Tools & Wizards About Us
cesi-alternance.fr screenshot

Report Summary

  • 90

    Performance

    Renders faster than
    91% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 92% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

cesi-alternance.fr

CESI École Supérieure de l'Alternance : du bac+2 au bac+5

Page Load Speed

4.1 sec in total

First Response

273 ms

Resources Loaded

3.5 sec

Page Rendered

325 ms

cesi-alternance.fr screenshot

About Website

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

Rejoignez CESI l'École supérieure de l'alternance et intégrez l'une de nos formations en alternance accessible dans nos 25 campus à travers la France.

Visit cesi-alternance.fr

Key Findings

We analyzed Cesi-alternance.fr page load time and found that the first response time was 273 ms and then it took 3.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

cesi-alternance.fr performance score

90

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

73/100

10%

LCP (Largest Contentful Paint)

Value3.0 s

77/100

25%

SI (Speed Index)

Value3.4 s

89/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.007

100/100

15%

TTI (Time to Interactive)

Value3.5 s

92/100

10%

Network Requests Diagram

cesi-alternance.fr

273 ms

www.cesi-alternance.fr

474 ms

knacss.css

87 ms

style.css

167 ms

jquery.min.js

68 ms

Our browser made a total of 140 requests to load all elements on the main page. We found that 39% of them (54 requests) were addressed to the original Cesi-alternance.fr, 21% (30 requests) were made to Pbs.twimg.com and 14% (20 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (514 ms) relates to the external source Static.xx.fbcdn.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 567.3 kB (30%)

Content Size

1.9 MB

After Optimization

1.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cesi-alternance.fr main page is 1.9 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. 65% of websites need less resources to load. Images take 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 42.1 kB

  • Original 54.2 kB
  • After minification 49.1 kB
  • After compression 12.1 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 42.1 kB or 78% of the original size.

Image Optimization

-1%

Potential reduce by 6.1 kB

  • Original 1.0 MB
  • After minification 1.0 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. CESI Alternance images are well optimized though.

JavaScript Optimization

-58%

Potential reduce by 320.5 kB

  • Original 552.8 kB
  • After minification 549.4 kB
  • After compression 232.3 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 320.5 kB or 58% of the original size.

CSS Optimization

-85%

Potential reduce by 198.6 kB

  • Original 232.9 kB
  • After minification 218.5 kB
  • After compression 34.3 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. Cesi-alternance.fr needs all CSS files to be minified and compressed as it can save up to 198.6 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 71 (52%)

Requests Now

136

After Optimization

65

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 136 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CESI Alternance. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 41 to 1 for JavaScripts and from 18 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

cesi-alternance.fr

cesi-alternance.fr

273 ms

www.cesi-alternance.fr

www.cesi-alternance.fr

474 ms

knacss.css

knacss.css

87 ms

style.css

style.css

167 ms

jquery.min.js

jquery.min.js

68 ms

ogh8hjm.js

ogh8hjm.js

235 ms

modernizr.custom.js

modernizr.custom.js

234 ms

imgLiquid-min.js

imgLiquid-min.js

235 ms

owl.carousel.min.js

owl.carousel.min.js

235 ms

styles.css

styles.css

242 ms

form.min.css

form.min.css

321 ms

quick-chat.css

quick-chat.css

242 ms

jquery.js

jquery.js

467 ms

jquery-migrate.min.js

jquery-migrate.min.js

310 ms

jquery.bxslider.min.js

jquery.bxslider.min.js

309 ms

ja_slideshow.js

ja_slideshow.js

317 ms

owl.carousel.css

owl.carousel.css

320 ms

owl.theme.css

owl.theme.css

384 ms

owl.transitions.css

owl.transitions.css

383 ms

conversion.js

conversion.js

46 ms

function.js

function.js

390 ms

jquery.form.min.js

jquery.form.min.js

390 ms

scripts.js

scripts.js

396 ms

jquery.c00kie.js

jquery.c00kie.js

455 ms

quick-chat-load.js

quick-chat-load.js

455 ms

wp-embed.min.js

wp-embed.min.js

466 ms

style.min.css

style.min.css

321 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

118 ms

gpt.js

gpt.js

87 ms

logo-cesi-alternance.gif

logo-cesi-alternance.gif

244 ms

resultats-enquete-CESI-IPSOS.gif

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244 ms

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245 ms

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shadow-start.gif

244 ms

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241 ms

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pointer-info-num.png

250 ms

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333 ms

pointer-rh.png

pointer-rh.png

331 ms

pointer-industrie-service.png

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332 ms

shadow-end.gif

shadow-end.gif

333 ms

pointer-bottom.png

pointer-bottom.png

332 ms

informatique.jpg

informatique.jpg

420 ms

industrie.jpg

industrie.jpg

423 ms

rh.jpg

rh.jpg

420 ms

btp.jpg

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488 ms

shadow-footer.gif

shadow-footer.gif

420 ms

icomoon.woff

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371 ms

pubads_impl_82.js

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227 ms

widgets.js

widgets.js

312 ms

sdk.js

sdk.js

429 ms

analytics.js

analytics.js

261 ms

jquery.placeholder.min.js

jquery.placeholder.min.js

241 ms

89 ms

container.html

container.html

59 ms

pixel

pixel

31 ms

collect

collect

24 ms

match-result

match-result

6 ms

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28 ms

syndication

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112 ms

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243 ms

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92 ms

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288 ms

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small.css

83 ms

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84 ms

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32 ms

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38 ms

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31 ms

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115 ms

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10 ms

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50 ms

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115 ms

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113 ms

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87 ms

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107 ms

lazyload.1.0.4.min.js

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116 ms

like_box.php

like_box.php

325 ms

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9 ms

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Accessibility Review

cesi-alternance.fr accessibility score

97

Accessibility Issues

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

cesi-alternance.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

cesi-alternance.fr SEO score

83

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

High

robots.txt is not valid

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 Cesi-alternance.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 Cesi-alternance.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

cesi-alternance.fr

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