Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 87% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 88

    SEO

    Google-friendlier than
    66% of websites

upb.de

Universität Paderborn

Page Load Speed

3 sec in total

First Response

300 ms

Resources Loaded

2.3 sec

Page Rendered

390 ms

upb.de screenshot

About Website

Welcome to upb.de homepage info - get ready to check Upb best content for Germany right away, or after learning these important things about upb.de

Die Universität Paderborn zählt mit rund 20 000 Studierenden zu den leistungsstarken mittelgroßen Universitäten in Deutschland.

Visit upb.de

Key Findings

We analyzed Upb.de page load time and found that the first response time was 300 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

upb.de performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

40/100

10%

LCP (Largest Contentful Paint)

Value6.4 s

9/100

25%

SI (Speed Index)

Value6.0 s

46/100

10%

TBT (Total Blocking Time)

Value630 ms

48/100

30%

CLS (Cumulative Layout Shift)

Value0.083

93/100

15%

TTI (Time to Interactive)

Value7.3 s

49/100

10%

Network Requests Diagram

upb.de

300 ms

www.uni-paderborn.de

567 ms

news-basic.css

202 ms

normalize.css

202 ms

app.css

407 ms

Our browser made a total of 61 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Upb.de, 95% (58 requests) were made to Uni-paderborn.de and 3% (2 requests) were made to Piwik.uni-paderborn.de. The less responsive or slowest element that took the longest time to load (838 ms) relates to the external source Uni-paderborn.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 548.2 kB (41%)

Content Size

1.3 MB

After Optimization

780.4 kB

In fact, the total size of Upb.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. 45% of websites need less resources to load. Images take 674.6 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 93.0 kB

  • Original 105.9 kB
  • After minification 86.4 kB
  • After compression 12.9 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. This page needs HTML code to be minified as it can gain 19.5 kB, which is 18% 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 93.0 kB or 88% of the original size.

Image Optimization

-4%

Potential reduce by 24.6 kB

  • Original 674.6 kB
  • After minification 650.0 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. Upb 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. Upb.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 25 (45%)

Requests Now

56

After Optimization

31

The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Upb. 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.

Accessibility Review

upb.de accessibility score

95

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-hidden="true"] elements contain focusable descendents

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

Best Practices

upb.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

upb.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 Upb.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 Upb.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

Open Graph data is detected on the main page of Upb. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: