Tools & Wizards About Us

Report Summary

  • 94

    Performance

    Renders faster than
    93% of other websites

  • 43

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

datas.ch

Agence de presse DATAS : datas.ch, agence de presse spécialisée - enquêtes et reportages

Page Load Speed

1.8 sec in total

First Response

552 ms

Resources Loaded

961 ms

Page Rendered

311 ms

About Website

Click here to check amazing DATAS content. Otherwise, check out these important facts you probably never knew about datas.ch

DATAS - agence de presse francophone. L'agence DATAS a été créée en 2004 par Gilles Labarthe et Philippe de Rougemont. DATAS représente la seule agence de presse indépendante en Suisse romande spécial...

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Key Findings

We analyzed Datas.ch page load time and found that the first response time was 552 ms and then it took 1.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

datas.ch performance score

94

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)

Value1.3 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.213

58/100

15%

TTI (Time to Interactive)

Value0.8 s

100/100

10%

Network Requests Diagram

datas.ch

552 ms

style.css

104 ms

title.gif

206 ms

title2.gif

206 ms

livre_tumb_colg.jpg

207 ms

Our browser made a total of 12 requests to load all elements on the main page. We found that all of those requests were addressed to Datas.ch and no external sources were called. The less responsive or slowest element that took the longest time to load (552 ms) belongs to the original domain Datas.ch.

Page Optimization Overview & Recommendations

Page size can be reduced by 37.6 kB (28%)

Content Size

136.7 kB

After Optimization

99.1 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Datas.ch main page is 136.7 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. Images take 102.2 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 26.5 kB

  • Original 34.1 kB
  • After minification 26.0 kB
  • After compression 7.5 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. This page needs HTML code to be minified as it can gain 8.1 kB, which is 24% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 26.5 kB or 78% of the original size.

Image Optimization

-11%

Potential reduce by 11.0 kB

  • Original 102.2 kB
  • After minification 91.2 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, DATAS needs image optimization as it can save up to 11.0 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-13%

Potential reduce by 46 B

  • Original 360 B
  • After minification 360 B
  • After compression 314 B

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. Datas.ch needs all CSS files to be minified and compressed as it can save up to 46 B or 13% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

11

After Optimization

11

  • Images
  • CSS

The browser has sent 11 CSS, Javascripts, AJAX and image requests in order to completely render the main page of DATAS. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

datas.ch accessibility score

43

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

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

datas.ch 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

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

datas.ch SEO score

67

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

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    FR

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Datas.ch can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is French. Our system also found out that Datas.ch main page’s claimed encoding is iso-8859-1. 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 DATAS. 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: