Tools & Wizards About Us
ifht.rwth-aachen.de screenshot

Report Summary

  • 54

    Performance

    Renders faster than
    71% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 66% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

ifht.rwth-aachen.de

RWTH AACHEN UNIVERSITY High Voltage Equipment and Grids, Digitalization and Energy Economics - English

Page Load Speed

7.4 sec in total

First Response

996 ms

Resources Loaded

6.2 sec

Page Rendered

171 ms

ifht.rwth-aachen.de screenshot

About Website

Welcome to ifht.rwth-aachen.de homepage info - get ready to check Ifht RWTH AACHEN best content for Germany right away, or after learning these important things about ifht.rwth-aachen.de

RWTH Aachen University - High Voltage Equipment and Grids, Digitalization and Energy Economics - Homepage

Visit ifht.rwth-aachen.de

Key Findings

We analyzed Ifht.rwth-aachen.de page load time and found that the first response time was 996 ms and then it took 6.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

ifht.rwth-aachen.de performance score

54

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

9/100

10%

LCP (Largest Contentful Paint)

Value5.4 s

21/100

25%

SI (Speed Index)

Value5.1 s

61/100

10%

TBT (Total Blocking Time)

Value180 ms

92/100

30%

CLS (Cumulative Layout Shift)

Value0.262

47/100

15%

TTI (Time to Interactive)

Value5.4 s

72/100

10%

Network Requests Diagram

ifht.rwth-aachen.de

996 ms

www.iaew.rwth-aachen.de

1347 ms

455 ms

aw_mobile.asp

228 ms

styles.css

555 ms

Our browser made a total of 34 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Ifht.rwth-aachen.de, 97% (33 requests) were made to Iaew.rwth-aachen.de. The less responsive or slowest element that took the longest time to load (1.5 sec) relates to the external source Iaew.rwth-aachen.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 104.8 kB (8%)

Content Size

1.3 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ifht.rwth-aachen.de main page is 1.3 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. 30% of websites need less resources to load. Images take 967.9 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 22.7 kB

  • Original 29.2 kB
  • After minification 27.9 kB
  • After compression 6.5 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 22.7 kB or 78% of the original size.

Image Optimization

-2%

Potential reduce by 16.9 kB

  • Original 967.9 kB
  • After minification 950.9 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. Ifht RWTH AACHEN images are well optimized though.

JavaScript Optimization

-18%

Potential reduce by 49.6 kB

  • Original 270.1 kB
  • After minification 269.5 kB
  • After compression 220.4 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 49.6 kB or 18% of the original size.

CSS Optimization

-26%

Potential reduce by 15.5 kB

  • Original 59.4 kB
  • After minification 59.4 kB
  • After compression 43.9 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. Ifht.rwth-aachen.de needs all CSS files to be minified and compressed as it can save up to 15.5 kB or 26% of the original size.

Requests Breakdown

Number of requests can be reduced by 16 (52%)

Requests Now

31

After Optimization

15

  • Images
  • JavaScript
  • CSS

The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ifht RWTH AACHEN. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

ifht.rwth-aachen.de

ifht.rwth-aachen.de

996 ms

www.iaew.rwth-aachen.de

www.iaew.rwth-aachen.de

1347 ms

455 ms

aw_mobile.asp

aw_mobile.asp

228 ms

styles.css

styles.css

555 ms

jquery-3.6.0.js

jquery-3.6.0.js

1298 ms

jquery.ui-1.13.0.js

jquery.ui-1.13.0.js

1408 ms

__basic-behaviour.js

__basic-behaviour.js

567 ms

__base-modules.js

__base-modules.js

682 ms

__base-modules-2.js

__base-modules-2.js

899 ms

__rwth.js

__rwth.js

666 ms

customscript.js

customscript.js

674 ms

aw_mobile_jquery.js

aw_mobile_jquery.js

776 ms

show_picture.asp

show_picture.asp

214 ms

icon-sprites.png

icon-sprites.png

217 ms

teaser-wrapper-small-sprite.png

teaser-wrapper-small-sprite.png

108 ms

show_picture.asp

show_picture.asp

443 ms

show_picture.asp

show_picture.asp

1527 ms

show_picture.asp

show_picture.asp

980 ms

show_picture.asp

show_picture.asp

953 ms

show_picture.asp

show_picture.asp

1063 ms

show_picture.asp

show_picture.asp

535 ms

show_picture.asp

show_picture.asp

1205 ms

show_picture.asp

show_picture.asp

960 ms

border-50.png

border-50.png

1061 ms

dotted-line-persona.png

dotted-line-persona.png

1067 ms

line-color-teaser.png

line-color-teaser.png

1089 ms

show_picture.asp

show_picture.asp

1275 ms

gps16.png

gps16.png

1169 ms

border-25.png

border-25.png

1172 ms

icon-sprites-1.png

icon-sprites-1.png

1200 ms

tablet.css

tablet.css

216 ms

tablet-portrait.css

tablet-portrait.css

225 ms

print.css

print.css

110 ms

Accessibility Review

ifht.rwth-aachen.de accessibility score

87

Accessibility Issues

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

ifht.rwth-aachen.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

SEO Factors

ifht.rwth-aachen.de SEO score

100

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

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 Ifht.rwth-aachen.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 Ifht.rwth-aachen.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

ifht.rwth-aachen.de

Open Graph description is not detected on the main page of Ifht RWTH AACHEN. 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: