Tools & Wizards About Us
univ-rennes2.fr screenshot

Report Summary

  • 35

    Performance

    Renders faster than
    55% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 57% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

univ-rennes2.fr

Accueil | Université Rennes 2

Page Load Speed

3.7 sec in total

First Response

306 ms

Resources Loaded

2.3 sec

Page Rendered

1.1 sec

univ-rennes2.fr screenshot

About Website

Click here to check amazing Univ Rennes 2 content for France. Otherwise, check out these important facts you probably never knew about univ-rennes2.fr

Visit univ-rennes2.fr

Key Findings

We analyzed Univ-rennes2.fr page load time and found that the first response time was 306 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.

Performance Metrics

univ-rennes2.fr performance score

35

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

65/100

10%

LCP (Largest Contentful Paint)

Value6.7 s

7/100

25%

SI (Speed Index)

Value6.4 s

40/100

10%

TBT (Total Blocking Time)

Value1,700 ms

11/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value7.6 s

46/100

10%

Network Requests Diagram

univ-rennes2.fr

306 ms

www.univ-rennes2.fr

314 ms

css__Uvrwz058En5IxX1a8yjODxvzaWuLZRBP8hV3DuPaulQ__-2nU-L5S-nYiPsEfIXvZXdBQYZMU9V9iQJcWk-5wq40__JnPWGsjt9Da4S-LsV8KIcY6r4N4f4exK6vDkoq8oGRo.css

259 ms

js__o-lxhwfh8n7qo9oqEIJXtUy9deUmVgeXDVV8q8oA_Jk__dqtxfNLIjy80i39vWsJvgt8N9HGUVRbPbN2_4LT4an0__JnPWGsjt9Da4S-LsV8KIcY6r4N4f4exK6vDkoq8oGRo.js

318 ms

js__GI8yTK0xfmaVNTybanXF69Od6kfLfvlkn142HgVBamQ__QmMd7iwQ9ozGx4VxITgh1Hjmd6HwDXA9SrTMgxQVn-Q__JnPWGsjt9Da4S-LsV8KIcY6r4N4f4exK6vDkoq8oGRo.js

664 ms

Our browser made a total of 23 requests to load all elements on the main page. We found that 96% of them (22 requests) were addressed to the original Univ-rennes2.fr, 4% (1 request) were made to Webstat.univ-rennes2.fr. The less responsive or slowest element that took the longest time to load (997 ms) belongs to the original domain Univ-rennes2.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 508.9 kB (33%)

Content Size

1.6 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Univ-rennes2.fr main page is 1.6 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. 35% of websites need less resources to load. Images take 932.2 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 48.5 kB

  • Original 61.0 kB
  • After minification 58.5 kB
  • After compression 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 48.5 kB or 79% of the original size.

Image Optimization

-5%

Potential reduce by 43.2 kB

  • Original 932.2 kB
  • After minification 889.0 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. Univ Rennes 2 images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 267.2 kB

  • Original 384.2 kB
  • After minification 383.1 kB
  • After compression 116.9 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 267.2 kB or 70% of the original size.

CSS Optimization

-82%

Potential reduce by 150.0 kB

  • Original 182.3 kB
  • After minification 182.1 kB
  • After compression 32.3 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. Univ-rennes2.fr needs all CSS files to be minified and compressed as it can save up to 150.0 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (15%)

Requests Now

20

After Optimization

17

  • Images
  • JavaScript
  • CSS

The browser has sent 20 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Univ Rennes 2. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

univ-rennes2.fr

univ-rennes2.fr

306 ms

www.univ-rennes2.fr

www.univ-rennes2.fr

314 ms

css__Uvrwz058En5IxX1a8yjODxvzaWuLZRBP8hV3DuPaulQ__-2nU-L5S-nYiPsEfIXvZXdBQYZMU9V9iQJcWk-5wq40__JnPWGsjt9Da4S-LsV8KIcY6r4N4f4exK6vDkoq8oGRo.css

css__Uvrwz058En5IxX1a8yjODxvzaWuLZRBP8hV3DuPaulQ__-2nU-L5S-nYiPsEfIXvZXdBQYZMU9V9iQJcWk-5wq40__JnPWGsjt9Da4S-LsV8KIcY6r4N4f4exK6vDkoq8oGRo.css

259 ms

js__o-lxhwfh8n7qo9oqEIJXtUy9deUmVgeXDVV8q8oA_Jk__dqtxfNLIjy80i39vWsJvgt8N9HGUVRbPbN2_4LT4an0__JnPWGsjt9Da4S-LsV8KIcY6r4N4f4exK6vDkoq8oGRo.js

js__o-lxhwfh8n7qo9oqEIJXtUy9deUmVgeXDVV8q8oA_Jk__dqtxfNLIjy80i39vWsJvgt8N9HGUVRbPbN2_4LT4an0__JnPWGsjt9Da4S-LsV8KIcY6r4N4f4exK6vDkoq8oGRo.js

318 ms

js__GI8yTK0xfmaVNTybanXF69Od6kfLfvlkn142HgVBamQ__QmMd7iwQ9ozGx4VxITgh1Hjmd6HwDXA9SrTMgxQVn-Q__JnPWGsjt9Da4S-LsV8KIcY6r4N4f4exK6vDkoq8oGRo.js

js__GI8yTK0xfmaVNTybanXF69Od6kfLfvlkn142HgVBamQ__QmMd7iwQ9ozGx4VxITgh1Hjmd6HwDXA9SrTMgxQVn-Q__JnPWGsjt9Da4S-LsV8KIcY6r4N4f4exK6vDkoq8oGRo.js

664 ms

js__c4QkjVf375OhCCNP0_FfhJ0iNita1HDm1fxIEoeoTNU__NP6jZiyIKPLJKQM9gcTVWYF7xCQkW3alht6SICihOuQ__JnPWGsjt9Da4S-LsV8KIcY6r4N4f4exK6vDkoq8oGRo.js

js__c4QkjVf375OhCCNP0_FfhJ0iNita1HDm1fxIEoeoTNU__NP6jZiyIKPLJKQM9gcTVWYF7xCQkW3alht6SICihOuQ__JnPWGsjt9Da4S-LsV8KIcY6r4N4f4exK6vDkoq8oGRo.js

181 ms

background_front.gif

background_front.gif

188 ms

logo.svg

logo.svg

177 ms

bandeau-jneeartville.jpg

bandeau-jneeartville.jpg

914 ms

bandeau-jpo-2016.jpg

bandeau-jpo-2016.jpg

997 ms

Bandeau-JPO-Mazier.jpg

Bandeau-JPO-Mazier.jpg

866 ms

actu_rvc_filleangot.jpg

actu_rvc_filleangot.jpg

906 ms

prev.svg

prev.svg

181 ms

next.svg

next.svg

196 ms

BoutonRegarderEcouter.png

BoutonRegarderEcouter.png

455 ms

fleche_blanc_bas.svg

fleche_blanc_bas.svg

469 ms

facebook-icon.svg

facebook-icon.svg

470 ms

twitter-icon.svg

twitter-icon.svg

481 ms

instagram-icon.svg

instagram-icon.svg

482 ms

feed-accueil.svg

feed-accueil.svg

484 ms

Pochoir_pleine.otf

Pochoir_pleine.otf

353 ms

piwik.js

piwik.js

450 ms

external.svg

external.svg

90 ms

Accessibility Review

univ-rennes2.fr accessibility score

84

Accessibility Issues

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

High

[role]s do not have all required [aria-*] attributes

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

High

Buttons do not have an accessible name

High

Links do not have a discernible name

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Best Practices

univ-rennes2.fr best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

univ-rennes2.fr SEO score

83

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    FR

  • Language Claimed

    FR

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Univ-rennes2.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 Univ-rennes2.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.

Social Sharing Optimization

univ-rennes2.fr

Open Graph description is not detected on the main page of Univ Rennes 2. 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: