Report Summary

  • 73

    Performance

    Renders faster than
    82% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

ile-de-france.ademe.fr

L'ADEME Île-de-France - Agence de la transition écologique

Page Load Speed

3.3 sec in total

First Response

630 ms

Resources Loaded

2.4 sec

Page Rendered

258 ms

ile-de-france.ademe.fr screenshot

About Website

Visit ile-de-france.ademe.fr now to see the best up-to-date Ile De France ADEME content for France and also check out these interesting facts you probably never knew about ile-de-france.ademe.fr

Implantée à la Défense, l’ADEME Île-de-France accompagne tous les acteurs du territoire pour lutter contre le changement climatique et maîtriser les consommations de ressources.

Visit ile-de-france.ademe.fr

Key Findings

We analyzed Ile-de-france.ademe.fr page load time and found that the first response time was 630 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

ile-de-france.ademe.fr performance score

73

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

36/100

10%

LCP (Largest Contentful Paint)

Value3.7 s

58/100

25%

SI (Speed Index)

Value4.6 s

71/100

10%

TBT (Total Blocking Time)

Value90 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.126

83/100

15%

TTI (Time to Interactive)

Value6.5 s

58/100

10%

Network Requests Diagram

ile-de-france.ademe.fr

630 ms

css_587e407973ea12bcccbe65f72d183966.css

324 ms

css_4330bfc9ae4dc34d95de536de5c883b1.css

568 ms

logo.gif

167 ms

ADEMEWEBNB.jpg

168 ms

Our browser made a total of 60 requests to load all elements on the main page. We found that 63% of them (38 requests) were addressed to the original Ile-de-france.ademe.fr, 10% (6 requests) were made to O.twimg.com and 7% (4 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (973 ms) belongs to the original domain Ile-de-france.ademe.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 314.2 kB (33%)

Content Size

950.1 kB

After Optimization

635.9 kB

In fact, the total size of Ile-de-france.ademe.fr main page is 950.1 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. 35% of websites need less resources to load. Images take 644.4 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 24.8 kB

  • Original 32.7 kB
  • After minification 29.5 kB
  • After compression 8.0 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 24.8 kB or 76% of the original size.

Image Optimization

-14%

Potential reduce by 89.5 kB

  • Original 644.4 kB
  • After minification 554.8 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. Obviously, Ile De France ADEME needs image optimization as it can save up to 89.5 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-60%

Potential reduce by 71.0 kB

  • Original 117.5 kB
  • After minification 100.5 kB
  • After compression 46.5 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 71.0 kB or 60% of the original size.

CSS Optimization

-83%

Potential reduce by 128.9 kB

  • Original 155.5 kB
  • After minification 152.0 kB
  • After compression 26.5 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. Ile-de-france.ademe.fr needs all CSS files to be minified and compressed as it can save up to 128.9 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 25 (42%)

Requests Now

59

After Optimization

34

The browser has sent 59 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ile De France ADEME. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

ile-de-france.ademe.fr accessibility score

100

Accessibility Issues

Best Practices

ile-de-france.ademe.fr best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

ile-de-france.ademe.fr SEO score

100

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

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 Ile-de-france.ademe.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 Ile-de-france.ademe.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 Ile De France ADEME. 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: