Report Summary

  • 5

    Performance

    Renders faster than
    21% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 72% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

tu-dresden.de

Technische Universität Dresden — TU Dresden

Page Load Speed

45.1 sec in total

First Response

632 ms

Resources Loaded

27.1 sec

Page Rendered

17.4 sec

tu-dresden.de screenshot

About Website

Click here to check amazing TU Dresden content for Germany. Otherwise, check out these important facts you probably never knew about tu-dresden.de

TU Dresden: an excellent place to study, research and work. 43,000 people – 125 nations – one university. Inquisitive, dedicated, innovative – with prime connections to science, industry and society.

Visit tu-dresden.de

Key Findings

We analyzed Tu-dresden.de page load time and found that the first response time was 632 ms and then it took 44.5 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

tu-dresden.de performance score

5

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.3 s

1/100

10%

LCP (Largest Contentful Paint)

Value11.4 s

0/100

25%

SI (Speed Index)

Value13.9 s

1/100

10%

TBT (Total Blocking Time)

Value6,790 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.367

29/100

15%

TTI (Time to Interactive)

Value15.7 s

6/100

10%

Network Requests Diagram

tu-dresden.de

632 ms

tu-dresden.de

3113 ms

themetud.theme.webcms2cssanonymous.min-cachekey-b204d5722dc345c6c7adb5a9230989cb.css

204 ms

resourceplone.formwidget.contenttreecontenttree-cachekey-a70c5c2396a2908ccc76bfbcb0cc02c2.css

858 ms

themetud.theme.webcms2jslibs.min-cachekey-ec9c5806f9faf9e4c820d63f48c7d357.js

1190 ms

Our browser made a total of 40 requests to load all elements on the main page. We found that 98% of them (39 requests) were addressed to the original Tu-dresden.de, 3% (1 request) were made to Piwik.mz.tu-dresden.de. The less responsive or slowest element that took the longest time to load (15.5 sec) belongs to the original domain Tu-dresden.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 408.8 kB (22%)

Content Size

1.8 MB

After Optimization

1.4 MB

In fact, the total size of Tu-dresden.de main page is 1.8 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 1.6 MB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 92.8 kB

  • Original 103.6 kB
  • After minification 66.3 kB
  • After compression 10.8 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 37.3 kB, which is 36% 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 92.8 kB or 90% of the original size.

Image Optimization

-12%

Potential reduce by 193.9 kB

  • Original 1.6 MB
  • After minification 1.4 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, TU Dresden needs image optimization as it can save up to 193.9 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-70%

Potential reduce by 121.8 kB

  • Original 173.9 kB
  • After minification 166.2 kB
  • After compression 52.1 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 121.8 kB or 70% of the original size.

CSS Optimization

-71%

Potential reduce by 306 B

  • Original 431 B
  • After minification 282 B
  • After compression 125 B

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. Tu-dresden.de needs all CSS files to be minified and compressed as it can save up to 306 B or 71% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

28

After Optimization

28

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of TU Dresden. According to our analytics all requests are already optimized.

Accessibility Review

tu-dresden.de accessibility score

89

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

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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

tu-dresden.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

Missing source maps for large first-party JavaScript

SEO Factors

tu-dresden.de SEO score

90

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

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

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