Tools & Wizards About Us
sts.uni-duesseldorf.de screenshot

Report Summary

  • 96

    Performance

    Renders faster than
    94% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 77% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 95

    SEO

    Google-friendlier than
    91% of websites

sts.uni-duesseldorf.de

Anmelden | HHU Düsseldorf

Page Load Speed

1.4 sec in total

First Response

279 ms

Resources Loaded

1 sec

Page Rendered

93 ms

sts.uni-duesseldorf.de screenshot

About Website

Welcome to sts.uni-duesseldorf.de homepage info - get ready to check Sts Uni Duesseldorf best content for Germany right away, or after learning these important things about sts.uni-duesseldorf.de

Weblogin der Heinrich-Heine-Universität Düsseldorf

Visit sts.uni-duesseldorf.de

Key Findings

We analyzed Sts.uni-duesseldorf.de page load time and found that the first response time was 279 ms and then it took 1.1 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

sts.uni-duesseldorf.de performance score

96

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

82/100

10%

LCP (Largest Contentful Paint)

Value2.1 s

96/100

25%

SI (Speed Index)

Value3.7 s

86/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.1 s

99/100

10%

Network Requests Diagram

sts.uni-duesseldorf.de

279 ms

Login.aspx

179 ms

hhud_login.css

178 ms

dropkick.css

195 ms

jquery.min.js

522 ms

Our browser made a total of 10 requests to load all elements on the main page. We found that all of those requests were addressed to Sts.uni-duesseldorf.de and no external sources were called. The less responsive or slowest element that took the longest time to load (522 ms) belongs to the original domain Sts.uni-duesseldorf.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 82.7 kB (67%)

Content Size

124.3 kB

After Optimization

41.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sts.uni-duesseldorf.de main page is 124.3 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 5% of websites need less resources to load. Javascripts take 99.9 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 6.2 kB

  • Original 8.9 kB
  • After minification 7.7 kB
  • After compression 2.7 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. This page needs HTML code to be minified as it can gain 1.2 kB, which is 13% 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 6.2 kB or 70% of the original size.

Image Optimization

-5%

Potential reduce by 19 B

  • Original 377 B
  • After minification 358 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. Sts Uni Duesseldorf images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 64.3 kB

  • Original 99.9 kB
  • After minification 99.8 kB
  • After compression 35.6 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 64.3 kB or 64% of the original size.

CSS Optimization

-81%

Potential reduce by 12.2 kB

  • Original 15.2 kB
  • After minification 9.9 kB
  • After compression 2.9 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. Sts.uni-duesseldorf.de needs all CSS files to be minified and compressed as it can save up to 12.2 kB or 81% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

8

After Optimization

8

  • Images
  • JavaScript
  • CSS

The browser has sent 8 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sts Uni Duesseldorf. According to our analytics all requests are already optimized.

Network Requests Diagram

sts.uni-duesseldorf.de

sts.uni-duesseldorf.de

279 ms

Login.aspx

Login.aspx

179 ms

hhud_login.css

hhud_login.css

178 ms

dropkick.css

dropkick.css

195 ms

jquery.min.js

jquery.min.js

522 ms

jquery.dropkick.min.js

jquery.dropkick.min.js

281 ms

uni_duesseldorf_logo.gif

uni_duesseldorf_logo.gif

98 ms

zielgruppen_navi_blau.jpg

zielgruppen_navi_blau.jpg

94 ms

link-icon-mail.gif

link-icon-mail.gif

93 ms

hhu_footer_dot.gif

hhu_footer_dot.gif

94 ms

Accessibility Review

sts.uni-duesseldorf.de accessibility score

91

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

sts.uni-duesseldorf.de 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

SEO Factors

sts.uni-duesseldorf.de SEO score

95

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 uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    DE

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sts.uni-duesseldorf.de can be misinterpreted by Google and other search engines. Our service has detected that German 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 Sts.uni-duesseldorf.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

sts.uni-duesseldorf.de

Open Graph description is not detected on the main page of Sts Uni Duesseldorf. 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: