2.9 sec in total
246 ms
2.4 sec
278 ms
Welcome to polytechnique.fr homepage info - get ready to check Polytechnique best content for France right away, or after learning these important things about polytechnique.fr
L'École polytechnique est une école d'ingénieur qui associe recherche, enseignement et innovation au meilleur niveau scientifique et technologique.
Visit polytechnique.frWe analyzed Polytechnique.fr page load time and found that the first response time was 246 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
polytechnique.fr performance score
name
value
score
weighting
Value6.2 s
3/100
10%
Value10.4 s
0/100
25%
Value7.0 s
32/100
10%
Value70 ms
99/100
30%
Value0.194
63/100
15%
Value9.4 s
31/100
10%
246 ms
885 ms
83 ms
163 ms
241 ms
Our browser made a total of 69 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Polytechnique.fr, 49% (34 requests) were made to Polytechnique.edu and 32% (22 requests) were made to Pbs.twimg.com. The less responsive or slowest element that took the longest time to load (885 ms) relates to the external source Polytechnique.edu.
Page size can be reduced by 399.7 kB (33%)
1.2 MB
810.6 kB
In fact, the total size of Polytechnique.fr main page is 1.2 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. 45% of websites need less resources to load. Images take 797.7 kB which makes up the majority of the site volume.
Potential reduce by 41.7 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 41.7 kB or 81% of the original size.
Potential reduce by 79.6 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. Polytechnique images are well optimized though.
Potential reduce by 128.0 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 128.0 kB or 70% of the original size.
Potential reduce by 150.4 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. Polytechnique.fr needs all CSS files to be minified and compressed as it can save up to 150.4 kB or 85% of the original size.
Number of requests can be reduced by 14 (22%)
65
51
The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Polytechnique. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.
polytechnique.fr
246 ms
www.polytechnique.edu
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polytechnique.fr accessibility score
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
Links do not have a discernible name
polytechnique.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
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
polytechnique.fr SEO score
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 doesn't use legible font sizes
FR
FR
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Polytechnique.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 Polytechnique.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.
polytechnique.fr
Open Graph description is not detected on the main page of Polytechnique. 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: