3.9 sec in total
548 ms
3.1 sec
275 ms
Welcome to atelierweb.epfl.ch homepage info - get ready to check Atelierweb EPFL best content for Switzerland right away, or after learning these important things about atelierweb.epfl.ch
Discover the rules and recommendations for EPFL webmasters.
Visit atelierweb.epfl.chWe analyzed Atelierweb.epfl.ch page load time and found that the first response time was 548 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.
atelierweb.epfl.ch performance score
name
value
score
weighting
Value5.0 s
10/100
10%
Value8.0 s
3/100
25%
Value23.1 s
0/100
10%
Value1,360 ms
17/100
30%
Value0
100/100
15%
Value10.2 s
25/100
10%
548 ms
192 ms
189 ms
279 ms
29 ms
Our browser made a total of 44 requests to load all elements on the main page. We found that 36% of them (16 requests) were addressed to the original Atelierweb.epfl.ch, 45% (20 requests) were made to Epfl.ch and 7% (3 requests) were made to Actu.epfl.ch. The less responsive or slowest element that took the longest time to load (1.8 sec) relates to the external source Epfl.ch.
Page size can be reduced by 238.8 kB (54%)
442.8 kB
204.0 kB
In fact, the total size of Atelierweb.epfl.ch main page is 442.8 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. 25% of websites need less resources to load. Javascripts take 201.2 kB which makes up the majority of the site volume.
Potential reduce by 35.0 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 9.3 kB, which is 21% 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 35.0 kB or 80% of the original size.
Potential reduce by 22.9 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. Obviously, Atelierweb EPFL needs image optimization as it can save up to 22.9 kB or 23% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 99.8 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 99.8 kB or 50% of the original size.
Potential reduce by 81.1 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. Atelierweb.epfl.ch needs all CSS files to be minified and compressed as it can save up to 81.1 kB or 84% of the original size.
Number of requests can be reduced by 24 (56%)
43
19
The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Atelierweb EPFL. 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 from 7 to 1 for CSS and as a result speed up the page load time.
atelierweb.epfl.ch
548 ms
epfl.css
192 ms
homePortal.css
189 ms
jahia.css
279 ms
jquery.min.js
29 ms
jquery.plugins.js
381 ms
epfl.js
306 ms
socialshare.js
192 ms
shCore.js
305 ms
shBrushBash.js
371 ms
shBrushPhp.js
431 ms
shBrushXml.js
958 ms
shCore.css
1016 ms
shThemeEPFL.css
1806 ms
applications.css
291 ms
wsi.ashx
180 ms
my-server.png
99 ms
160x90.jpg
213 ms
grey-facebook-round.png
277 ms
grey-twitter-round.png
278 ms
grey-linkedin-round.png
276 ms
grey-googleplus-round.png
277 ms
grey-mail-round.png
367 ms
web-services2.jpg
465 ms
icon_mail.png
572 ms
160x90.jpg
422 ms
160x90.jpg
404 ms
underline.gif
137 ms
epfl_small.png
717 ms
sprites-arrow.png
137 ms
sprites.png
138 ms
magnifier.png
135 ms
separator.png
136 ms
icon_home_white.png
444 ms
dot.png
96 ms
arrow-more.gif
160 ms
icons-all.png
251 ms
arrow-login.png
162 ms
ga.js
33 ms
header_fr.jsp
475 ms
__utm.gif
26 ms
__utm.gif
34 ms
epfl_small.png
93 ms
print.css
95 ms
atelierweb.epfl.ch 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.
atelierweb.epfl.ch 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
atelierweb.epfl.ch 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
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
Tap targets are not sized appropriately
N/A
FR
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Atelierweb.epfl.ch can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is French. Our system also found out that Atelierweb.epfl.ch 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.
atelierweb.epfl.ch
Open Graph description is not detected on the main page of Atelierweb EPFL. 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: