Report Summary

  • 49

    Performance

    Renders faster than
    67% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 72% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

warentest.de

Stiftung Warentest | Unabhängig. Objektiv. Unbestechlich.

Page Load Speed

27.9 sec in total

First Response

835 ms

Resources Loaded

2.9 sec

Page Rendered

24.2 sec

warentest.de screenshot

About Website

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

Stiftung Warentest: Testberichte zu Elektronik, Haushalt und Gesundheit sowie Finanzen, Versicherung und Steuern

Visit warentest.de

Key Findings

We analyzed Warentest.de page load time and found that the first response time was 835 ms and then it took 27.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

warentest.de performance score

49

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

47/100

10%

LCP (Largest Contentful Paint)

Value6.7 s

7/100

25%

SI (Speed Index)

Value3.9 s

82/100

10%

TBT (Total Blocking Time)

Value610 ms

49/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value7.6 s

47/100

10%

Network Requests Diagram

www.test.de

835 ms

main.min;v105702675.css

171 ms

gtm.js

294 ms

test-de-print-logo;v105702676.svg

113 ms

6084971_matratzen-t2402.jpg

717 ms

Our browser made a total of 64 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Warentest.de, 3% (2 requests) were made to Test.de and 2% (1 request) were made to Experience-eu.piano.io. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source Cdn.test.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 916.6 kB (6%)

Content Size

15.9 MB

After Optimization

15.0 MB

In fact, the total size of Warentest.de main page is 15.9 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. 60% of websites need less resources to load. Images take 14.7 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 447.9 kB

  • Original 524.6 kB
  • After minification 490.5 kB
  • After compression 76.7 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 447.9 kB or 85% of the original size.

Image Optimization

-0%

Potential reduce by 20.7 kB

  • Original 14.7 MB
  • After minification 14.7 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. Warentest images are well optimized though.

JavaScript Optimization

-6%

Potential reduce by 11.6 kB

  • Original 191.2 kB
  • After minification 191.2 kB
  • After compression 179.6 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

-85%

Potential reduce by 436.4 kB

  • Original 515.4 kB
  • After minification 514.0 kB
  • After compression 79.0 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. Warentest.de needs all CSS files to be minified and compressed as it can save up to 436.4 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (6%)

Requests Now

63

After Optimization

59

The browser has sent 63 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Warentest. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

warentest.de accessibility score

89

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

High

Heading elements are not in a sequentially-descending order

High

Some elements have a [tabindex] value greater than 0

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 IDs are not unique

Best Practices

warentest.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

High

Page has valid source maps

SEO Factors

warentest.de SEO score

100

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

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 Warentest.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 Warentest.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 Warentest. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: