Tools & Wizards About Us
lesla.univ-lyon2.fr screenshot

Report Summary

  • 48

    Performance

    Renders faster than
    67% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

lesla.univ-lyon2.fr

UFR de Lettres, sciences du langage et arts

Page Load Speed

3.5 sec in total

First Response

691 ms

Resources Loaded

2.5 sec

Page Rendered

240 ms

lesla.univ-lyon2.fr screenshot

About Website

Click here to check amazing Lesla Univ Lyon 2 content for France. Otherwise, check out these important facts you probably never knew about lesla.univ-lyon2.fr

Visit lesla.univ-lyon2.fr

Key Findings

We analyzed Lesla.univ-lyon2.fr page load time and found that the first response time was 691 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

lesla.univ-lyon2.fr performance score

48

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

40/100

10%

LCP (Largest Contentful Paint)

Value11.9 s

0/100

25%

SI (Speed Index)

Value6.9 s

34/100

10%

TBT (Total Blocking Time)

Value320 ms

76/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value9.7 s

28/100

10%

Network Requests Diagram

lesla.univ-lyon2.fr

691 ms

reset.css

194 ms

ecran.css

290 ms

mediatheque.css

194 ms

panier.css

196 ms

Our browser made a total of 31 requests to load all elements on the main page. We found that all of those requests were addressed to Lesla.univ-lyon2.fr and no external sources were called. The less responsive or slowest element that took the longest time to load (804 ms) belongs to the original domain Lesla.univ-lyon2.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 308.4 kB (71%)

Content Size

437.2 kB

After Optimization

128.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Lesla.univ-lyon2.fr main page is 437.2 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. Images take 214.1 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 22.1 kB

  • Original 29.4 kB
  • After minification 27.7 kB
  • After compression 7.3 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 22.1 kB or 75% of the original size.

Image Optimization

-68%

Potential reduce by 144.7 kB

  • Original 214.1 kB
  • After minification 69.4 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, Lesla Univ Lyon 2 needs image optimization as it can save up to 144.7 kB or 68% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-71%

Potential reduce by 103.2 kB

  • Original 145.9 kB
  • After minification 128.0 kB
  • After compression 42.7 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 103.2 kB or 71% of the original size.

CSS Optimization

-80%

Potential reduce by 38.4 kB

  • Original 47.8 kB
  • After minification 37.0 kB
  • After compression 9.4 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. Lesla.univ-lyon2.fr needs all CSS files to be minified and compressed as it can save up to 38.4 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (57%)

Requests Now

30

After Optimization

13

  • Images
  • JavaScript
  • CSS

The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lesla Univ Lyon 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 12 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

lesla.univ-lyon2.fr

lesla.univ-lyon2.fr

691 ms

reset.css

reset.css

194 ms

ecran.css

ecran.css

290 ms

mediatheque.css

mediatheque.css

194 ms

panier.css

panier.css

196 ms

lightbox.css

lightbox.css

196 ms

jquery-1.4.2.min.js

jquery-1.4.2.min.js

654 ms

jquery.cycle.min.js

jquery.cycle.min.js

481 ms

jquery.color.min.js

jquery.color.min.js

388 ms

jquery.tools.min.js

jquery.tools.min.js

397 ms

jquery.hotkeys.min.js

jquery.hotkeys.min.js

439 ms

tarteaucitron.js

tarteaucitron.js

580 ms

scripts_modele.js

scripts_modele.js

804 ms

onglet.js

onglet.js

588 ms

fckeditor.js

fckeditor.js

640 ms

player_flipbook.js

player_flipbook.js

674 ms

plus.png

plus.png

388 ms

moins.png

moins.png

389 ms

usine-logo-2014.png

usine-logo-2014.png

295 ms

navigation.png

navigation.png

199 ms

bandeau-fc_1420711113444-jpg

bandeau-fc_1420711113444-jpg

387 ms

rss.png

rss.png

199 ms

v_stop_1456841731626-jpg

v_stop_1456841731626-jpg

390 ms

photo_liste_defaut.png

photo_liste_defaut.png

638 ms

v_cine-769-ma-et-philo-affiche-programme-copie_1458039036810-jpg

v_cine-769-ma-et-philo-affiche-programme-copie_1458039036810-jpg

547 ms

tarteaucitron.css

tarteaucitron.css

634 ms

tarteaucitron.en.js

tarteaucitron.en.js

646 ms

tarteaucitron.services.js

tarteaucitron.services.js

99 ms

printstyles_modele.css

printstyles_modele.css

196 ms

closelabel.gif

closelabel.gif

195 ms

loading.gif

loading.gif

196 ms

Accessibility Review

lesla.univ-lyon2.fr accessibility score

81

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

[aria-*] attributes do not match their roles

High

[aria-hidden="true"] elements contain focusable descendents

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

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

lesla.univ-lyon2.fr best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

lesla.univ-lyon2.fr SEO score

86

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

Language and Encoding

  • Language Detected

    FR

  • Language Claimed

    FR

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Lesla.univ-lyon2.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 Lesla.univ-lyon2.fr main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

lesla.univ-lyon2.fr

Open Graph description is not detected on the main page of Lesla Univ Lyon 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: