Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

supsi.ch

Scuola universitaria professionale della Svizzera italiana - SUPSI

Page Load Speed

5 sec in total

First Response

405 ms

Resources Loaded

4.1 sec

Page Rendered

450 ms

supsi.ch screenshot

About Website

Click here to check amazing SUPSI content for Italy. Otherwise, check out these important facts you probably never knew about supsi.ch

SUPSI è una scuola universitaria professionale riconosciuta dalla Confederazione Svizzera. Offre formazioni Bachelor e Master e corsi di Formazione continua.

Visit supsi.ch

Key Findings

We analyzed Supsi.ch page load time and found that the first response time was 405 ms and then it took 4.6 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

supsi.ch performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value18.9 s

0/100

10%

LCP (Largest Contentful Paint)

Value37.6 s

0/100

25%

SI (Speed Index)

Value25.7 s

0/100

10%

TBT (Total Blocking Time)

Value740 ms

40/100

30%

CLS (Cumulative Layout Shift)

Value0.185

66/100

15%

TTI (Time to Interactive)

Value38.8 s

0/100

10%

Network Requests Diagram

supsi.ch

405 ms

supsi.ch

442 ms

www.supsi.ch

859 ms

combo

811 ms

clay.css

869 ms

Our browser made a total of 86 requests to load all elements on the main page. We found that 97% of them (83 requests) were addressed to the original Supsi.ch, 2% (2 requests) were made to Supsi.matomo.cloud and 1% (1 request) were made to Cdn.matomo.cloud. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Supsi.ch.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.7 MB (46%)

Content Size

5.8 MB

After Optimization

3.1 MB

In fact, the total size of Supsi.ch main page is 5.8 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. 60% of websites need less resources to load. Images take 4.2 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 142.8 kB

  • Original 167.2 kB
  • After minification 140.2 kB
  • After compression 24.4 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 27.0 kB, which is 16% 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 142.8 kB or 85% of the original size.

Image Optimization

-36%

Potential reduce by 1.5 MB

  • Original 4.2 MB
  • After minification 2.7 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. Obviously, SUPSI needs image optimization as it can save up to 1.5 MB or 36% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-72%

Potential reduce by 1.0 MB

  • Original 1.4 MB
  • After minification 1.4 MB
  • After compression 405.3 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 1.0 MB or 72% of the original size.

Requests Breakdown

Number of requests can be reduced by 70 (85%)

Requests Now

82

After Optimization

12

The browser has sent 82 CSS, Javascripts, AJAX and image requests in order to completely render the main page of SUPSI. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 67 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

supsi.ch accessibility score

90

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

[role]s are not contained by their required parent element

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

supsi.ch best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

supsi.ch SEO score

93

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

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

    IT

  • Language Claimed

    IT

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Supsi.ch can be misinterpreted by Google and other search engines. Our service has detected that Italian is used on the page, and it matches the claimed language. Our system also found out that Supsi.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 data is detected on the main page of SUPSI. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: