3.6 sec in total
252 ms
3.2 sec
143 ms
Welcome to ensta-paristech.fr homepage info - get ready to check ENSTA Paris Tech best content for France right away, or after learning these important things about ensta-paristech.fr
Membre fondateur de l’Institut Polytechnique de Paris, ENSTA Paris développe des formations et une recherche appliquée de haut niveau. Elle est particulièrement reconnue pour son expertise dans les do...
Visit ensta-paristech.frWe analyzed Ensta-paristech.fr page load time and found that the first response time was 252 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
ensta-paristech.fr performance score
name
value
score
weighting
Value3.6 s
33/100
10%
Value6.3 s
11/100
25%
Value6.0 s
46/100
10%
Value460 ms
63/100
30%
Value0.107
88/100
15%
Value10.4 s
25/100
10%
252 ms
1087 ms
172 ms
173 ms
175 ms
Our browser made a total of 69 requests to load all elements on the main page. We found that 94% of them (65 requests) were addressed to the original Ensta-paristech.fr, 3% (2 requests) were made to Google-analytics.com and 3% (2 requests) were made to Piwik.ensta-paristech.fr. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Ensta-paristech.fr.
Page size can be reduced by 235.3 kB (20%)
1.2 MB
954.0 kB
In fact, the total size of Ensta-paristech.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. 40% of websites need less resources to load. Images take 973.0 kB which makes up the majority of the site volume.
Potential reduce by 12.5 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 12.5 kB or 70% of the original size.
Potential reduce by 92.8 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. ENSTA Paris Tech images are well optimized though.
Potential reduce by 106.2 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 106.2 kB or 64% of the original size.
Potential reduce by 23.8 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. Ensta-paristech.fr needs all CSS files to be minified and compressed as it can save up to 23.8 kB or 74% of the original size.
Number of requests can be reduced by 22 (33%)
66
44
The browser has sent 66 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ENSTA Paris Tech. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
ensta-paristech.fr
252 ms
www.ensta-paristech.fr
1087 ms
css_kShW4RPmRstZ3SpIC-ZvVGNFVAi0WEMuCnI0ZkYIaFw.css
172 ms
css_SZicmUpxVyH-1oSX-MkDzUXCNod7Fm_TjzIu6Ex1Duc.css
173 ms
css_MnXiytJtb186Ydycnpwpw34cuUsHaKc80ey5LiQXhSY.css
175 ms
css_6hW77LQ3azJvaZ0fQAuO-TRDir7gSEhBBC1aPr9GKU0.css
176 ms
js_xAPl0qIk9eowy_iS9tNkCWXLUVoat94SQT48UBCFkyQ.js
433 ms
js_-pj_3lMlswqOIRGwMrNUwwFMkdxKRU8ZujveOFQvIe4.js
249 ms
js_rv_BKYv7yieH0IgHddhWHDC-bWGan8yiJbusyOpr0mw.js
255 ms
js_gob36DFwOK_rlnn3JJ7Q0u5iA-izy-S0yv3orGVdIuo.js
257 ms
js_JmVf25OaN_OMjB1JwqAJzeHxY7JvXpRp-KPRffD1FMc.js
347 ms
ga.js
61 ms
bg-fond.png
88 ms
logo.png
262 ms
FR.gif
100 ms
EN.gif
100 ms
ZH.gif
92 ms
ombre-logo.png
91 ms
P28hautdroite.jpg
349 ms
Hydrodynamique.jpg
178 ms
math_tableau.jpg
440 ms
promo2015edf.jpg
724 ms
catamaran.jpg
358 ms
association.jpg
357 ms
IMG_7724-2.jpg
477 ms
LOA.jpg
527 ms
campus_2.jpg
540 ms
IMG_7479-2.jpg
540 ms
glycines.jpg
620 ms
eoliennes.jpg
670 ms
IMG_7398-2.jpg
619 ms
hd_cb2a5162-1ad4-4d64-bef7-41622d3f45c9.jpg
633 ms
soufflerie_voiture.jpg
726 ms
corbis.jpg
803 ms
promo2016.jpg
997 ms
IMG_7443-2.jpg
727 ms
dcnshd.jpg
856 ms
inge_syst.jpg
816 ms
campus_1.jpg
917 ms
Fissure.jpg
822 ms
voiture_cavitation.jpg
900 ms
p29hautdroite.jpg
914 ms
IMG_7606-2.jpg
920 ms
logements_branches.jpg
1048 ms
amphi.jpg
1286 ms
logo.jpg
1013 ms
math_tableau_2.jpg
1016 ms
piwik.js
541 ms
petite_classe_1.jpg
985 ms
__utm.gif
13 ms
menu1_fond.jpg
1015 ms
go.gif
1032 ms
print.gif
1026 ms
puce-gris.png
1030 ms
menu-puce-gris.png
1055 ms
googleplus.png
1023 ms
sn-facebook.png
957 ms
sn-twitter.png
874 ms
sn-vine.png
869 ms
sn-youtube.png
895 ms
sn-scoopit.png
858 ms
feed.png
841 ms
video_ensta_paristech_msc_engineering.jpg
891 ms
ceg-test.jpg
882 ms
paristech-test.jpg
811 ms
piwik.js
996 ms
upsay-test.jpg
769 ms
arrow-left-small.png
774 ms
arrow-right-small.png
783 ms
ensta-paristech.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
Links do not have a discernible name
ensta-paristech.fr best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
ensta-paristech.fr SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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 Ensta-paristech.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 Ensta-paristech.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.
ensta-paristech.fr
Open Graph description is not detected on the main page of ENSTA Paris Tech. 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: