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pratic.ens-lyon.fr screenshot

Report Summary

  • 94

    Performance

    Renders faster than
    93% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

pratic.ens-lyon.fr

Page Load Speed

3.2 sec in total

First Response

627 ms

Resources Loaded

2.4 sec

Page Rendered

189 ms

pratic.ens-lyon.fr screenshot

About Website

Welcome to pratic.ens-lyon.fr homepage info - get ready to check Pratic Ens Lyon best content for France right away, or after learning these important things about pratic.ens-lyon.fr

Ce site présente les travaux et les résultats du Pr@tic (Pôle de Ressources et d'Assistance pour les Technologies de l'Information et de la Communication) de l'ENS-Lyon. Il assure aussi la fonction d...

Visit pratic.ens-lyon.fr

Key Findings

We analyzed Pratic.ens-lyon.fr page load time and found that the first response time was 627 ms and then it took 2.6 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

pratic.ens-lyon.fr performance score

94

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

76/100

10%

LCP (Largest Contentful Paint)

Value2.4 s

92/100

25%

SI (Speed Index)

Value4.0 s

80/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.3 s

99/100

10%

Network Requests Diagram

pratic.ens-lyon.fr

627 ms

ploneScripts4681.js

548 ms

ploneScripts8021.js

363 ms

ploneStyles1914.css

450 ms

ploneStyles2612.css

114 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 Pratic.ens-lyon.fr and no external sources were called. The less responsive or slowest element that took the longest time to load (627 ms) belongs to the original domain Pratic.ens-lyon.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 27.4 kB (56%)

Content Size

48.8 kB

After Optimization

21.4 kB

  • HTML
  • Images

In fact, the total size of Pratic.ens-lyon.fr main page is 48.8 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. 15% of websites need less resources to load. HTML takes 34.9 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 27.3 kB

  • Original 34.9 kB
  • After minification 27.6 kB
  • After compression 7.5 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. This page needs HTML code to be minified as it can gain 7.2 kB, which is 21% 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 27.3 kB or 78% of the original size.

Image Optimization

-1%

Potential reduce by 71 B

  • Original 13.9 kB
  • After minification 13.8 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. Pratic Ens Lyon images are well optimized though.

Requests Breakdown

Number of requests can be reduced by 21 (70%)

Requests Now

30

After Optimization

9

  • Images
  • JavaScript
  • CSS

The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Pratic Ens Lyon. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

pratic.ens-lyon.fr

pratic.ens-lyon.fr

627 ms

ploneScripts4681.js

ploneScripts4681.js

548 ms

ploneScripts8021.js

ploneScripts8021.js

363 ms

ploneStyles1914.css

ploneStyles1914.css

450 ms

ploneStyles2612.css

ploneStyles2612.css

114 ms

ploneStyles3589.css

ploneStyles3589.css

153 ms

print_icon.gif

print_icon.gif

193 ms

newsitem_icon.gif

newsitem_icon.gif

203 ms

input_background.gif

input_background.gif

114 ms

search_icon.gif

search_icon.gif

112 ms

logo.jpg

logo.jpg

106 ms

bullet.gif

bullet.gif

107 ms

link_icon.gif

link_icon.gif

111 ms

lock_icon.gif

lock_icon.gif

220 ms

topic_icon.gif

topic_icon.gif

214 ms

Header.png

Header.png

216 ms

site_icon.gif

site_icon.gif

215 ms

folder_icon.gif

folder_icon.gif

234 ms

GroupSpace.gif

GroupSpace.gif

220 ms

Bottom.png

Bottom.png

314 ms

HeaderCalendar.png

HeaderCalendar.png

315 ms

plone_powered.gif

plone_powered.gif

318 ms

colophon_sec508.gif

colophon_sec508.gif

320 ms

colophon_wai-aa.gif

colophon_wai-aa.gif

331 ms

colophon_xhtml.png

colophon_xhtml.png

328 ms

colophon_css.png

colophon_css.png

411 ms

colophon_anybrowser.png

colophon_anybrowser.png

414 ms

ploneStyles8431.css

ploneStyles8431.css

106 ms

ploneStyles8309.css

ploneStyles8309.css

104 ms

ploneStyles4239.css

ploneStyles4239.css

105 ms

ploneStyles9441.css

ploneStyles9441.css

105 ms

Accessibility Review

pratic.ens-lyon.fr accessibility score

94

Accessibility Issues

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

pratic.ens-lyon.fr best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

pratic.ens-lyon.fr SEO score

67

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

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 Pratic.ens-lyon.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 Pratic.ens-lyon.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

pratic.ens-lyon.fr

Open Graph description is not detected on the main page of Pratic Ens Lyon. 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: