Access master-info.univ-lyon1.fr. Master informatique - Université Claude Bernard Lyon 1

name

value

score

weighting

FCP (First Contentful Paint)

Value6.8 s

2/100

10%

LCP (Largest Contentful Paint)

Value6.8 s

7/100

25%

SI (Speed Index)

Value11.4 s

5/100

10%

TBT (Total Blocking Time)

Value2,080 ms

7/100

30%

CLS (Cumulative Layout Shift)

Value0.074

95/100

15%

TTI (Time to Interactive)

Value15.0 s

7/100

10%

master-info.univ-lyon1.fr

307 ms

theme_css_PORTAIL.css

99 ms

foundation.min.css

280 ms

foundation-icons.css

188 ms

jquery-1.10.2.min.js

289 ms

Our browser made a total of 65 requests to load all elements on the main page. We found that 74% of them (48 requests) were addressed to the original Master-info.univ-lyon1.fr, 9% (6 requests) were made to Youtube.com and 8% (5 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Master-info.univ-lyon1.fr.

Content Size

638.7 kB

After Optimization

524.5 kB

In fact, the total size of Master-info.univ-lyon1.fr main page is 638.7 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Javascripts take 409.2 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 21.4 kB

Original 25.4 kB
After minification 19.4 kB
After compression 4.0 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 6.0 kB, which is 24% 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 21.4 kB or 84% of the original size.

Image Optimization

-19%

Potential reduce by 22.3 kB

Original 118.5 kB
After minification 96.2 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, Master Info Univ Lyon 1 needs image optimization as it can save up to 22.3 kB or 19% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-17%

Potential reduce by 67.8 kB

Original 409.2 kB
After minification 408.6 kB
After compression 341.4 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 67.8 kB or 17% of the original size.

CSS Optimization

-3%

Potential reduce by 2.7 kB

Original 85.6 kB
After minification 85.6 kB
After compression 82.9 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. Master-info.univ-lyon1.fr has all CSS files already compressed.

Requests Now

After Optimization

The browser has sent 58 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Master Info Univ Lyon 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 44 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

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

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.

High

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

High

Image elements do not have [alt] attributes

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Page has valid source maps

Search Engine Optimization Advices

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

High

Links are not crawlable

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

High

Image elements do not have [alt] attributes

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/).

High

Document uses legible font sizes

Language and Encoding

Language Detected

FR
Language Claimed

EN
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Master-info.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 does not match the claimed English language. Our system also found out that Master-info.univ-lyon1.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

master-info.univ-lyon1.fr

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Master informatique - Université Claude Bernard Lyon 1

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

master-info.univ-lyon1.fr

theme_css_PORTAIL.css

foundation.min.css

foundation-icons.css

jquery-1.10.2.min.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

master-info.univ-lyon1.fr

theme_css_PORTAIL.css

foundation.min.css

foundation-icons.css

jquery-1.10.2.min.js

jquery.mobile-1.4.0.min.js

jquery-ui-1.10.3.custom.min.js

fullcalendar.js

showdown.js

table.js

underscore-min.js

backbone.js

constants.js

ajaxer.js

cache.js

tagmodule.js

get-news.js

get-ade.js

get-info-odf-full.js

get-info-odf-min.js

content.js

parameters.js

menu.js

header.js

site.js

header-view.js

content-view.js

menu-classic-view.js

menu-edition-view.js

ref.js

unparse.js

router.js

main-affichage.js

foundation.min.js

foundation.offcanvas.js

modernizr.js

modal.js

style.css

navbar2.js

toolbar.js

css

alertbox.js

offcanvas.js