Tools & Wizards About Us
zimt.uni-siegen.de screenshot

Report Summary

  • 70

    Performance

    Renders faster than
    81% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

zimt.uni-siegen.de

Zentrum für Informations- und Medientechnologie | Zentrum für Informations- und Medientechnologie (ZIMT)

Page Load Speed

4.3 sec in total

First Response

343 ms

Resources Loaded

3.8 sec

Page Rendered

116 ms

zimt.uni-siegen.de screenshot

About Website

Visit zimt.uni-siegen.de now to see the best up-to-date ZIMT Uni Siegen content for Germany and also check out these interesting facts you probably never knew about zimt.uni-siegen.de

Das Zentrum für Informations- und Medientechnologie ist eine zentrale Betriebseinheit der Universität Siegen.

Visit zimt.uni-siegen.de

Key Findings

We analyzed Zimt.uni-siegen.de page load time and found that the first response time was 343 ms and then it took 3.9 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

zimt.uni-siegen.de performance score

70

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

45/100

10%

LCP (Largest Contentful Paint)

Value3.2 s

74/100

25%

SI (Speed Index)

Value6.1 s

45/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.376

28/100

15%

TTI (Time to Interactive)

Value4.0 s

87/100

10%

Network Requests Diagram

zimt.uni-siegen.de

343 ms

zimt.uni-siegen.de

1207 ms

zimt_overlay.css

730 ms

my_layout_z4.css

825 ms

neues_cd_style.css

810 ms

Our browser made a total of 48 requests to load all elements on the main page. We found that 23% of them (11 requests) were addressed to the original Zimt.uni-siegen.de, 75% (36 requests) were made to Uni-siegen.de and 2% (1 request) were made to Zaehlwerk.zimt.uni-siegen.de. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Zimt.uni-siegen.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 61.3 kB (15%)

Content Size

421.0 kB

After Optimization

359.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zimt.uni-siegen.de main page is 421.0 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. 20% of websites need less resources to load. Images take 285.4 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 21.8 kB

  • Original 28.2 kB
  • After minification 28.0 kB
  • After compression 6.4 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 21.8 kB or 77% of the original size.

Image Optimization

-6%

Potential reduce by 18.4 kB

  • Original 285.4 kB
  • After minification 267.0 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. ZIMT Uni Siegen images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 2.4 kB

  • Original 71.6 kB
  • After minification 71.6 kB
  • After compression 69.2 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. This website has mostly compressed JavaScripts.

CSS Optimization

-52%

Potential reduce by 18.7 kB

  • Original 35.8 kB
  • After minification 30.3 kB
  • After compression 17.1 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. Zimt.uni-siegen.de needs all CSS files to be minified and compressed as it can save up to 18.7 kB or 52% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (59%)

Requests Now

44

After Optimization

18

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ZIMT Uni Siegen. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 18 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

zimt.uni-siegen.de

zimt.uni-siegen.de

343 ms

zimt.uni-siegen.de

zimt.uni-siegen.de

1207 ms

zimt_overlay.css

zimt_overlay.css

730 ms

my_layout_z4.css

my_layout_z4.css

825 ms

neues_cd_style.css

neues_cd_style.css

810 ms

jquery-1.12.4.min.js

jquery-1.12.4.min.js

936 ms

jquery-migrate-1.4.1.min.js

jquery-migrate-1.4.1.min.js

825 ms

quicklink.js

quicklink.js

802 ms

ausklappen_suche.js

ausklappen_suche.js

811 ms

jquery.fancybox-1.3.4.css

jquery.fancybox-1.3.4.css

858 ms

jquery.fancybox-1.3.4.pack.js

jquery.fancybox-1.3.4.pack.js

928 ms

jquery.mousewheel-3.0.4.pack.js

jquery.mousewheel-3.0.4.pack.js

937 ms

function.js

function.js

945 ms

slicknav.css

slicknav.css

947 ms

mobile.css

mobile.css

983 ms

slicknav_fl.js

slicknav_fl.js

1061 ms

mobilebox.js

mobilebox.js

1060 ms

base.css

base.css

240 ms

basemod_321.css

basemod_321.css

253 ms

content.css

content.css

267 ms

z4.css

z4.css

288 ms

print_003_draft.css

print_003_draft.css

366 ms

z0_print.css

z0_print.css

372 ms

sonne.css

sonne.css

130 ms

zimt_sonne.css

zimt_sonne.css

144 ms

zimt_sonne2.css

zimt_sonne2.css

130 ms

presse.css

presse.css

134 ms

in_work.css

in_work.css

134 ms

myfontswebfontskit.css

myfontswebfontskit.css

130 ms

neues_logo.jpg

neues_logo.jpg

246 ms

portal-digitale-lehre.png

portal-digitale-lehre.png

529 ms

rss.svg

rss.svg

360 ms

moodle-logo2.gif

moodle-logo2.gif

465 ms

xims_logo.png

xims_logo.png

424 ms

random-image

random-image

670 ms

uni-siegen.svg

uni-siegen.svg

150 ms

sitemap.jpg

sitemap.jpg

131 ms

random-image

random-image

268 ms

kante_blau.svg

kante_blau.svg

136 ms

kante_weiss.svg

kante_weiss.svg

132 ms

iconmail.gif

iconmail.gif

129 ms

organe_schraeg.gif

organe_schraeg.gif

233 ms

font.woff

font.woff

592 ms

piwik.js

piwik.js

711 ms

pfeil-rechts-blau.jpg

pfeil-rechts-blau.jpg

346 ms

unis-dachmarke_weiss.svg

unis-dachmarke_weiss.svg

347 ms

pfeil-rechts-blau.jpg

pfeil-rechts-blau.jpg

139 ms

unis-dachmarke_weiss.svg

unis-dachmarke_weiss.svg

131 ms

Accessibility Review

zimt.uni-siegen.de accessibility score

82

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

zimt.uni-siegen.de best practices score

58

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

zimt.uni-siegen.de SEO score

85

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

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

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

zimt.uni-siegen.de

Open Graph description is not detected on the main page of ZIMT Uni Siegen. 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: