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Report Summary

  • 92

    Performance

    Renders faster than
    92% of other websites

  • 65

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

directory.edu.vn

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Page Load Speed

3.6 sec in total

First Response

1.5 sec

Resources Loaded

2 sec

Page Rendered

131 ms

directory.edu.vn screenshot

About Website

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Key Findings

We analyzed Directory.edu.vn page load time and found that the first response time was 1.5 sec and then it took 2.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

directory.edu.vn performance score

92

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

78/100

10%

LCP (Largest Contentful Paint)

Value2.2 s

95/100

25%

SI (Speed Index)

Value5.2 s

60/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.1 s

95/100

10%

Network Requests Diagram

directory.edu.vn

1466 ms

main.css

89 ms

fileuploader.css

170 ms

bg.png

90 ms

logo.png

89 ms

Our browser made a total of 19 requests to load all elements on the main page. We found that all of those requests were addressed to Directory.edu.vn and no external sources were called. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Directory.edu.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 43.9 kB (74%)

Content Size

59.6 kB

After Optimization

15.7 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Directory.edu.vn main page is 59.6 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. Only 10% of websites need less resources to load. HTML takes 31.8 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 26.2 kB

  • Original 31.8 kB
  • After minification 31.8 kB
  • After compression 5.6 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 26.2 kB or 82% of the original size.

Image Optimization

-39%

Potential reduce by 4.4 kB

  • Original 11.2 kB
  • After minification 6.8 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. Obviously, Directory needs image optimization as it can save up to 4.4 kB or 39% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-80%

Potential reduce by 13.2 kB

  • Original 16.5 kB
  • After minification 12.3 kB
  • After compression 3.3 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. Directory.edu.vn needs all CSS files to be minified and compressed as it can save up to 13.2 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (72%)

Requests Now

18

After Optimization

5

  • Images
  • CSS

The browser has sent 18 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Directory. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

directory.edu.vn

directory.edu.vn

1466 ms

main.css

main.css

89 ms

fileuploader.css

fileuploader.css

170 ms

bg.png

bg.png

90 ms

logo.png

logo.png

89 ms

searchBg.png

searchBg.png

171 ms

hMenuContainerBg.png

hMenuContainerBg.png

172 ms

hMenuLeft.png

hMenuLeft.png

169 ms

hMenuSeparator.png

hMenuSeparator.png

171 ms

hMenuRight.png

hMenuRight.png

173 ms

pathBg.png

pathBg.png

172 ms

boxTopLeft.png

boxTopLeft.png

256 ms

boxTopCenter.png

boxTopCenter.png

257 ms

boxTopRight.png

boxTopRight.png

257 ms

boxMiddle.png

boxMiddle.png

255 ms

boxPopCatsBg.png

boxPopCatsBg.png

258 ms

boxBottom.png

boxBottom.png

258 ms

hbar.png

hbar.png

341 ms

icon_bullet_blue.png

icon_bullet_blue.png

342 ms

Accessibility Review

directory.edu.vn accessibility score

65

Accessibility Issues

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

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

directory.edu.vn best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

directory.edu.vn SEO score

91

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

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Directory.edu.vn can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Directory.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

directory.edu.vn

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