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w3.tn screenshot

Report Summary

  • 85

    Performance

    Renders faster than
    89% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 54

    SEO

    Google-friendlier than
    19% of websites

w3.tn

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Page Load Speed

2.4 sec in total

First Response

711 ms

Resources Loaded

1.5 sec

Page Rendered

153 ms

w3.tn screenshot

About Website

Click here to check amazing W 3 content. Otherwise, check out these important facts you probably never knew about w3.tn

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Key Findings

We analyzed W3.tn page load time and found that the first response time was 711 ms and then it took 1.6 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

w3.tn performance score

85

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

59/100

10%

LCP (Largest Contentful Paint)

Value2.9 s

82/100

25%

SI (Speed Index)

Value3.9 s

83/100

10%

TBT (Total Blocking Time)

Value210 ms

88/100

30%

CLS (Cumulative Layout Shift)

Value0.073

95/100

15%

TTI (Time to Interactive)

Value3.3 s

94/100

10%

Network Requests Diagram

w3.tn

711 ms

c5.css

409 ms

site_photoref.jpg

463 ms

site_photoexa.jpg

464 ms

site_photoqe.jpg

465 ms

Our browser made a total of 9 requests to load all elements on the main page. We found that all of those requests were addressed to W3.tn and no external sources were called. The less responsive or slowest element that took the longest time to load (711 ms) belongs to the original domain W3.tn.

Page Optimization Overview & Recommendations

Page size can be reduced by 36.5 kB (60%)

Content Size

60.3 kB

After Optimization

23.8 kB

  • HTML
  • Images
  • CSS

In fact, the total size of W3.tn main page is 60.3 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 5% of websites need less resources to load. CSS take 23.3 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 16.5 kB

  • Original 21.2 kB
  • After minification 21.2 kB
  • After compression 4.7 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 16.5 kB or 78% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 15.8 kB
  • After minification 15.8 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. W 3 images are well optimized though.

CSS Optimization

-86%

Potential reduce by 20.0 kB

  • Original 23.3 kB
  • After minification 15.5 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. W3.tn needs all CSS files to be minified and compressed as it can save up to 20.0 kB or 86% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

8

After Optimization

8

  • Images
  • CSS

The browser has sent 8 CSS, Javascripts, AJAX and image requests in order to completely render the main page of W 3. According to our analytics all requests are already optimized.

Network Requests Diagram

w3.tn

w3.tn

711 ms

c5.css

c5.css

409 ms

site_photoref.jpg

site_photoref.jpg

463 ms

site_photoexa.jpg

site_photoexa.jpg

464 ms

site_photoqe.jpg

site_photoqe.jpg

465 ms

holder.gif

holder.gif

218 ms

wrapper.gif

wrapper.gif

240 ms

head_index.gif

head_index.gif

280 ms

bg.gif

bg.gif

361 ms

Accessibility Review

w3.tn accessibility score

75

Accessibility Issues

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

w3.tn best practices score

67

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

w3.tn SEO score

54

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Page is blocked from indexing

High

robots.txt is not valid

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

    FR

  • Language Claimed

    ZH

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise W3.tn can be misinterpreted by Google and other search engines. Our service has detected that French is used on the page, and it does not match the claimed Chinese language. Our system also found out that W3.tn main page’s claimed encoding is gb2312. 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

w3.tn

Open Graph description is not detected on the main page of W 3. 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: