Report Summary

  • 48

    Performance

    Renders faster than
    67% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 60% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

duz.de

DUZ - Magazin - Wissenschaft & Management

Page Load Speed

4.7 sec in total

First Response

188 ms

Resources Loaded

3.4 sec

Page Rendered

1.1 sec

duz.de screenshot

About Website

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

Trends in Hochschule und Forschung, Fokus Wissenschaftsmanagement, Hintergründe aus Politik, Gesellschaft, Wirtschaft: Das sind die Themen der DUZ.

Visit duz.de

Key Findings

We analyzed Duz.de page load time and found that the first response time was 188 ms and then it took 4.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

duz.de performance score

48

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

11/100

10%

LCP (Largest Contentful Paint)

Value7.2 s

5/100

25%

SI (Speed Index)

Value5.6 s

52/100

10%

TBT (Total Blocking Time)

Value390 ms

69/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value7.8 s

44/100

10%

Network Requests Diagram

duz.de

188 ms

duz.de

416 ms

www.duz.de

581 ms

gtm.js

58 ms

js

100 ms

Our browser made a total of 111 requests to load all elements on the main page. We found that 92% of them (102 requests) were addressed to the original Duz.de, 3% (3 requests) were made to Googletagmanager.com and 3% (3 requests) were made to Use.typekit.net. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Duz.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 134.6 kB (3%)

Content Size

4.8 MB

After Optimization

4.7 MB

In fact, the total size of Duz.de main page is 4.8 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. 65% of websites need less resources to load. Images take 4.5 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 64.5 kB

  • Original 78.8 kB
  • After minification 65.0 kB
  • After compression 14.3 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 13.8 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 64.5 kB or 82% of the original size.

Image Optimization

-1%

Potential reduce by 63.6 kB

  • Original 4.5 MB
  • After minification 4.5 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. DUZ images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 5.2 kB

  • Original 182.1 kB
  • After minification 182.1 kB
  • After compression 177.0 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. This website has mostly compressed JavaScripts.

CSS Optimization

-4%

Potential reduce by 1.3 kB

  • Original 35.4 kB
  • After minification 35.4 kB
  • After compression 34.1 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. Duz.de has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 34 (32%)

Requests Now

106

After Optimization

72

The browser has sent 106 CSS, Javascripts, AJAX and image requests in order to completely render the main page of DUZ. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 29 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

duz.de accessibility score

85

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

duz.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

High

Page has valid source maps

SEO Factors

duz.de SEO score

83

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

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 Duz.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 Duz.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 description is not detected on the main page of DUZ. 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: