Report Summary

  • 23

    Performance

    Renders faster than
    42% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 43% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 91

    SEO

    Google-friendlier than
    71% of websites

cesacom.fr

Cesacom - Ecole de communication en alternance

Page Load Speed

13.7 sec in total

First Response

549 ms

Resources Loaded

8.1 sec

Page Rendered

5.1 sec

cesacom.fr screenshot

About Website

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

Le Cesacom est un école de communication à Paris, Nantes et Lille reconnue pour son enseignement pratique qui valorise la créativité !

Visit cesacom.fr

Key Findings

We analyzed Cesacom.fr page load time and found that the first response time was 549 ms and then it took 13.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

cesacom.fr performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

8/100

10%

LCP (Largest Contentful Paint)

Value9.1 s

1/100

25%

SI (Speed Index)

Value9.9 s

9/100

10%

TBT (Total Blocking Time)

Value1,310 ms

18/100

30%

CLS (Cumulative Layout Shift)

Value0.038

100/100

15%

TTI (Time to Interactive)

Value16.9 s

5/100

10%

Network Requests Diagram

cesacom.fr

549 ms

css

24 ms

bootstrap.min.css

632 ms

flexslider.css

308 ms

venobox.css

321 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that 87% of them (40 requests) were addressed to the original Cesacom.fr, 4% (2 requests) were made to Google-analytics.com and 2% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (7.5 sec) belongs to the original domain Cesacom.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 368.1 kB (3%)

Content Size

14.5 MB

After Optimization

14.1 MB

In fact, the total size of Cesacom.fr main page is 14.5 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. 40% of websites need less resources to load. Images take 14.0 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 33.9 kB

  • Original 40.4 kB
  • After minification 30.4 kB
  • After compression 6.5 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 10.0 kB, which is 25% 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 33.9 kB or 84% of the original size.

Image Optimization

-0%

Potential reduce by 5.5 kB

  • Original 14.0 MB
  • After minification 14.0 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. Cesacom images are well optimized though.

JavaScript Optimization

-62%

Potential reduce by 120.4 kB

  • Original 193.6 kB
  • After minification 191.2 kB
  • After compression 73.2 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 120.4 kB or 62% of the original size.

CSS Optimization

-86%

Potential reduce by 208.3 kB

  • Original 243.5 kB
  • After minification 204.6 kB
  • After compression 35.2 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. Cesacom.fr needs all CSS files to be minified and compressed as it can save up to 208.3 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (40%)

Requests Now

43

After Optimization

26

The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cesacom. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

cesacom.fr accessibility score

76

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

cesacom.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

cesacom.fr SEO score

91

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

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 Cesacom.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 Cesacom.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 Cesacom. 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: