Report Summary

  • 9

    Performance

    Renders faster than
    23% of other websites

  • 65

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

isat.fr

ISAT - Ecole d'ingénieurs automobile, aéronautique et transports

Page Load Speed

4.3 sec in total

First Response

282 ms

Resources Loaded

3.7 sec

Page Rendered

302 ms

isat.fr screenshot

About Website

Click here to check amazing ISAT content for France. Otherwise, check out these important facts you probably never knew about isat.fr

Devenez ingénieur ISAT, la seule école d'ingénieurs publique française dans l'automobile intelligente, l'aéronautique et les transports

Visit isat.fr

Key Findings

We analyzed Isat.fr page load time and found that the first response time was 282 ms and then it took 4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

isat.fr performance score

9

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.9 s

10/100

10%

LCP (Largest Contentful Paint)

Value19.4 s

0/100

25%

SI (Speed Index)

Value10.2 s

9/100

10%

TBT (Total Blocking Time)

Value3,090 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.278

44/100

15%

TTI (Time to Interactive)

Value23.8 s

1/100

10%

Network Requests Diagram

isat.fr

282 ms

isat.fr

581 ms

simple-line-icons.css

22 ms

k2.css

92 ms

jcemediabox.css

183 ms

Our browser made a total of 103 requests to load all elements on the main page. We found that 75% of them (77 requests) were addressed to the original Isat.fr, 6% (6 requests) were made to Youtube.com and 4% (4 requests) were made to Jnn-pa.googleapis.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Isat.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 171.1 kB (6%)

Content Size

3.0 MB

After Optimization

2.9 MB

In fact, the total size of Isat.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. Only a small number of websites need less resources to load. Images take 2.4 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 38.4 kB

  • Original 48.5 kB
  • After minification 43.6 kB
  • After compression 10.0 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 38.4 kB or 79% of the original size.

Image Optimization

-4%

Potential reduce by 104.2 kB

  • Original 2.4 MB
  • After minification 2.3 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. ISAT images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 13.1 kB

  • Original 409.2 kB
  • After minification 408.2 kB
  • After compression 396.1 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.

CSS Optimization

-10%

Potential reduce by 15.3 kB

  • Original 152.4 kB
  • After minification 152.0 kB
  • After compression 137.1 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. Isat.fr has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 59 (61%)

Requests Now

96

After Optimization

37

The browser has sent 96 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ISAT. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 29 to 1 for JavaScripts and from 32 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

isat.fr accessibility score

65

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

isat.fr best practices score

75

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

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

isat.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

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Isat.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 Isat.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 ISAT. 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: