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

Report Summary

  • 39

    Performance

    Renders faster than
    58% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

iut.univ-lyon2.fr

Institut universitaire de technologie

Page Load Speed

3.6 sec in total

First Response

283 ms

Resources Loaded

2.8 sec

Page Rendered

567 ms

iut.univ-lyon2.fr screenshot

About Website

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

Visit iut.univ-lyon2.fr

Key Findings

We analyzed Iut.univ-lyon2.fr page load time and found that the first response time was 283 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

iut.univ-lyon2.fr performance score

39

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

43/100

10%

LCP (Largest Contentful Paint)

Value11.9 s

0/100

25%

SI (Speed Index)

Value6.0 s

47/100

10%

TBT (Total Blocking Time)

Value680 ms

44/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value11.0 s

21/100

10%

Network Requests Diagram

iut.univ-lyon2.fr

283 ms

iut.univ-lyon2.fr

756 ms

2f625c8d10c806cfdd2ef3a4b911992957fc2eac.css

500 ms

9fd492f30acf3639ff98aaba5f3a683fe3057509.css

383 ms

e4cf41a1fd54d60e4b29ef625fad2d49c7f11ed8.js

490 ms

Our browser made a total of 69 requests to load all elements on the main page. We found that 80% of them (55 requests) were addressed to the original Iut.univ-lyon2.fr, 13% (9 requests) were made to Widgets.custplace.com and 4% (3 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Iut.univ-lyon2.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 945.5 kB (17%)

Content Size

5.7 MB

After Optimization

4.8 MB

  • HTML
  • Images

In fact, the total size of Iut.univ-lyon2.fr main page is 5.7 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. 70% of websites need less resources to load. Images take 5.6 MB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 125.8 kB

  • Original 138.6 kB
  • After minification 88.9 kB
  • After compression 12.8 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 49.7 kB, which is 36% 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 125.8 kB or 91% of the original size.

Image Optimization

-15%

Potential reduce by 819.7 kB

  • Original 5.6 MB
  • After minification 4.8 MB

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, Iut Univ Lyon 2 needs image optimization as it can save up to 819.7 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

Requests Breakdown

Number of requests can be reduced by 8 (21%)

Requests Now

38

After Optimization

30

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Iut 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 6 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

iut.univ-lyon2.fr

iut.univ-lyon2.fr

283 ms

iut.univ-lyon2.fr

iut.univ-lyon2.fr

756 ms

2f625c8d10c806cfdd2ef3a4b911992957fc2eac.css

2f625c8d10c806cfdd2ef3a4b911992957fc2eac.css

500 ms

9fd492f30acf3639ff98aaba5f3a683fe3057509.css

9fd492f30acf3639ff98aaba5f3a683fe3057509.css

383 ms

e4cf41a1fd54d60e4b29ef625fad2d49c7f11ed8.js

e4cf41a1fd54d60e4b29ef625fad2d49c7f11ed8.js

490 ms

embed.js

embed.js

80 ms

configuration.js

configuration.js

114 ms

19ab7bb11a4dd264f902c9d5afa32c713cff0af2.js

19ab7bb11a4dd264f902c9d5afa32c713cff0af2.js

764 ms

ulyon2-icons.svg

ulyon2-icons.svg

390 ms

univlon2+couleur.png

univlon2+couleur.png

110 ms

applis_1574332878105-png

applis_1574332878105-png

109 ms

courrier_1574330078390-png

courrier_1574330078390-png

154 ms

IUTLumiere_logo-blanc2018.png

IUTLumiere_logo-blanc2018.png

298 ms

logoweb_iutlumiere.png

logoweb_iutlumiere.png

208 ms

bandeau-rentree-23_1724140176743-jpg

bandeau-rentree-23_1724140176743-jpg

698 ms

social-icons.svg

social-icons.svg

306 ms

inscription_1715934057454-png

inscription_1715934057454-png

399 ms

calendrier-bulle_1721205828154-png

calendrier-bulle_1721205828154-png

399 ms

poignee-de-main_1721114397450-png

poignee-de-main_1721114397450-png

583 ms

image-soltea_1678803454097-jpg

image-soltea_1678803454097-jpg

944 ms

icon-fb_1707993730818-png

icon-fb_1707993730818-png

499 ms

icon-insta_1707993759705-png

icon-insta_1707993759705-png

497 ms

icon-in_1707993628769-png

icon-in_1707993628769-png

599 ms

icon-x_1707993583016-png

icon-x_1707993583016-png

598 ms

icon-yt_1707993523897-png

icon-yt_1707993523897-png

600 ms

logo_IUT-couleurs-piedepageweb.png

logo_IUT-couleurs-piedepageweb.png

678 ms

1.embed.js

1.embed.js

25 ms

2.embed.js

2.embed.js

35 ms

shape-1.svg

shape-1.svg

601 ms

shape-2.svg

shape-2.svg

603 ms

shape-3.svg

shape-3.svg

604 ms

Montserrat-Regular.woff

Montserrat-Regular.woff

851 ms

Montserrat-Medium.woff

Montserrat-Medium.woff

887 ms

Montserrat-Light.woff

Montserrat-Light.woff

778 ms

Montserrat-ExtraLight.woff

Montserrat-ExtraLight.woff

887 ms

Montserrat-Thin.woff

Montserrat-Thin.woff

691 ms

Montserrat-SemiBold.woff

Montserrat-SemiBold.woff

794 ms

Montserrat-Bold.woff

Montserrat-Bold.woff

886 ms

Montserrat-ExtraBold.woff

Montserrat-ExtraBold.woff

887 ms

Montserrat-Black.woff

Montserrat-Black.woff

932 ms

Barlow-Bold.woff

Barlow-Bold.woff

949 ms

BarlowSemiCondensed-Bold.woff

BarlowSemiCondensed-Bold.woff

983 ms

BarlowSemiCondensed-ExtraBold.woff

BarlowSemiCondensed-ExtraBold.woff

982 ms

Barlow-ExtraBold.woff

Barlow-ExtraBold.woff

983 ms

BarlowSemiCondensed-Black.woff

BarlowSemiCondensed-Black.woff

983 ms

Barlow-Black.woff

Barlow-Black.woff

1023 ms

Barlow-SemiBold.woff

Barlow-SemiBold.woff

1058 ms

css

css

32 ms

sceau.svg

sceau.svg

15 ms

90572

90572

372 ms

BarlowSemiCondensed-SemiBold.woff

BarlowSemiCondensed-SemiBold.woff

1026 ms

selected-0.svg

selected-0.svg

390 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVQ.woff

21 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVQ.woff

28 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVQ.woff

47 ms

BarlowSemiCondensed-Medium.woff

BarlowSemiCondensed-Medium.woff

972 ms

Barlow-Medium.woff

Barlow-Medium.woff

883 ms

Barlow-Regular.woff

Barlow-Regular.woff

920 ms

BarlowSemiCondensed-Regular.woff

BarlowSemiCondensed-Regular.woff

840 ms

Barlow-Light.woff

Barlow-Light.woff

875 ms

BarlowSemiCondensed-Light.woff

BarlowSemiCondensed-Light.woff

873 ms

Barlow-ExtraLight.woff

Barlow-ExtraLight.woff

776 ms

BarlowSemiCondensed-Thin.woff

BarlowSemiCondensed-Thin.woff

776 ms

Barlow-Thin.woff

Barlow-Thin.woff

771 ms

sum-selected-4.svg

sum-selected-4.svg

376 ms

selected-5.svg

selected-5.svg

13 ms

selected-4.svg

selected-4.svg

39 ms

arrow.svg

arrow.svg

35 ms

616debdf844b7e6e91fa208c321286ce7dde4619.css

616debdf844b7e6e91fa208c321286ce7dde4619.css

123 ms

Accessibility Review

iut.univ-lyon2.fr accessibility score

76

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

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

iut.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

iut.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

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Iut.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 Iut.univ-lyon2.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

iut.univ-lyon2.fr

Open Graph description is not detected on the main page of Iut 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: