Tools & Wizards About Us
elearning.charite.de screenshot

Report Summary

  • 76

    Performance

    Renders faster than
    84% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

elearning.charite.de

Team eLearning - Charité – Universitätsmedizin Berlin

Page Load Speed

2.2 sec in total

First Response

429 ms

Resources Loaded

1.7 sec

Page Rendered

101 ms

elearning.charite.de screenshot

About Website

Welcome to elearning.charite.de homepage info - get ready to check ELearning Charite best content for Germany right away, or after learning these important things about elearning.charite.de

Das Team eLearning in Berlin unterstützt bei der Integration digitaler Medien in der Lehre. Informieren Sie sich über das Blended Learning Konzept.

Visit elearning.charite.de

Key Findings

We analyzed Elearning.charite.de page load time and found that the first response time was 429 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

elearning.charite.de performance score

76

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.8 s

90/100

10%

LCP (Largest Contentful Paint)

Value4.4 s

40/100

25%

SI (Speed Index)

Value5.9 s

48/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.021

100/100

15%

TTI (Time to Interactive)

Value5.2 s

74/100

10%

Network Requests Diagram

elearning.charite.de

429 ms

stylesheet_6bb5617b15.css

105 ms

main_ms.css

207 ms

content.css

211 ms

content_ms.css

208 ms

Our browser made a total of 33 requests to load all elements on the main page. We found that all of those requests were addressed to Elearning.charite.de and no external sources were called. The less responsive or slowest element that took the longest time to load (689 ms) belongs to the original domain Elearning.charite.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 120.8 kB (40%)

Content Size

304.2 kB

After Optimization

183.4 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Elearning.charite.de main page is 304.2 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. 20% of websites need less resources to load. Images take 211.0 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 12.0 kB

  • Original 16.2 kB
  • After minification 14.4 kB
  • After compression 4.2 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 1.8 kB, which is 11% 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 12.0 kB or 74% of the original size.

Image Optimization

-21%

Potential reduce by 44.0 kB

  • Original 211.0 kB
  • After minification 166.9 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. Obviously, ELearning Charite needs image optimization as it can save up to 44.0 kB or 21% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-84%

Potential reduce by 64.7 kB

  • Original 77.0 kB
  • After minification 59.6 kB
  • After compression 12.3 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. Elearning.charite.de needs all CSS files to be minified and compressed as it can save up to 64.7 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (66%)

Requests Now

32

After Optimization

11

  • Images
  • JavaScript
  • CSS

The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ELearning Charite. 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 CSS and as a result speed up the page load time.

Network Requests Diagram

elearning.charite.de

elearning.charite.de

429 ms

stylesheet_6bb5617b15.css

stylesheet_6bb5617b15.css

105 ms

main_ms.css

main_ms.css

207 ms

content.css

content.css

211 ms

content_ms.css

content_ms.css

208 ms

main.js

main.js

218 ms

jquery-plugins.min.js

jquery-plugins.min.js

414 ms

functions.js

functions.js

219 ms

slightbox.css

slightbox.css

305 ms

arrow_left.gif

arrow_left.gif

104 ms

metanavi-colors.gif

metanavi-colors.gif

105 ms

eL_Startseite_01.jpg

eL_Startseite_01.jpg

521 ms

bg-logo.jpg

bg-logo.jpg

108 ms

logo.jpg

logo.jpg

106 ms

google-small-logo.png

google-small-logo.png

108 ms

search_button.gif

search_button.gif

203 ms

functions-divider.gif

functions-divider.gif

216 ms

german_flag.gif

german_flag.gif

201 ms

english_flag.gif

english_flag.gif

203 ms

bg_mainnavi.gif

bg_mainnavi.gif

200 ms

mainnavi_no.gif

mainnavi_no.gif

289 ms

icon-location.gif

icon-location.gif

300 ms

breadcrumb-divider-first.gif

breadcrumb-divider-first.gif

301 ms

breadcrumb-divider.gif

breadcrumb-divider.gif

302 ms

csm_e4_01_5adf2bf1f7.jpg

csm_e4_01_5adf2bf1f7.jpg

303 ms

bg-h-rightColumn.jpg

bg-h-rightColumn.jpg

390 ms

external-link.gif

external-link.gif

402 ms

bg-pagefunction.jpg

bg-pagefunction.jpg

404 ms

pagefunctions-tip.gif

pagefunctions-tip.gif

405 ms

pagefunctions-pdf.gif

pagefunctions-pdf.gif

406 ms

pagefunctions-print.gif

pagefunctions-print.gif

491 ms

sprite.png

sprite.png

689 ms

print.css

print.css

104 ms

Accessibility Review

elearning.charite.de 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

elearning.charite.de 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

High

Page has valid source maps

SEO Factors

elearning.charite.de 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

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Elearning.charite.de 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 Elearning.charite.de 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

elearning.charite.de

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