Report Summary

  • 37

    Performance

    Renders faster than
    57% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 50% of websites

  • 77

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

formation-paris.cnam.fr

300 parcours de formation de Bac à Bac+8 à Paris - Accueil | Paris | Cnam

Page Load Speed

5.9 sec in total

First Response

1.2 sec

Resources Loaded

4.5 sec

Page Rendered

221 ms

formation-paris.cnam.fr screenshot

About Website

Click here to check amazing Formation Paris Cnam content for France. Otherwise, check out these important facts you probably never knew about formation-paris.cnam.fr

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Key Findings

We analyzed Formation-paris.cnam.fr page load time and found that the first response time was 1.2 sec and then it took 4.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

formation-paris.cnam.fr performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

54/100

10%

LCP (Largest Contentful Paint)

Value8.6 s

2/100

25%

SI (Speed Index)

Value9.0 s

15/100

10%

TBT (Total Blocking Time)

Value520 ms

56/100

30%

CLS (Cumulative Layout Shift)

Value0.178

68/100

15%

TTI (Time to Interactive)

Value10.1 s

26/100

10%

Network Requests Diagram

1300-formations-et-300-diplomes-de-bac-a-bac-8-a-paris-accueil-175601.kjsp

1172 ms

boutons-acces.css

327 ms

respond.min.js

347 ms

screenstyles.css

435 ms

scripts_admin.js

793 ms

Our browser made a total of 61 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Formation-paris.cnam.fr, 7% (4 requests) were made to Google-analytics.com and 2% (1 request) were made to Wysistat.com. The less responsive or slowest element that took the longest time to load (1.9 sec) relates to the external source Cnam-paris.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (36%)

Content Size

3.0 MB

After Optimization

1.9 MB

In fact, the total size of Formation-paris.cnam.fr main page is 3.0 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. 25% of websites need less resources to load. Images take 2.7 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 26.6 kB

  • Original 35.1 kB
  • After minification 31.6 kB
  • After compression 8.4 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 26.6 kB or 76% of the original size.

Image Optimization

-33%

Potential reduce by 881.5 kB

  • Original 2.7 MB
  • After minification 1.8 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. Obviously, Formation Paris Cnam needs image optimization as it can save up to 881.5 kB or 33% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-62%

Potential reduce by 160.0 kB

  • Original 256.2 kB
  • After minification 253.0 kB
  • After compression 96.2 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 160.0 kB or 62% of the original size.

CSS Optimization

-75%

Potential reduce by 6.1 kB

  • Original 8.1 kB
  • After minification 5.7 kB
  • After compression 2.0 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. Formation-paris.cnam.fr needs all CSS files to be minified and compressed as it can save up to 6.1 kB or 75% of the original size.

Requests Breakdown

Number of requests can be reduced by 27 (47%)

Requests Now

58

After Optimization

31

The browser has sent 58 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Formation Paris Cnam. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

formation-paris.cnam.fr accessibility score

80

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

formation-paris.cnam.fr best practices score

77

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Uses deprecated APIs

High

Missing source maps for large first-party JavaScript

SEO Factors

formation-paris.cnam.fr SEO score

90

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

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Formation-paris.cnam.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 Formation-paris.cnam.fr main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

Open Graph description is not detected on the main page of Formation Paris Cnam. 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: