Tools & Wizards About Us
lean-innovation.de screenshot

Report Summary

  • 60

    Performance

    Renders faster than
    75% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 51% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

lean-innovation.de

RWTH AACHEN UNIVERSITY Laboratory for Machine Tools and Production Engineering (WZL) of RWTH Aachen University - English

Page Load Speed

6.6 sec in total

First Response

752 ms

Resources Loaded

5.7 sec

Page Rendered

196 ms

lean-innovation.de screenshot

About Website

Visit lean-innovation.de now to see the best up-to-date Lean Innovation content and also check out these interesting facts you probably never knew about lean-innovation.de

RWTH Aachen University - Laboratory for Machine Tools and Production Engineering (WZL) of RWTH Aachen University - Homepage

Visit lean-innovation.de

Key Findings

We analyzed Lean-innovation.de page load time and found that the first response time was 752 ms and then it took 5.8 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

lean-innovation.de performance score

60

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value6.5 s

9/100

25%

SI (Speed Index)

Value5.3 s

58/100

10%

TBT (Total Blocking Time)

Value110 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.5 s

71/100

10%

Network Requests Diagram

93c34d1dbee9c833c1257a55003cd83f.htm

752 ms

93c34d1dbee9c833c1257a55003cd83f.htm

578 ms

www.wzl.rwth-aachen.de

152 ms

563 ms

aw_mobile.asp

424 ms

Our browser made a total of 40 requests to load all elements on the main page. We found that all of those requests were addressed to Lean-innovation.de and no external sources were called. The less responsive or slowest element that took the longest time to load (1.8 sec) relates to the external source Wzl.rwth-aachen.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 165.5 kB (11%)

Content Size

1.6 MB

After Optimization

1.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Lean-innovation.de main page is 1.6 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. 35% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 39.1 kB

  • Original 48.0 kB
  • After minification 46.6 kB
  • After compression 8.9 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 39.1 kB or 82% of the original size.

Image Optimization

-5%

Potential reduce by 61.4 kB

  • Original 1.2 MB
  • After minification 1.2 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. Lean Innovation images are well optimized though.

JavaScript Optimization

-21%

Potential reduce by 49.4 kB

  • Original 239.6 kB
  • After minification 239.0 kB
  • After compression 190.1 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 49.4 kB or 21% 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. Lean-innovation.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 (44%)

Requests Now

36

After Optimization

20

  • Images
  • JavaScript
  • CSS

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lean Innovation. 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

93c34d1dbee9c833c1257a55003cd83f.htm

93c34d1dbee9c833c1257a55003cd83f.htm

752 ms

93c34d1dbee9c833c1257a55003cd83f.htm

93c34d1dbee9c833c1257a55003cd83f.htm

578 ms

www.wzl.rwth-aachen.de

www.wzl.rwth-aachen.de

152 ms

563 ms

aw_mobile.asp

aw_mobile.asp

424 ms

styles.css

styles.css

748 ms

jquery-3.6.0.js

jquery-3.6.0.js

1186 ms

jquery.ui-1.13.0.js

jquery.ui-1.13.0.js

1448 ms

__basic-behaviour.js

__basic-behaviour.js

569 ms

__base-modules.js

__base-modules.js

780 ms

__base-modules-2.js

__base-modules-2.js

1026 ms

__rwth.js

__rwth.js

791 ms

customscript.js

customscript.js

854 ms

aw_mobile_jquery.js

aw_mobile_jquery.js

891 ms

show_picture.asp

show_picture.asp

214 ms

icon-sprites.png

icon-sprites.png

575 ms

teaser-wrapper-small-sprite.png

teaser-wrapper-small-sprite.png

108 ms

show_picture.asp

show_picture.asp

1416 ms

show_picture.asp

show_picture.asp

1124 ms

show_picture.asp

show_picture.asp

345 ms

show_picture.asp

show_picture.asp

1055 ms

show_picture.asp

show_picture.asp

1053 ms

show_picture.asp

show_picture.asp

894 ms

show_picture.asp

show_picture.asp

1365 ms

show_picture.asp

show_picture.asp

1117 ms

show_picture.asp

show_picture.asp

1476 ms

show_picture.asp

show_picture.asp

1595 ms

show_picture.asp

show_picture.asp

1338 ms

show_picture.asp

show_picture.asp

1683 ms

border-50.png

border-50.png

1448 ms

dotted-line-persona.png

dotted-line-persona.png

1476 ms

line-color-teaser.png

line-color-teaser.png

1525 ms

show_picture.asp

show_picture.asp

1562 ms

show_picture.asp

show_picture.asp

1793 ms

gps16.png

gps16.png

1586 ms

border-25.png

border-25.png

1635 ms

icon-sprites-1.png

icon-sprites-1.png

1675 ms

tablet.css

tablet.css

110 ms

tablet-portrait.css

tablet-portrait.css

111 ms

print.css

print.css

109 ms

Accessibility Review

lean-innovation.de accessibility score

81

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

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

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

lean-innovation.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

lean-innovation.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 Lean-innovation.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 Lean-innovation.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

lean-innovation.de

Open Graph description is not detected on the main page of Lean Innovation. 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: