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casus.eu screenshot

Report Summary

  • 60

    Performance

    Renders faster than
    75% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

casus.eu

Instruct gGmbH / CASUS - fallbasiertes Lernmanagementsystem

Page Load Speed

4.2 sec in total

First Response

481 ms

Resources Loaded

3.2 sec

Page Rendered

483 ms

casus.eu screenshot

About Website

Visit casus.eu now to see the best up-to-date CASUS content and also check out these interesting facts you probably never knew about casus.eu

CASUS ist ein fallbasiertes Lernsystem, das für die studentische Ausbildung im medizinischen Bereich entwickelt wurde. 20 Jahre Erfahrung stecken in CASUS.

Visit casus.eu

Key Findings

We analyzed Casus.eu page load time and found that the first response time was 481 ms and then it took 3.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

casus.eu performance score

60

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

40/100

10%

LCP (Largest Contentful Paint)

Value4.9 s

28/100

25%

SI (Speed Index)

Value6.5 s

38/100

10%

TBT (Total Blocking Time)

Value230 ms

86/100

30%

CLS (Cumulative Layout Shift)

Value0.1

90/100

15%

TTI (Time to Interactive)

Value6.2 s

62/100

10%

Network Requests Diagram

www.instruct.eu

481 ms

software-virtuelle-patienten

291 ms

jquery-2.1.1.min.js

225 ms

loader.js

314 ms

modernizr.js

312 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Casus.eu, 10% (4 requests) were made to Fonts.gstatic.com and 2% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (927 ms) relates to the external source Instruct.eu.

Page Optimization Overview & Recommendations

Page size can be reduced by 97.9 kB (11%)

Content Size

925.2 kB

After Optimization

827.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Casus.eu main page is 925.2 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. 35% of websites need less resources to load. Images take 768.3 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 19.6 kB

  • Original 26.2 kB
  • After minification 26.2 kB
  • After compression 6.7 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 75% of the original size.

Image Optimization

-7%

Potential reduce by 50.4 kB

  • Original 768.3 kB
  • After minification 717.9 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. CASUS images are well optimized though.

JavaScript Optimization

-14%

Potential reduce by 13.2 kB

  • Original 94.4 kB
  • After minification 94.4 kB
  • After compression 81.2 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 13.2 kB or 14% of the original size.

CSS Optimization

-41%

Potential reduce by 14.7 kB

  • Original 36.3 kB
  • After minification 36.3 kB
  • After compression 21.6 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. Casus.eu needs all CSS files to be minified and compressed as it can save up to 14.7 kB or 41% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (27%)

Requests Now

30

After Optimization

22

  • Images
  • JavaScript
  • CSS

The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CASUS. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.instruct.eu

www.instruct.eu

481 ms

software-virtuelle-patienten

software-virtuelle-patienten

291 ms

jquery-2.1.1.min.js

jquery-2.1.1.min.js

225 ms

loader.js

loader.js

314 ms

modernizr.js

modernizr.js

312 ms

css

css

39 ms

casus-font.css

casus-font.css

337 ms

materialize.css

materialize.css

461 ms

style.css

style.css

335 ms

js

js

70 ms

materialize.min.js

materialize.min.js

392 ms

init.js

init.js

559 ms

logo.png

logo.png

217 ms

background_05.jpg

background_05.jpg

520 ms

icon_learning.png

icon_learning.png

220 ms

icon_cms.png

icon_cms.png

244 ms

icon_prof.png

icon_prof.png

276 ms

cropped-logo_didact.png

cropped-logo_didact.png

216 ms

logo_d-cosima_cmyk_300dpi.jpeg

logo_d-cosima_cmyk_300dpi.jpeg

242 ms

casus.jpg

casus.jpg

243 ms

logo.png

logo.png

326 ms

famulus.png

famulus.png

342 ms

mme_logo_1.gif

mme_logo_1.gif

342 ms

wordle3.png

wordle3.png

352 ms

vetvip.png

vetvip.png

390 ms

chlmu.jpg

chlmu.jpg

437 ms

vp-logo.jpg

vp-logo.jpg

450 ms

background_01.jpg

background_01.jpg

756 ms

index.php

index.php

691 ms

index.php

index.php

863 ms

index.php

index.php

890 ms

index.php

index.php

651 ms

Roboto-Light.woff

Roboto-Light.woff

659 ms

KFOlCnqEu92Fr1MmSU5fBBc9.ttf

KFOlCnqEu92Fr1MmSU5fBBc9.ttf

42 ms

Roboto-Thin.woff

Roboto-Thin.woff

788 ms

Roboto-Regular.woff

Roboto-Regular.woff

823 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

42 ms

Roboto-Medium.woff

Roboto-Medium.woff

877 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

136 ms

Roboto-Bold.woff

Roboto-Bold.woff

894 ms

KFOlCnqEu92Fr1MmWUlfBBc9.ttf

KFOlCnqEu92Fr1MmWUlfBBc9.ttf

136 ms

casus.woff

casus.woff

927 ms

Accessibility Review

casus.eu accessibility score

84

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.

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

casus.eu 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

casus.eu SEO score

84

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Casus.eu can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it matches the claimed language. Our system also found out that Casus.eu 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

casus.eu

Open Graph data is detected on the main page of CASUS. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: