJaofU1kne-aGzzhRfrvQvcguvwwbKAzGVw0Fi1w.js

d6WzJaofU1kne-aGzzhRfrvQvcguvwwbKAzGVw0Fi1w.js

123 ms

embed.js

embed.js

36 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

221 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

222 ms

Create

Create

181 ms

id

id

175 ms

embed.js

embed.js

108 ms

Create

Create

116 ms

GenerateIT

GenerateIT

200 ms

GenerateIT

GenerateIT

12 ms

Accessibility Review

vnk.edu.vn accessibility score

78

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

vnk.edu.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

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

vnk.edu.vn SEO score

64

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

    VI

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vnk.edu.vn can be misinterpreted by Google and other search engines. Our service has detected that Vietnamese is used on the page, and it matches the claimed language. Our system also found out that Vnk.edu.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

vnk.edu.vn

Open Graph data is detected on the main page of VNK. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: