3 sec in total
440 ms
2.4 sec
131 ms
Click here to check amazing IRMAR Univ Rennes 1 content for France. Otherwise, check out these important facts you probably never knew about irmar.univ-rennes1.fr
L'Institut de recherche mathématique de Rennes (IRMAR - UMR CNRS 6625) est une structure de recherche soutenue par l'Université de Rennes et le CNRS.
Visit irmar.univ-rennes1.frWe analyzed Irmar.univ-rennes1.fr page load time and found that the first response time was 440 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.
irmar.univ-rennes1.fr performance score
name
value
score
weighting
Value4.3 s
17/100
10%
Value9.8 s
0/100
25%
Value19.8 s
0/100
10%
Value810 ms
36/100
30%
Value0.079
94/100
15%
Value11.2 s
19/100
10%
440 ms
699 ms
1207 ms
1135 ms
711 ms
Our browser made a total of 46 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Irmar.univ-rennes1.fr, 96% (44 requests) were made to Ressources-infoglue.univ-rennes1.fr and 2% (1 request) were made to Visites.univ-rennes1.fr. The less responsive or slowest element that took the longest time to load (1.2 sec) relates to the external source Ressources-infoglue.univ-rennes1.fr.
Page size can be reduced by 605.0 kB (77%)
783.0 kB
178.0 kB
In fact, the total size of Irmar.univ-rennes1.fr main page is 783.0 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. 20% of websites need less resources to load. Javascripts take 677.4 kB which makes up the majority of the site volume.
Potential reduce by 15.6 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 15.6 kB or 72% of the original size.
Potential reduce by 6.0 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, IRMAR Univ Rennes 1 needs image optimization as it can save up to 6.0 kB or 32% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 529.3 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 529.3 kB or 78% of the original size.
Potential reduce by 54.1 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. Irmar.univ-rennes1.fr needs all CSS files to be minified and compressed as it can save up to 54.1 kB or 83% of the original size.
Number of requests can be reduced by 39 (87%)
45
6
The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of IRMAR Univ Rennes 1. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 24 to 1 for CSS and as a result speed up the page load time.
irmar.univ-rennes1.fr
440 ms
base.css
699 ms
jquery.js
1207 ms
jquery.ui.js
1135 ms
jquery.accordion.js
711 ms
jquery.jcarousel.js
794 ms
mootools.js
974 ms
swfobject.js
780 ms
accordion.js
795 ms
accessUrlWith.js
865 ms
valideSearch.js
879 ms
base.css
186 ms
header.css
90 ms
breadcrumb.css
88 ms
menu-horizontal.css
90 ms
menu-vertical.css
172 ms
content.css
173 ms
footer.css
178 ms
form.css
180 ms
table.css
257 ms
hal.css
258 ms
content-header.css
89 ms
content-footer.css
89 ms
content-news.css
163 ms
content-announces.css
172 ms
content-component.css
173 ms
content-menu-tabs.css
173 ms
content-bloc.css
173 ms
content-cdm.css
234 ms
content-google.css
246 ms
ressources-documentaires.css
255 ms
ori-oai-publications.css
256 ms
background_body.png
89 ms
background_header.png
94 ms
logo.png
91 ms
background_menu.png
88 ms
puce_101.gif
89 ms
puce_201.gif
92 ms
background_button.png
174 ms
window.png
176 ms
line_dotted.png
177 ms
puce_402.gif
175 ms
background_footer.png
177 ms
piwik.js
619 ms
print.css
88 ms
print.css
87 ms
irmar.univ-rennes1.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 input fields do not have accessible names
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
irmar.univ-rennes1.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
Missing source maps for large first-party JavaScript
irmar.univ-rennes1.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
Tap targets are not sized appropriately
FR
FR
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Irmar.univ-rennes1.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 Irmar.univ-rennes1.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.
irmar.univ-rennes1.fr
Open Graph description is not detected on the main page of IRMAR Univ Rennes 1. 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: