Tools & Wizards About Us
jdecool.fr screenshot

Report Summary

  • 99

    Performance

    Renders faster than
    96% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 95

    SEO

    Google-friendlier than
    90% of websites

jdecool.fr

Jérémy DECOOL (@jdecool), Ingénieur Etudes et Développement à Lyon

Page Load Speed

965 ms in total

First Response

179 ms

Resources Loaded

716 ms

Page Rendered

70 ms

jdecool.fr screenshot

About Website

Welcome to jdecool.fr homepage info - get ready to check J DECOOL best content for Togo right away, or after learning these important things about jdecool.fr

Jérémy DECOOL, Ingénieur Etudes et Développement à Lyon

Visit jdecool.fr

Key Findings

We analyzed Jdecool.fr page load time and found that the first response time was 179 ms and then it took 786 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

jdecool.fr performance score

99

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.4 s

97/100

10%

LCP (Largest Contentful Paint)

Value1.7 s

99/100

25%

SI (Speed Index)

Value1.4 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.4 s

100/100

10%

Network Requests Diagram

jdecool.fr

179 ms

www.jdecool.fr

34 ms

style.css

17 ms

pirsch.js

505 ms

twitter-32.png

29 ms

Our browser made a total of 12 requests to load all elements on the main page. We found that 92% of them (11 requests) were addressed to the original Jdecool.fr, 8% (1 request) were made to Api.pirsch.io. The less responsive or slowest element that took the longest time to load (505 ms) relates to the external source Api.pirsch.io.

Page Optimization Overview & Recommendations

Page size can be reduced by 6.5 kB (18%)

Content Size

36.8 kB

After Optimization

30.4 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Jdecool.fr main page is 36.8 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. Images take 27.6 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 6.0 kB

  • Original 7.7 kB
  • After minification 6.4 kB
  • After compression 1.7 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. This page needs HTML code to be minified as it can gain 1.3 kB, which is 17% 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 6.0 kB or 78% of the original size.

Image Optimization

-1%

Potential reduce by 411 B

  • Original 27.6 kB
  • After minification 27.1 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. J DECOOL images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 24 B

  • Original 1.6 kB
  • After minification 1.6 kB
  • After compression 1.6 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. This website has mostly compressed JavaScripts.

Requests Breakdown

We found no issues to fix!

Requests Now

10

After Optimization

10

  • Images
  • JavaScript
  • CSS

The browser has sent 10 CSS, Javascripts, AJAX and image requests in order to completely render the main page of J DECOOL. According to our analytics all requests are already optimized.

Network Requests Diagram

jdecool.fr

jdecool.fr

179 ms

www.jdecool.fr

www.jdecool.fr

34 ms

style.css

style.css

17 ms

pirsch.js

pirsch.js

505 ms

twitter-32.png

twitter-32.png

29 ms

mastodon-32.png

mastodon-32.png

22 ms

bsky-32.png

bsky-32.png

41 ms

github-32.png

github-32.png

23 ms

linkedin-32.png

linkedin-32.png

36 ms

highlight.min.js

highlight.min.js

51 ms

highlightjs.gherkin.min.js

highlightjs.gherkin.min.js

29 ms

jdecool.jpg

jdecool.jpg

39 ms

Accessibility Review

jdecool.fr accessibility score

96

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.

Best Practices

jdecool.fr 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

jdecool.fr SEO score

95

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 Jdecool.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 Jdecool.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

jdecool.fr

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