Tools & Wizards About Us

Report Summary

  • 31

    Performance

    Renders faster than
    51% of other websites

  • 61

    Accessibility

    Visual factors better than
    that of 27% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 76

    SEO

    Google-friendlier than
    35% of websites

mathsbook.fr

Cours de maths en ligne, exercices de maths corrigés | Mathsbook

Page Load Speed

3.6 sec in total

First Response

259 ms

Resources Loaded

2.9 sec

Page Rendered

441 ms

About Website

Click here to check amazing Mathsbook content for Morocco. Otherwise, check out these important facts you probably never knew about mathsbook.fr

Soutien scolaire en maths sur internet de la 6ème à la terminale : cours de maths, exercices interactifs, vidéos, Bac et Brevet pour progresser à son rythme.

Visit mathsbook.fr

Key Findings

We analyzed Mathsbook.fr page load time and found that the first response time was 259 ms and then it took 3.3 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

mathsbook.fr performance score

31

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

27/100

10%

LCP (Largest Contentful Paint)

Value4.5 s

38/100

25%

SI (Speed Index)

Value7.8 s

23/100

10%

TBT (Total Blocking Time)

Value2,470 ms

4/100

30%

CLS (Cumulative Layout Shift)

Value0.01

100/100

15%

TTI (Time to Interactive)

Value19.4 s

2/100

10%

Network Requests Diagram

mathsbook.fr

259 ms

mathsbook.fr

345 ms

www.mathsbook.fr

374 ms

stylemaths.css

386 ms

jquery.min.js

25 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 51% of them (30 requests) were addressed to the original Mathsbook.fr, 8% (5 requests) were made to Youtube.com and 5% (3 requests) were made to Connect.facebook.net. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Mathsbook.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 41.9 kB (5%)

Content Size

894.5 kB

After Optimization

852.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Mathsbook.fr main page is 894.5 kB. 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. Javascripts take 543.1 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 30.3 kB

  • Original 41.4 kB
  • After minification 41.4 kB
  • After compression 11.1 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 30.3 kB or 73% of the original size.

Image Optimization

-4%

Potential reduce by 8.1 kB

  • Original 220.4 kB
  • After minification 212.3 kB

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. Mathsbook images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 3.5 kB

  • Original 543.1 kB
  • After minification 543.1 kB
  • After compression 539.6 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

-0%

Potential reduce by 41 B

  • Original 89.6 kB
  • After minification 89.6 kB
  • After compression 89.5 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. Mathsbook.fr has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 27 (51%)

Requests Now

53

After Optimization

26

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Mathsbook. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

mathsbook.fr accessibility score

61

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

Links do not have a discernible name

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

mathsbook.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

mathsbook.fr SEO score

76

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

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Mathsbook.fr can be misinterpreted by Google and other search engines. Our service has detected that French is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Mathsbook.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 Mathsbook. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: