Tools & Wizards About Us
zsb.uni-paderborn.de screenshot

Report Summary

  • 67

    Performance

    Renders faster than
    80% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 88

    SEO

    Google-friendlier than
    66% of websites

zsb.uni-paderborn.de

Zentrale Studienberatung (ZSB) (Universität Paderborn)

Page Load Speed

2.6 sec in total

First Response

472 ms

Resources Loaded

1.7 sec

Page Rendered

413 ms

zsb.uni-paderborn.de screenshot

About Website

Visit zsb.uni-paderborn.de now to see the best up-to-date ZSB Uni Paderborn content for Germany and also check out these interesting facts you probably never knew about zsb.uni-paderborn.de

Zentrale Studienberatung (ZSB)

Visit zsb.uni-paderborn.de

Key Findings

We analyzed Zsb.uni-paderborn.de page load time and found that the first response time was 472 ms and then it took 2.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

zsb.uni-paderborn.de performance score

67

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

64/100

10%

LCP (Largest Contentful Paint)

Value5.0 s

27/100

25%

SI (Speed Index)

Value4.8 s

68/100

10%

TBT (Total Blocking Time)

Value180 ms

92/100

30%

CLS (Cumulative Layout Shift)

Value0.055

98/100

15%

TTI (Time to Interactive)

Value7.0 s

52/100

10%

Network Requests Diagram

zsb.uni-paderborn.de

472 ms

news-basic.css

200 ms

normalize.css

202 ms

app.css

325 ms

upb.css

304 ms

Our browser made a total of 57 requests to load all elements on the main page. We found that 95% of them (54 requests) were addressed to the original Zsb.uni-paderborn.de, 4% (2 requests) were made to Piwik.uni-paderborn.de and 2% (1 request) were made to Chat.uni-paderborn.de. The less responsive or slowest element that took the longest time to load (726 ms) belongs to the original domain Zsb.uni-paderborn.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 510.2 kB (51%)

Content Size

996.5 kB

After Optimization

486.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zsb.uni-paderborn.de main page is 996.5 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. 40% of websites need less resources to load. Images take 382.6 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 56.4 kB

  • Original 65.9 kB
  • After minification 50.6 kB
  • After compression 9.5 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. This page needs HTML code to be minified as it can gain 15.3 kB, which is 23% 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 56.4 kB or 86% of the original size.

Image Optimization

-6%

Potential reduce by 23.2 kB

  • Original 382.6 kB
  • After minification 359.4 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. ZSB Uni Paderborn images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 197.4 kB

  • Original 282.4 kB
  • After minification 272.7 kB
  • After compression 85.0 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 197.4 kB or 70% of the original size.

CSS Optimization

-88%

Potential reduce by 233.2 kB

  • Original 265.6 kB
  • After minification 208.3 kB
  • After compression 32.4 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. Zsb.uni-paderborn.de needs all CSS files to be minified and compressed as it can save up to 233.2 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 27 (51%)

Requests Now

53

After Optimization

26

  • Images
  • JavaScript
  • CSS

The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ZSB Uni Paderborn. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

zsb.uni-paderborn.de

zsb.uni-paderborn.de

472 ms

news-basic.css

news-basic.css

200 ms

normalize.css

normalize.css

202 ms

app.css

app.css

325 ms

upb.css

upb.css

304 ms

magnific-popup.css

magnific-popup.css

205 ms

upbperson.css

upbperson.css

208 ms

gallery.css

gallery.css

297 ms

modernizr.js

modernizr.js

299 ms

jquery.min.js

jquery.min.js

521 ms

javascript_9a38f34785.js

javascript_9a38f34785.js

308 ms

foundation.min.js

foundation.min.js

548 ms

jquery.hoverIntent.js

jquery.hoverIntent.js

300 ms

responsive-tables.js

responsive-tables.js

307 ms

slick.min.js

slick.min.js

420 ms

magnific.js

magnific.js

328 ms

app.js

app.js

400 ms

jquery.lazyload.min.js

jquery.lazyload.min.js

407 ms

gallery.js

gallery.js

469 ms

image.php

image.php

700 ms

ausrufezeichen-gross.png

ausrufezeichen-gross.png

104 ms

pfeil_unten_grau.png

pfeil_unten_grau.png

101 ms

lupe.png

lupe.png

103 ms

logo.png

logo.png

106 ms

linkpfeil_weiss.png

linkpfeil_weiss.png

106 ms

csm_ingrid_c4aef8d984.jpg

csm_ingrid_c4aef8d984.jpg

525 ms

infow20.png

infow20.png

199 ms

csm_aby-gets-digital_4c4643768e.jpg

csm_aby-gets-digital_4c4643768e.jpg

407 ms

csm_zenmem_ab3ec8cde5.jpg

csm_zenmem_ab3ec8cde5.jpg

311 ms

csm_hip-app_512834ce0a.jpg

csm_hip-app_512834ce0a.jpg

305 ms

csm_computer-Hand_6d8f5f4a13.jpg

csm_computer-Hand_6d8f5f4a13.jpg

214 ms

csm_kirschbleuten_mit_Rad_4154819476.jpg

csm_kirschbleuten_mit_Rad_4154819476.jpg

298 ms

csm_Studierende_mit_Monitor_9013e7dfe0.jpg

csm_Studierende_mit_Monitor_9013e7dfe0.jpg

314 ms

RTEmagicC_SiS.gif.gif

RTEmagicC_SiS.gif.gif

399 ms

zoomw20.png

zoomw20.png

407 ms

csm_Uhr_25d98760e8.jpg

csm_Uhr_25d98760e8.jpg

411 ms

csm_OPhase_auf_Campus_Zwei_Personen_1a7ff294bc.jpg

csm_OPhase_auf_Campus_Zwei_Personen_1a7ff294bc.jpg

521 ms

csm_ZSBStand_quadrat_33d7ce177f.jpg

csm_ZSBStand_quadrat_33d7ce177f.jpg

521 ms

bibliothek.png

bibliothek.png

522 ms

csm_andre-theater_14256c56e7.jpg

csm_andre-theater_14256c56e7.jpg

523 ms

Signika.woff

Signika.woff

510 ms

Signika-Bold.woff

Signika-Bold.woff

611 ms

mainmenu-linie.png

mainmenu-linie.png

527 ms

pfeil_breadcrumb.png

pfeil_breadcrumb.png

559 ms

linkpfeil.png

linkpfeil.png

570 ms

akkordeon.png

akkordeon.png

572 ms

video-icon.png

video-icon.png

578 ms

pageoptions.png

pageoptions.png

619 ms

icons-social.png

icons-social.png

658 ms

pfeil_breadcrumb_letzer.png

pfeil_breadcrumb_letzer.png

622 ms

bild_footer.png

bild_footer.png

726 ms

piwik.js

piwik.js

322 ms

openhand.cur

openhand.cur

201 ms

pfeil_links.png

pfeil_links.png

211 ms

pfeil_rechts.png

pfeil_rechts.png

230 ms

ajax-loader.gif

ajax-loader.gif

279 ms

piwik.php

piwik.php

140 ms

Accessibility Review

zsb.uni-paderborn.de accessibility score

92

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

zsb.uni-paderborn.de best practices score

75

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

SEO Factors

zsb.uni-paderborn.de SEO score

88

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

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zsb.uni-paderborn.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 Zsb.uni-paderborn.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

zsb.uni-paderborn.de

Open Graph description is not detected on the main page of ZSB Uni Paderborn. 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: