Tools & Wizards About Us

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

4im.fr

Alternance ou Initiale à Institut G4 - Formation en Informatique/ Web

Page Load Speed

5.5 sec in total

First Response

419 ms

Resources Loaded

4.2 sec

Page Rendered

849 ms

About Website

Visit 4im.fr now to see the best up-to-date 4 Im content for France and also check out these interesting facts you probably never knew about 4im.fr

École Supérieure Numérique en Alternance et à Double Compétence : Informatique et Managériale. Toutes nos Formations de BAC à BAC+5 sont disponibles en Alternance. Bachelor Numérique/Web (BAC+2) et C...

Visit 4im.fr

Key Findings

We analyzed 4im.fr page load time and found that the first response time was 419 ms and then it took 5.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

4im.fr performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.1 s

3/100

10%

LCP (Largest Contentful Paint)

Value16.8 s

0/100

25%

SI (Speed Index)

Value12.9 s

2/100

10%

TBT (Total Blocking Time)

Value2,070 ms

7/100

30%

CLS (Cumulative Layout Shift)

Value0.08

94/100

15%

TTI (Time to Interactive)

Value18.6 s

3/100

10%

Network Requests Diagram

4im.fr

419 ms

www.institut-g4.fr

511 ms

style.min.css

160 ms

styles.css

236 ms

front.min.css

239 ms

Our browser made a total of 113 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original 4im.fr, 74% (84 requests) were made to Institut-g4.fr and 7% (8 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.2 sec) relates to the external source Institut-g4.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 367.5 kB (7%)

Content Size

5.3 MB

After Optimization

4.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 4im.fr main page is 5.3 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 4.3 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 171.6 kB

  • Original 203.0 kB
  • After minification 199.5 kB
  • After compression 31.4 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 171.6 kB or 85% of the original size.

Image Optimization

-3%

Potential reduce by 110.3 kB

  • Original 4.3 MB
  • After minification 4.2 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. 4 Im images are well optimized though.

JavaScript Optimization

-15%

Potential reduce by 77.0 kB

  • Original 520.8 kB
  • After minification 520.8 kB
  • After compression 443.7 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 77.0 kB or 15% of the original size.

CSS Optimization

-4%

Potential reduce by 8.5 kB

  • Original 192.1 kB
  • After minification 192.1 kB
  • After compression 183.6 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. 4im.fr has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 60 (60%)

Requests Now

100

After Optimization

40

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 100 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 4 Im. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 34 to 1 for JavaScripts and from 23 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

4im.fr accessibility score

93

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.

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

Links do not have a discernible name

Best Practices

4im.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

4im.fr SEO score

98

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 4im.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 4im.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 4 Im. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: