Tools & Wizards About Us
lyonnord.univ-lyon1.fr screenshot

Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

lyonnord.univ-lyon1.fr

Université Claude Bernard Lyon 1

Page Load Speed

5 sec in total

First Response

378 ms

Resources Loaded

4.3 sec

Page Rendered

333 ms

lyonnord.univ-lyon1.fr screenshot

About Website

Click here to check amazing Lyon Nord Univ 1 content for France. Otherwise, check out these important facts you probably never knew about lyonnord.univ-lyon1.fr

Les activités de formation et de recherche dans les secteurs des sciences de la santé, des sciences et technologies et des sciences du sport, situent L'Université Lyon 1 au tout premier rang des u...

Visit lyonnord.univ-lyon1.fr

Key Findings

We analyzed Lyonnord.univ-lyon1.fr page load time and found that the first response time was 378 ms and then it took 4.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

lyonnord.univ-lyon1.fr performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.4 s

6/100

10%

LCP (Largest Contentful Paint)

Value14.1 s

0/100

25%

SI (Speed Index)

Value10.1 s

9/100

10%

TBT (Total Blocking Time)

Value1,250 ms

19/100

30%

CLS (Cumulative Layout Shift)

Value0.154

75/100

15%

TTI (Time to Interactive)

Value19.8 s

2/100

10%

Network Requests Diagram

lyonnord.univ-lyon1.fr

378 ms

www.univ-lyon1.fr

964 ms

a794770e11c9d27d5887c9d43626059dc0aa853a.js

486 ms

d6c1f41972de07b09bfa63d2e50f9ab41ec372bd.js

318 ms

83709f4a9b62cea7cb27d88ef750d17431256d98.js

449 ms

Our browser made a total of 120 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Lyonnord.univ-lyon1.fr, 93% (112 requests) were made to Univ-lyon1.fr and 2% (2 requests) were made to S.ytimg.com. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Univ-lyon1.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 600.0 kB (15%)

Content Size

4.1 MB

After Optimization

3.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Lyonnord.univ-lyon1.fr main page is 4.1 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 3.4 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 100.4 kB

  • Original 115.9 kB
  • After minification 106.0 kB
  • After compression 15.5 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 100.4 kB or 87% of the original size.

Image Optimization

-2%

Potential reduce by 69.0 kB

  • Original 3.4 MB
  • After minification 3.4 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. Lyon Nord Univ 1 images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 180.2 kB

  • Original 277.1 kB
  • After minification 273.3 kB
  • After compression 96.9 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 180.2 kB or 65% of the original size.

CSS Optimization

-84%

Potential reduce by 250.4 kB

  • Original 298.9 kB
  • After minification 287.5 kB
  • After compression 48.5 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. Lyonnord.univ-lyon1.fr needs all CSS files to be minified and compressed as it can save up to 250.4 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (16%)

Requests Now

107

After Optimization

90

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 107 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lyon Nord Univ 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 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

lyonnord.univ-lyon1.fr

lyonnord.univ-lyon1.fr

378 ms

www.univ-lyon1.fr

www.univ-lyon1.fr

964 ms

a794770e11c9d27d5887c9d43626059dc0aa853a.js

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486 ms

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318 ms

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83709f4a9b62cea7cb27d88ef750d17431256d98.js

449 ms

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200 ms

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161 ms

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161 ms

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881 ms

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99 ms

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1003 ms

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24 ms

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29 ms

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Accessibility Review

lyonnord.univ-lyon1.fr accessibility score

92

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-hidden="true"] elements contain focusable descendents

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.

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

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

Best Practices

lyonnord.univ-lyon1.fr best practices score

75

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

lyonnord.univ-lyon1.fr SEO score

82

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

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

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Lyonnord.univ-lyon1.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 Lyonnord.univ-lyon1.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

lyonnord.univ-lyon1.fr

Open Graph data is detected on the main page of Lyon Nord Univ 1. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: