Report Summary

  • 57

    Performance

    Renders faster than
    73% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 98% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    65% of websites

  • 99

    SEO

    Google-friendlier than
    95% of websites

developpement-durable.gouv.fr

Accueil | Ministères Écologie Énergie Territoires

Page Load Speed

3.1 sec in total

First Response

282 ms

Resources Loaded

2.6 sec

Page Rendered

270 ms

developpement-durable.gouv.fr screenshot

About Website

Welcome to developpement-durable.gouv.fr homepage info - get ready to check Developpement Durable best content for France right away, or after learning these important things about developpement-durable.gouv.fr

Bienvenue sur le site des ministères Écologie Énergie Territoires : actualités, presse, organisation et politiques publiques !

Visit developpement-durable.gouv.fr

Key Findings

We analyzed Developpement-durable.gouv.fr page load time and found that the first response time was 282 ms and then it took 2.8 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

developpement-durable.gouv.fr performance score

57

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

40/100

10%

LCP (Largest Contentful Paint)

Value7.7 s

3/100

25%

SI (Speed Index)

Value5.4 s

57/100

10%

TBT (Total Blocking Time)

Value200 ms

90/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value8.1 s

41/100

10%

Network Requests Diagram

developpement-durable.gouv.fr

282 ms

www.developpement-durable.gouv.fr

585 ms

style_ancre.css

160 ms

style.css

248 ms

stylePRINT.css

166 ms

Our browser made a total of 113 requests to load all elements on the main page. We found that 81% of them (91 requests) were addressed to the original Developpement-durable.gouv.fr, 4% (5 requests) were made to Pbs.twimg.com and 4% (4 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (931 ms) relates to the external source Meteofrance.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (21%)

Content Size

5.2 MB

After Optimization

4.1 MB

In fact, the total size of Developpement-durable.gouv.fr main page is 5.2 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 70% of websites need less resources to load. Images take 4.0 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 69.9 kB

  • Original 88.4 kB
  • After minification 68.7 kB
  • After compression 18.5 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 19.7 kB, which is 22% 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 69.9 kB or 79% of the original size.

Image Optimization

-6%

Potential reduce by 230.1 kB

  • Original 4.0 MB
  • After minification 3.8 MB

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. Developpement Durable images are well optimized though.

JavaScript Optimization

-72%

Potential reduce by 533.0 kB

  • Original 737.6 kB
  • After minification 652.6 kB
  • After compression 204.7 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 533.0 kB or 72% of the original size.

CSS Optimization

-84%

Potential reduce by 275.5 kB

  • Original 327.8 kB
  • After minification 280.1 kB
  • After compression 52.4 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. Developpement-durable.gouv.fr needs all CSS files to be minified and compressed as it can save up to 275.5 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 53 (48%)

Requests Now

110

After Optimization

57

The browser has sent 110 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Developpement Durable. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 28 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

developpement-durable.gouv.fr accessibility score

100

Accessibility Issues

Best Practices

developpement-durable.gouv.fr best practices score

83

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

High

Missing source maps for large first-party JavaScript

SEO Factors

developpement-durable.gouv.fr SEO score

99

Search Engine Optimization Advices

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

    FR

  • Language Claimed

    FR

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Developpement-durable.gouv.fr can be misinterpreted by Google and other search engines. Our service has detected that French is used on the page, and it matches the claimed language. Our system also found out that Developpement-durable.gouv.fr 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 description is not detected on the main page of Developpement Durable. 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: