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wzl.rwth-aachen.de screenshot

Report Summary

  • 0

    Performance

  • 0

    Accessibility

  • 0

    Best Practices

  • 0

    SEO

wzl.rwth-aachen.de

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

Page Load Speed

4.7 sec in total

First Response

565 ms

Resources Loaded

3.8 sec

Page Rendered

317 ms

wzl.rwth-aachen.de screenshot

About Website

Click here to check amazing WZL RWTH AACHEN content for Germany. Otherwise, check out these important facts you probably never knew about wzl.rwth-aachen.de

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

Visit wzl.rwth-aachen.de

Key Findings

We analyzed Wzl.rwth-aachen.de page load time and found that the first response time was 565 ms and then it took 4.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

wzl.rwth-aachen.de performance score

0

Network Requests Diagram

index.htm

565 ms

rwth-styles.css

909 ms

__basic-behaviour.js

821 ms

__base-modules.js

817 ms

__base-modules-2.js

857 ms

Our browser made a total of 38 requests to load all elements on the main page. We found that all of those requests were addressed to Wzl.rwth-aachen.de and no external sources were called. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Wzl.rwth-aachen.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 545.9 kB (14%)

Content Size

3.8 MB

After Optimization

3.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Wzl.rwth-aachen.de main page is 3.8 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. 25% of websites need less resources to load. Images take 3.3 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 35.1 kB

  • Original 44.2 kB
  • After minification 37.8 kB
  • After compression 9.1 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 6.4 kB, which is 15% 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 35.1 kB or 79% of the original size.

Image Optimization

-5%

Potential reduce by 153.9 kB

  • Original 3.3 MB
  • After minification 3.1 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. WZL RWTH AACHEN images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 209.0 kB

  • Original 304.4 kB
  • After minification 303.5 kB
  • After compression 95.5 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 209.0 kB or 69% of the original size.

CSS Optimization

-87%

Potential reduce by 147.9 kB

  • Original 170.6 kB
  • After minification 138.8 kB
  • After compression 22.7 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. Wzl.rwth-aachen.de needs all CSS files to be minified and compressed as it can save up to 147.9 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (13%)

Requests Now

31

After Optimization

27

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of WZL 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 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

index.htm

index.htm

565 ms

rwth-styles.css

rwth-styles.css

909 ms

__basic-behaviour.js

__basic-behaviour.js

821 ms

__base-modules.js

__base-modules.js

817 ms

__base-modules-2.js

__base-modules-2.js

857 ms

jquery.getURLParam.js

jquery.getURLParam.js

513 ms

jquery.tablesorter.min.js

jquery.tablesorter.min.js

803 ms

jquery.tablesorter.pager.js

jquery.tablesorter.pager.js

886 ms

rwth_tablesorter.js

rwth_tablesorter.js

1073 ms

jquery.form.js

jquery.form.js

1304 ms

customscript.htm

customscript.htm

1146 ms

wle_tracker.js

wle_tracker.js

773 ms

rwth_wzl_logo_blau3.jpg

rwth_wzl_logo_blau3.jpg

106 ms

icon-sprites.png

icon-sprites.png

106 ms

fakultaeten-bg.png

fakultaeten-bg.png

104 ms

teaser-wrapper-sprite.png

teaser-wrapper-sprite.png

96 ms

Exzellenzcluster.jpg

Exzellenzcluster.jpg

477 ms

MQ.jpg

MQ.jpg

1175 ms

PSPM.jpg

PSPM.jpg

568 ms

TF.jpg

TF.jpg

669 ms

WM_1.jpg

WM_1.jpg

605 ms

professoren_b300.jpg

professoren_b300.jpg

230 ms

bild_brand_halle_2016_02_05.jpg

bild_brand_halle_2016_02_05.jpg

327 ms

prof_weck_hall_of_fame_2015_300px.jpg

prof_weck_hall_of_fame_2015_300px.jpg

426 ms

exzellenzcluster_b300.jpg

exzellenzcluster_b300.jpg

1084 ms

weiterbildung_b300.jpg

weiterbildung_b300.jpg

1492 ms

shutterstock_129873458_300pxbreit.png

shutterstock_129873458_300pxbreit.png

1087 ms

kbm%20globales%20komplexit%C3%A4tsmanagement_3.jpg

kbm%20globales%20komplexit%C3%A4tsmanagement_3.jpg

1084 ms

kontakt_b300.jpg

kontakt_b300.jpg

1552 ms

border-25.png

border-25.png

1187 ms

wle_tracker.gif

wle_tracker.gif

1261 ms

tooltip.gif

tooltip.gif

1449 ms

dotted-line-navigator.png

dotted-line-navigator.png

1451 ms

first.gif

first.gif

1452 ms

previous.gif

previous.gif

1452 ms

next.gif

next.gif

1504 ms

last.gif

last.gif

1598 ms

print.css

print.css

214 ms

SEO Factors

wzl.rwth-aachen.de SEO score

0

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    DE

  • Encoding

    WINDOWS-1252

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Wzl.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 does not match the claimed German language. Our system also found out that Wzl.rwth-aachen.de main page’s claimed encoding is windows-1252. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

wzl.rwth-aachen.de

Open Graph description is not detected on the main page of WZL 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: