Tools & Wizards About Us
stern-test.de screenshot

Report Summary

  • 31

    Performance

    Renders faster than
    51% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

stern-test.de

Corona-Testzentrum Bonn| Kostenloser COVID-19 Schnelltest | Sterntest

Page Load Speed

2.1 sec in total

First Response

545 ms

Resources Loaded

1.4 sec

Page Rendered

96 ms

stern-test.de screenshot

About Website

Visit stern-test.de now to see the best up-to-date Sterntest content and also check out these interesting facts you probably never knew about stern-test.de

Kostenloser Covid 19 Schnelltest in Bonn - Corona-Antigen-Test | Jetzt Termin buchen | Schnelles Ergebnis | Der Test dauert nur 5 Minuten! Stern-Test ist seit Beginn der Pandemie ein Zuverlässiger Par...

Visit stern-test.de

Key Findings

We analyzed Stern-test.de page load time and found that the first response time was 545 ms and then it took 1.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

stern-test.de performance score

31

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

42/100

10%

LCP (Largest Contentful Paint)

Value5.5 s

19/100

25%

SI (Speed Index)

Value8.0 s

22/100

10%

TBT (Total Blocking Time)

Value1,790 ms

10/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value12.6 s

14/100

10%

Network Requests Diagram

www.stern-test.de

545 ms

minified.js

104 ms

focus-within-polyfill.js

192 ms

polyfill.min.js

193 ms

bootstrap-features.d21499e7.bundle.min.js

211 ms

Our browser made a total of 32 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Stern-test.de, 59% (19 requests) were made to Static.parastorage.com and 31% (10 requests) were made to Static.wixstatic.com. The less responsive or slowest element that took the longest time to load (601 ms) relates to the external source Static.wixstatic.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 210.0 kB (57%)

Content Size

371.5 kB

After Optimization

161.5 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Stern-test.de main page is 371.5 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. 45% of websites need less resources to load. HTML takes 280.7 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 206.9 kB

  • Original 280.7 kB
  • After minification 279.1 kB
  • After compression 73.9 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. 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 206.9 kB or 74% of the original size.

Image Optimization

-7%

Potential reduce by 3.1 kB

  • Original 47.0 kB
  • After minification 43.9 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. Sterntest images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 48 B

  • Original 43.7 kB
  • After minification 43.7 kB
  • After compression 43.7 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

Number of requests can be reduced by 9 (38%)

Requests Now

24

After Optimization

15

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 24 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sterntest. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.stern-test.de

www.stern-test.de

545 ms

minified.js

minified.js

104 ms

focus-within-polyfill.js

focus-within-polyfill.js

192 ms

polyfill.min.js

polyfill.min.js

193 ms

bootstrap-features.d21499e7.bundle.min.js

bootstrap-features.d21499e7.bundle.min.js

211 ms

main.c5638ec5.bundle.min.js

main.c5638ec5.bundle.min.js

208 ms

lodash.min.js

lodash.min.js

207 ms

react.production.min.js

react.production.min.js

182 ms

siteTags.bundle.min.js

siteTags.bundle.min.js

207 ms

wix-perf-measure.bundle.min.js

wix-perf-measure.bundle.min.js

156 ms

react-dom.production.min.js

react-dom.production.min.js

157 ms

Sterntest_Logo.png

Sterntest_Logo.png

290 ms

schnell.png

schnell.png

323 ms

online.png

online.png

333 ms

kalender.png

kalender.png

328 ms

warten.png

warten.png

329 ms

schnelles%20ergebniss.png

schnelles%20ergebniss.png

344 ms

pdf.png

pdf.png

373 ms

Image%20by%20Maddi%20Bazzocco.jpg

Image%20by%20Maddi%20Bazzocco.jpg

563 ms

Image%20by%20Sharon%20McCutcheon.jpg

Image%20by%20Sharon%20McCutcheon.jpg

601 ms

Image%20by%20Medakit%20Ltd.jpg

Image%20by%20Medakit%20Ltd.jpg

430 ms

4021a3b9-f782-438b-aeb4-c008109a8b64.woff

4021a3b9-f782-438b-aeb4-c008109a8b64.woff

45 ms

b56b944e-bbe0-4450-a241-de2125d3e682.woff

b56b944e-bbe0-4450-a241-de2125d3e682.woff

45 ms

6f8d1983-4d34-4fa4-9110-988f6c495757.woff

6f8d1983-4d34-4fa4-9110-988f6c495757.woff

44 ms

c5749443-93da-4592-b794-42f28d62ef72.woff

c5749443-93da-4592-b794-42f28d62ef72.woff

66 ms

192dac76-a6d9-413d-bb74-22308f2e0cc5.woff

192dac76-a6d9-413d-bb74-22308f2e0cc5.woff

45 ms

0a3939d0-3833-4db3-8b85-f64c2b3350d2.woff

0a3939d0-3833-4db3-8b85-f64c2b3350d2.woff

34 ms

61bd362e-7162-46bd-b67e-28f366c4afbe.woff

61bd362e-7162-46bd-b67e-28f366c4afbe.woff

44 ms

deprecation-en.v5.html

deprecation-en.v5.html

5 ms

bolt-performance

bolt-performance

26 ms

deprecation-style.v5.css

deprecation-style.v5.css

9 ms

right-arrow.svg

right-arrow.svg

7 ms

Accessibility Review

stern-test.de accessibility score

96

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

Links do not have a discernible name

Best Practices

stern-test.de best practices score

92

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

Page has valid source maps

SEO Factors

stern-test.de SEO score

99

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 Stern-test.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 Stern-test.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

stern-test.de

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