Tools & Wizards About Us
auditoires-physique.epfl.ch screenshot

Report Summary

  • 37

    Performance

    Renders faster than
    57% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 46% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

auditoires-physique.epfl.ch

Accueil – Expériences en auditoire

Page Load Speed

1.8 sec in total

First Response

613 ms

Resources Loaded

1 sec

Page Rendered

152 ms

auditoires-physique.epfl.ch screenshot

About Website

Click here to check amazing Auditoire Sphysique Epfl content for Switzerland. Otherwise, check out these important facts you probably never knew about auditoires-physique.epfl.ch

Visit auditoires-physique.epfl.ch

Key Findings

We analyzed Auditoires-physique.epfl.ch page load time and found that the first response time was 613 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

auditoires-physique.epfl.ch performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

9/100

10%

LCP (Largest Contentful Paint)

Value11.8 s

0/100

25%

SI (Speed Index)

Value7.4 s

28/100

10%

TBT (Total Blocking Time)

Value470 ms

61/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value40.1 s

0/100

10%

Network Requests Diagram

auditoires-physique.epfl.ch

613 ms

jquery.min.js

31 ms

stylesheet.css

192 ms

panier.css

200 ms

logo150e2.gif

192 ms

Our browser made a total of 10 requests to load all elements on the main page. We found that 90% of them (9 requests) were addressed to the original Auditoires-physique.epfl.ch, 10% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (613 ms) belongs to the original domain Auditoires-physique.epfl.ch.

Page Optimization Overview & Recommendations

Page size can be reduced by 22.5 kB (83%)

Content Size

27.2 kB

After Optimization

4.7 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Auditoires-physique.epfl.ch main page is 27.2 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. Only 10% of websites need less resources to load. HTML takes 22.7 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 19.6 kB

  • Original 22.7 kB
  • After minification 21.6 kB
  • After compression 3.0 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. 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 19.6 kB or 87% of the original size.

Image Optimization

-5%

Potential reduce by 30 B

  • Original 593 B
  • After minification 563 B

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. Auditoire Sphysique Epfl images are well optimized though.

CSS Optimization

-72%

Potential reduce by 2.8 kB

  • Original 3.9 kB
  • After minification 2.8 kB
  • After compression 1.1 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. Auditoires-physique.epfl.ch needs all CSS files to be minified and compressed as it can save up to 2.8 kB or 72% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

9

After Optimization

9

  • Images
  • JavaScript
  • CSS

The browser has sent 9 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Auditoire Sphysique Epfl. According to our analytics all requests are already optimized.

Network Requests Diagram

auditoires-physique.epfl.ch

auditoires-physique.epfl.ch

613 ms

jquery.min.js

jquery.min.js

31 ms

stylesheet.css

stylesheet.css

192 ms

panier.css

panier.css

200 ms

logo150e2.gif

logo150e2.gif

192 ms

epfl_logo.gif

epfl_logo.gif

193 ms

txt_m_tp.png

txt_m_tp.png

193 ms

graph_entree.gif

graph_entree.gif

192 ms

pixel.gif

pixel.gif

321 ms

epfl_text.gif

epfl_text.gif

330 ms

Accessibility Review

auditoires-physique.epfl.ch accessibility score

78

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

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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

Best Practices

auditoires-physique.epfl.ch 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

SEO Factors

auditoires-physique.epfl.ch SEO score

82

Search Engine Optimization Advices

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 doesn't use legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    FR

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-15

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Auditoires-physique.epfl.ch can be misinterpreted by Google and other search engines. Our service has detected that French is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Auditoires-physique.epfl.ch main page’s claimed encoding is iso-8859-15. 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

auditoires-physique.epfl.ch

Open Graph description is not detected on the main page of Auditoire Sphysique Epfl. 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: