5.2 sec in total
551 ms
3.5 sec
1.2 sec
Visit classes-prepa.fr now to see the best up-to-date Classes Prepa content for France and also check out these interesting facts you probably never knew about classes-prepa.fr
Visit classes-prepa.frWe analyzed Classes-prepa.fr page load time and found that the first response time was 551 ms 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.
classes-prepa.fr performance score
name
value
score
weighting
Value4.5 s
15/100
10%
Value7.7 s
3/100
25%
Value8.1 s
21/100
10%
Value2,000 ms
8/100
30%
Value0.359
30/100
15%
Value12.0 s
16/100
10%
551 ms
310 ms
395 ms
41 ms
87 ms
Our browser made a total of 76 requests to load all elements on the main page. We found that 5% of them (4 requests) were addressed to the original Classes-prepa.fr, 32% (24 requests) were made to Static.xx.fbcdn.net and 11% (8 requests) were made to Scontent.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (738 ms) relates to the external source Wms-eu.amazon-adsystem.com.
Page size can be reduced by 363.7 kB (67%)
538.9 kB
175.2 kB
In fact, the total size of Classes-prepa.fr main page is 538.9 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. 65% of websites need less resources to load. CSS take 232.6 kB which makes up the majority of the site volume.
Potential reduce by 61.2 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. This page needs HTML code to be minified as it can gain 17.6 kB, which is 23% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 61.2 kB or 81% of the original size.
Potential reduce by 905 B
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. Classes Prepa images are well optimized though.
Potential reduce by 107.7 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 107.7 kB or 56% of the original size.
Potential reduce by 193.9 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. Classes-prepa.fr needs all CSS files to be minified and compressed as it can save up to 193.9 kB or 83% of the original size.
Number of requests can be reduced by 41 (55%)
74
33
The browser has sent 74 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Classes Prepa. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.
www.classes-prepa.fr
551 ms
combined.css
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classes-prepa.fr accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
[aria-*] attributes do not match their roles
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
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
<frame> or <iframe> elements do not have a title
classes-prepa.fr best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Page has valid source maps
classes-prepa.fr SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
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
Document uses legible font sizes
FR
FR
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Classes-prepa.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 Classes-prepa.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.
classes-prepa.fr
Open Graph description is not detected on the main page of Classes Prepa. 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: