9.3 sec in total
308 ms
8.8 sec
216 ms
Visit ensai.fr now to see the best up-to-date ENSAI content for France and also check out these interesting facts you probably never knew about ensai.fr
La Grande Ecole de la Data Science. Implantée à Rennes, l’ENSAI forme des data scientists capables de donner du sens aux données.
Visit ensai.frWe analyzed Ensai.fr page load time and found that the first response time was 308 ms and then it took 9 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
ensai.fr performance score
name
value
score
weighting
Value2.6 s
62/100
10%
Value2.6 s
87/100
25%
Value14.4 s
1/100
10%
Value1,550 ms
13/100
30%
Value0.085
93/100
15%
Value21.3 s
1/100
10%
308 ms
5880 ms
25 ms
297 ms
9 ms
Our browser made a total of 30 requests to load all elements on the main page. We found that 80% of them (24 requests) were addressed to the original Ensai.fr, 7% (2 requests) were made to Google-analytics.com and 7% (2 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (5.9 sec) belongs to the original domain Ensai.fr.
Page size can be reduced by 278.8 kB (15%)
1.9 MB
1.6 MB
In fact, the total size of Ensai.fr main page is 1.9 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. 20% of websites need less resources to load. Images take 1.6 MB which makes up the majority of the site volume.
Potential reduce by 24.4 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 24.4 kB or 76% of the original size.
Potential reduce by 39.6 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. ENSAI images are well optimized though.
Potential reduce by 172.8 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 172.8 kB or 66% of the original size.
Potential reduce by 42.0 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. Ensai.fr needs all CSS files to be minified and compressed as it can save up to 42.0 kB or 84% of the original size.
Number of requests can be reduced by 13 (50%)
26
13
The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ENSAI. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.
ensai.fr
308 ms
www.ensai.fr
5880 ms
css
25 ms
c6148d863baa.css
297 ms
mootools-yui-compressed.js
9 ms
aea14ed8b078.js
496 ms
menu.js
111 ms
animation.js
228 ms
placeholder.js
228 ms
main.js
230 ms
slimbox.js
230 ms
mobile.js
502 ms
analytics.js
43 ms
bg_body.png
108 ms
sprite.png
408 ms
logo_ensai.png
407 ms
ent-icon.png
107 ms
menu-spacer.png
106 ms
BigData%232-ENG.jpg
799 ms
CGE2015_bandeau2.jpg
885 ms
P1100341v4-1de98ef0.jpg
669 ms
EJC_2015.jpg
2124 ms
partenaires.jpg
997 ms
ensai-alumni.png
509 ms
bg_footer.png
612 ms
video%20Ensai-7a1a414a.png
911 ms
nav-footer-logo-ubl.png
776 ms
_xyN3apAT_yRRDeqB3sPRg.woff
14 ms
0ihfXUL2emPh0ROJezvraD8E0i7KZn-EPnyo3HZu7kw.woff
15 ms
collect
24 ms
ensai.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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
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
Image elements do not have [alt] attributes
Links do not have a discernible name
ensai.fr best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
ensai.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
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
Document uses legible font sizes
FR
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ensai.fr can be misinterpreted by Google and other search engines. Our service has detected that French is used on the page, and it does not match the claimed English language. Our system also found out that Ensai.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.
ensai.fr
Open Graph description is not detected on the main page of ENSAI. 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: