Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 62% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

comem.ch

Département COMEM

Page Load Speed

2.8 sec in total

First Response

291 ms

Resources Loaded

2.1 sec

Page Rendered

359 ms

comem.ch screenshot

About Website

Visit comem.ch now to see the best up-to-date COMEM content for Switzerland and also check out these interesting facts you probably never knew about comem.ch

Le département COMEM+ de la HEIG-VD comprend la formation de Bachelor en Ingénierie des médias et l’Institut de recherche MEI. Il est basé à Yverdon-les-Bains en Suisse romande et fait partie de la HE...

Visit comem.ch

Key Findings

We analyzed Comem.ch page load time and found that the first response time was 291 ms and then it took 2.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

comem.ch performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value7.3 s

5/100

25%

SI (Speed Index)

Value7.9 s

23/100

10%

TBT (Total Blocking Time)

Value1,110 ms

23/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value8.5 s

38/100

10%

Network Requests Diagram

comem.ch

291 ms

comem

559 ms

application.css

462 ms

Telerik.Web.UI.WebResource.axd

194 ms

WebResource.axd

280 ms

Our browser made a total of 57 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Comem.ch, 91% (52 requests) were made to Heig-vd.ch and 5% (3 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (653 ms) relates to the external source Heig-vd.ch.

Page Optimization Overview & Recommendations

Page size can be reduced by 557.3 kB (47%)

Content Size

1.2 MB

After Optimization

640.8 kB

In fact, the total size of Comem.ch main page is 1.2 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. 40% of websites need less resources to load. Images take 527.2 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 33.6 kB

  • Original 45.0 kB
  • After minification 41.6 kB
  • After compression 11.5 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 33.6 kB or 75% of the original size.

Image Optimization

-15%

Potential reduce by 78.2 kB

  • Original 527.2 kB
  • After minification 449.0 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, COMEM needs image optimization as it can save up to 78.2 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-69%

Potential reduce by 344.9 kB

  • Original 499.9 kB
  • After minification 491.8 kB
  • After compression 155.0 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 344.9 kB or 69% of the original size.

CSS Optimization

-80%

Potential reduce by 100.7 kB

  • Original 126.0 kB
  • After minification 125.7 kB
  • After compression 25.3 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. Comem.ch needs all CSS files to be minified and compressed as it can save up to 100.7 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (13%)

Requests Now

54

After Optimization

47

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of COMEM. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

comem.ch accessibility score

86

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

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

Links do not have a discernible name

Best Practices

comem.ch 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

comem.ch SEO score

85

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

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 Comem.ch 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 Comem.ch 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

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