Report Summary

  • 99

    Performance

    Renders faster than
    96% of other websites

  • 52

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

thanhdat.vn

Default Web Site Page

Page Load Speed

1.7 sec in total

First Response

263 ms

Resources Loaded

1.3 sec

Page Rendered

151 ms

thanhdat.vn screenshot

About Website

Welcome to thanhdat.vn homepage info - get ready to check Thanhdat best content right away, or after learning these important things about thanhdat.vn

Visit thanhdat.vn

Key Findings

We analyzed Thanhdat.vn page load time and found that the first response time was 263 ms and then it took 1.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

thanhdat.vn performance score

99

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.8 s

100/100

10%

LCP (Largest Contentful Paint)

Value0.8 s

100/100

25%

SI (Speed Index)

Value0.8 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.096

91/100

15%

TTI (Time to Interactive)

Value0.8 s

100/100

10%

Network Requests Diagram

thanhdat.vn

263 ms

reset.css

112 ms

style.css

163 ms

css

22 ms

jquery.1.7.2.min.js

416 ms

Our browser made a total of 13 requests to load all elements on the main page. We found that 85% of them (11 requests) were addressed to the original Thanhdat.vn, 8% (1 request) were made to Fonts.googleapis.com and 8% (1 request) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (609 ms) belongs to the original domain Thanhdat.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 153.0 kB (27%)

Content Size

573.4 kB

After Optimization

420.4 kB

In fact, the total size of Thanhdat.vn main page is 573.4 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. 15% of websites need less resources to load. Images take 412.2 kB which makes up the majority of the site volume.

HTML Optimization

-51%

Potential reduce by 840 B

  • Original 1.6 kB
  • After minification 1.6 kB
  • After compression 794 B

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 840 B or 51% of the original size.

Image Optimization

-10%

Potential reduce by 39.7 kB

  • Original 412.2 kB
  • After minification 372.5 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. Thanhdat images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 110.1 kB

  • Original 156.0 kB
  • After minification 140.3 kB
  • After compression 45.9 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 110.1 kB or 71% of the original size.

CSS Optimization

-66%

Potential reduce by 2.3 kB

  • Original 3.6 kB
  • After minification 3.1 kB
  • After compression 1.2 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. Thanhdat.vn needs all CSS files to be minified and compressed as it can save up to 2.3 kB or 66% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (27%)

Requests Now

11

After Optimization

8

The browser has sent 11 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Thanhdat. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

thanhdat.vn accessibility score

52

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.

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

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

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

thanhdat.vn best practices score

83

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

Serves images with low resolution

SEO Factors

thanhdat.vn SEO score

83

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

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

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Thanhdat.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 Thanhdat.vn main page’s claimed encoding is . Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

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