Tools & Wizards About Us

Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 86% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

cerl.fr

CERL spécialiste du Transport exceptionnel et du Projet industriel

Page Load Speed

3 sec in total

First Response

357 ms

Resources Loaded

2.4 sec

Page Rendered

228 ms

About Website

Visit cerl.fr now to see the best up-to-date CERL content for France and also check out these interesting facts you probably never knew about cerl.fr

Spécialiste de la logistique et du transport des projets industriels et des colis lourds ou hors gabarit, CERL est le partenaire de tous vos transports

Visit cerl.fr

Key Findings

We analyzed Cerl.fr page load time and found that the first response time was 357 ms and then it took 2.6 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

cerl.fr performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

31/100

10%

LCP (Largest Contentful Paint)

Value4.3 s

42/100

25%

SI (Speed Index)

Value4.6 s

71/100

10%

TBT (Total Blocking Time)

Value540 ms

55/100

30%

CLS (Cumulative Layout Shift)

Value0.439

21/100

15%

TTI (Time to Interactive)

Value8.2 s

40/100

10%

Network Requests Diagram

cerl.fr

357 ms

www.cerl.fr

575 ms

juiz_sps_styles-vfbe66d180952dc9095c93b2c3226d75638f61c8b.css

172 ms

cookieblocker.min.css

265 ms

style.css

266 ms

Our browser made a total of 39 requests to load all elements on the main page. We found that 95% of them (37 requests) were addressed to the original Cerl.fr, 3% (1 request) were made to Ajax.googleapis.com and 3% (1 request) were made to Netdna.bootstrapcdn.com. The less responsive or slowest element that took the longest time to load (798 ms) belongs to the original domain Cerl.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 73.2 kB (13%)

Content Size

572.6 kB

After Optimization

499.4 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Cerl.fr main page is 572.6 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. 30% of websites need less resources to load. Images take 449.5 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 69.3 kB

  • Original 89.0 kB
  • After minification 85.7 kB
  • After compression 19.6 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 69.3 kB or 78% of the original size.

Image Optimization

-1%

Potential reduce by 3.8 kB

  • Original 449.5 kB
  • After minification 445.7 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. CERL images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 0 B

  • Original 34.1 kB
  • After minification 34.1 kB
  • After compression 34.1 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

Number of requests can be reduced by 17 (47%)

Requests Now

36

After Optimization

19

  • Images
  • JavaScript
  • CSS

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CERL. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

cerl.fr accessibility score

95

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.

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

Links do not have a discernible name

Best Practices

cerl.fr 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

High

Browser errors were logged to the console

SEO Factors

cerl.fr SEO score

91

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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 Cerl.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 Cerl.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 data is detected on the main page of CERL. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: