Tools & Wizards About Us
usability.de screenshot

Report Summary

  • 59

    Performance

    Renders faster than
    74% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

usability.de

Agentur für Usability und User Experience (UX): Usability-Test, UX-Design, Benutzerfreundlichkeit – usability.de

Page Load Speed

2.8 sec in total

First Response

309 ms

Resources Loaded

2.1 sec

Page Rendered

308 ms

usability.de screenshot

About Website

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

usability.de ist als UX-Agentur spezialisiert auf Usability Beratung und die Optimierung von interaktiven Anwendungen, Usability-Tests, UX-Design und darauf UX ins Unternehmen zu bringen: UX-Managemen...

Visit usability.de

Key Findings

We analyzed Usability.de page load time and found that the first response time was 309 ms and then it took 2.5 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

usability.de performance score

59

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

61/100

10%

LCP (Largest Contentful Paint)

Value6.8 s

7/100

25%

SI (Speed Index)

Value5.1 s

62/100

10%

TBT (Total Blocking Time)

Value140 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0.147

77/100

15%

TTI (Time to Interactive)

Value7.2 s

51/100

10%

Network Requests Diagram

usability.de

309 ms

www.usability.de

315 ms

www.usability.de

470 ms

owl.carousel.min.css

102 ms

owl.theme.default.min.css

204 ms

Our browser made a total of 43 requests to load all elements on the main page. We found that 86% of them (37 requests) were addressed to the original Usability.de, 5% (2 requests) were made to Google-analytics.com and 5% (2 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (592 ms) belongs to the original domain Usability.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 83.3 kB (15%)

Content Size

542.1 kB

After Optimization

458.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Usability.de main page is 542.1 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. Images take 384.0 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 32.5 kB

  • Original 40.2 kB
  • After minification 31.9 kB
  • After compression 7.7 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. This page needs HTML code to be minified as it can gain 8.3 kB, which is 21% 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 32.5 kB or 81% of the original size.

Image Optimization

-8%

Potential reduce by 29.5 kB

  • Original 384.0 kB
  • After minification 354.5 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. Usability images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 91 B

  • Original 94.5 kB
  • After minification 94.5 kB
  • After compression 94.4 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

-90%

Potential reduce by 21.1 kB

  • Original 23.4 kB
  • After minification 3.1 kB
  • After compression 2.3 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. Usability.de needs all CSS files to be minified and compressed as it can save up to 21.1 kB or 90% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (26%)

Requests Now

39

After Optimization

29

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Usability. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

usability.de

usability.de

309 ms

www.usability.de

www.usability.de

315 ms

www.usability.de

www.usability.de

470 ms

owl.carousel.min.css

owl.carousel.min.css

102 ms

owl.theme.default.min.css

owl.theme.default.min.css

204 ms

flexslider.css

flexslider.css

296 ms

main.css

main.css

394 ms

retina.min.js

retina.min.js

304 ms

jquery-3.6.0.min.js

jquery-3.6.0.min.js

459 ms

respond.min.js

respond.min.js

321 ms

plugins.js

plugins.js

458 ms

main.js

main.js

445 ms

gtm.js

gtm.js

116 ms

analytics.js

analytics.js

85 ms

usability_logo.svg

usability_logo.svg

111 ms

m-icon-menu.png

m-icon-menu.png

112 ms

l-einstieg-ux-testing.jpg

l-einstieg-ux-testing.jpg

253 ms

l-einstieg-ux-design.jpg

l-einstieg-ux-design.jpg

221 ms

l-einstieg-ux-trainings.jpg

l-einstieg-ux-trainings.jpg

260 ms

schatten-oben.png

schatten-oben.png

170 ms

startseite-fs-siemens.png

startseite-fs-siemens.png

309 ms

startseite-fs-claas.png

startseite-fs-claas.png

317 ms

startseite-fs-dkh.png

startseite-fs-dkh.png

267 ms

sprite-bullet-points.png

sprite-bullet-points.png

316 ms

ux-management-buch-weichert-bartel-quint-mockup.png

ux-management-buch-weichert-bartel-quint-mockup.png

461 ms

concordia.png

concordia.png

368 ms

dpd.png

dpd.png

375 ms

adidas.png

adidas.png

419 ms

sw_adidas.png

sw_adidas.png

420 ms

sw_datev.png

sw_datev.png

429 ms

sw_nabu.png

sw_nabu.png

477 ms

sw_siemens-healthineers.png

sw_siemens-healthineers.png

483 ms

sw_thalia.png

sw_thalia.png

523 ms

sw_ulrich-medical.png

sw_ulrich-medical.png

524 ms

sprite-contact.png

sprite-contact.png

529 ms

logo_upa.png

logo_upa.png

565 ms

logo_uxqb.png

logo_uxqb.png

590 ms

logo_wud.png

logo_wud.png

592 ms

widgets.js

widgets.js

81 ms

collect

collect

23 ms

usability.woff

usability.woff

518 ms

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

51 ms

settings

settings

94 ms

Accessibility Review

usability.de accessibility score

83

Accessibility Issues

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

Buttons do not have an accessible name

High

Form elements do not have associated labels

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

usability.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

SEO Factors

usability.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 Usability.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 Usability.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

usability.de

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