Tools & Wizards About Us
zu.de screenshot

Report Summary

  • 41

    Performance

    Renders faster than
    60% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 77% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

zu.de

Universität zwischen Wirtschaft, Kultur und Politik | Zeppelin Universität

Page Load Speed

5.9 sec in total

First Response

510 ms

Resources Loaded

2.9 sec

Page Rendered

2.5 sec

zu.de screenshot

About Website

Click here to check amazing Zu content for Germany. Otherwise, check out these important facts you probably never knew about zu.de

Offizieller Webauftritt der Zeppelin Universität mit Informationen zur Forschung, Lehre und des Wissenstransfers zwischen den Schnittstellen der Wirtschaft, Kultur und Politik.

Visit zu.de

Key Findings

We analyzed Zu.de page load time and found that the first response time was 510 ms and then it took 5.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

zu.de performance score

41

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

65/100

10%

LCP (Largest Contentful Paint)

Value7.8 s

3/100

25%

SI (Speed Index)

Value6.5 s

39/100

10%

TBT (Total Blocking Time)

Value810 ms

36/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value8.1 s

42/100

10%

Network Requests Diagram

zu.de

510 ms

zu.de

431 ms

www.zu.de

1126 ms

de.svg

158 ms

en.svg

413 ms

Our browser made a total of 17 requests to load all elements on the main page. We found that all of those requests were addressed to Zu.de and no external sources were called. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Zu.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 552.1 kB (84%)

Content Size

660.3 kB

After Optimization

108.3 kB

  • HTML
  • JavaScript

In fact, the total size of Zu.de main page is 660.3 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. 25% of websites need less resources to load. HTML takes 659.2 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 552.0 kB

  • Original 659.2 kB
  • After minification 657.0 kB
  • After compression 107.2 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 552.0 kB or 84% of the original size.

JavaScript Optimization

-1%

Potential reduce by 16 B

  • Original 1.1 kB
  • After minification 1.1 kB
  • After compression 1.1 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. This website has mostly compressed JavaScripts.

Requests Breakdown

We found no issues to fix!

Requests Now

5

After Optimization

5

  • Images
  • JavaScript

The browser has sent 5 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zu. According to our analytics all requests are already optimized.

Network Requests Diagram

zu.de

zu.de

510 ms

zu.de

zu.de

431 ms

www.zu.de

www.zu.de

1126 ms

de.svg

de.svg

158 ms

en.svg

en.svg

413 ms

92f8b68063b573d377b219b36b8eb99c.js

92f8b68063b573d377b219b36b8eb99c.js

589 ms

bodyScrollLock.min.js

bodyScrollLock.min.js

586 ms

logo-zu-claim.svg

logo-zu-claim.svg

674 ms

5dac8626-172e-4f72-98df-8667df989493.woff

5dac8626-172e-4f72-98df-8667df989493.woff

627 ms

54a7f9d3-6607-4c69-818e-c24ea246d4b9.woff

54a7f9d3-6607-4c69-818e-c24ea246d4b9.woff

630 ms

9a027f61-197c-4e13-8416-d5f269fd7ef6.woff

9a027f61-197c-4e13-8416-d5f269fd7ef6.woff

626 ms

d3a1797e-1fde-479e-8cb5-bca588255598.woff

d3a1797e-1fde-479e-8cb5-bca588255598.woff

627 ms

159131c2-3e67-486d-849f-8fae4ed37681.woff

159131c2-3e67-486d-849f-8fae4ed37681.woff

619 ms

34f2fbd7-fa61-4fa8-8235-67bbbe225483.woff

34f2fbd7-fa61-4fa8-8235-67bbbe225483.woff

709 ms

index.html

index.html

450 ms

index.html

index.html

448 ms

index.html

index.html

446 ms

Accessibility Review

zu.de accessibility score

91

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

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

zu.de best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

zu.de SEO score

98

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

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 Zu.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 Zu.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

zu.de

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