Report Summary

  • 40

    Performance

    Renders faster than
    60% of other websites

  • 60

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 89

    SEO

    Google-friendlier than
    67% of websites

taidanh.edu.vn

Trang thông tin kiến thức bổ ích cho cuộc sống

Page Load Speed

5.2 sec in total

First Response

1.5 sec

Resources Loaded

3.1 sec

Page Rendered

612 ms

taidanh.edu.vn screenshot

About Website

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

Trang chia sẻ thông tin kiến thức bổ ích cho cuộc sống, sức khỏe

Visit taidanh.edu.vn

Key Findings

We analyzed Taidanh.edu.vn page load time and found that the first response time was 1.5 sec and then it took 3.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

taidanh.edu.vn performance score

40

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

35/100

10%

LCP (Largest Contentful Paint)

Value7.6 s

4/100

25%

SI (Speed Index)

Value8.6 s

17/100

10%

TBT (Total Blocking Time)

Value110 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0.541

14/100

15%

TTI (Time to Interactive)

Value10.6 s

23/100

10%

Network Requests Diagram

taidanh.edu.vn

1489 ms

css.php

1078 ms

css.php

691 ms

jquery-1.11.0.min.js

770 ms

xenforo.js

1056 ms

Our browser made a total of 43 requests to load all elements on the main page. We found that 47% of them (20 requests) were addressed to the original Taidanh.edu.vn, 12% (5 requests) were made to Pagead2.googlesyndication.com and 12% (5 requests) were made to Tpc.googlesyndication.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Taidanh.edu.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 328.0 kB (59%)

Content Size

555.1 kB

After Optimization

227.1 kB

In fact, the total size of Taidanh.edu.vn main page is 555.1 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. 50% of websites need less resources to load. Javascripts take 368.8 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 100.4 kB

  • Original 122.3 kB
  • After minification 111.2 kB
  • After compression 21.9 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. 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 100.4 kB or 82% of the original size.

Image Optimization

-33%

Potential reduce by 13.8 kB

  • Original 41.9 kB
  • After minification 28.2 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, Taidanh needs image optimization as it can save up to 13.8 kB or 33% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-53%

Potential reduce by 197.0 kB

  • Original 368.8 kB
  • After minification 365.9 kB
  • After compression 171.8 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 197.0 kB or 53% of the original size.

CSS Optimization

-76%

Potential reduce by 16.8 kB

  • Original 22.0 kB
  • After minification 21.9 kB
  • After compression 5.2 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. Taidanh.edu.vn needs all CSS files to be minified and compressed as it can save up to 16.8 kB or 76% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (53%)

Requests Now

40

After Optimization

19

The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Taidanh. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

taidanh.edu.vn accessibility score

60

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

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

Links do not have a discernible name

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

The document uses <meta http-equiv="refresh">

High

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

Best Practices

taidanh.edu.vn best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

taidanh.edu.vn SEO score

89

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

robots.txt is not valid

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EL

  • Language Claimed

    VI

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Taidanh.edu.vn can be misinterpreted by Google and other search engines. Our service has detected that Greek is used on the page, and it does not match the claimed Vietnamese language. Our system also found out that Taidanh.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

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