Tools & Wizards About Us
derdenker.de screenshot

Report Summary

  • 68

    Performance

    Renders faster than
    80% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 96

    SEO

    Google-friendlier than
    90% of websites

derdenker.de

Jens der Denker: Trainieren Sie Ihr Arbeitsgedächtnis: Jens der Denker

Page Load Speed

3.6 sec in total

First Response

222 ms

Resources Loaded

2.1 sec

Page Rendered

1.3 sec

derdenker.de screenshot

About Website

Click here to check amazing Der Denker content. Otherwise, check out these important facts you probably never knew about derdenker.de

Arbeitsgedächtnis trainieren, indem Sie ein Seminar von Jens Seiler belegen: Gedächtnistraining, Schneller lesen, Speed Reading, Lernen lernen. Namenmerken.

Visit derdenker.de

Key Findings

We analyzed Derdenker.de page load time and found that the first response time was 222 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

derdenker.de performance score

68

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

67/100

10%

LCP (Largest Contentful Paint)

Value6.8 s

7/100

25%

SI (Speed Index)

Value3.9 s

83/100

10%

TBT (Total Blocking Time)

Value80 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value6.3 s

61/100

10%

Network Requests Diagram

derdenker.de

222 ms

www.jens-der-denker.de

548 ms

merged-9283c9107cf61fad597aea239f581591-min.css

196 ms

merged-50a4044ffdb77357aee66d9a4ed05458-min.js

582 ms

gtm.js

85 ms

Our browser made a total of 24 requests to load all elements on the main page. We found that 4% of them (1 request) were addressed to the original Derdenker.de, 83% (20 requests) were made to Jens-der-denker.de and 8% (2 requests) were made to Tracking.jens-der-denker.de. The less responsive or slowest element that took the longest time to load (675 ms) relates to the external source Jens-der-denker.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 19.7 kB (3%)

Content Size

756.7 kB

After Optimization

737.0 kB

  • HTML
  • Images

In fact, the total size of Derdenker.de main page is 756.7 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. 40% of websites need less resources to load. Images take 729.6 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 19.7 kB

  • Original 27.1 kB
  • After minification 26.4 kB
  • After compression 7.4 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 19.7 kB or 73% of the original size.

Image Optimization

-0%

Potential reduce by 3 B

  • Original 729.6 kB
  • After minification 729.6 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. Der Denker images are well optimized though.

Requests Breakdown

We found no issues to fix!

Requests Now

19

After Optimization

19

  • Images
  • JavaScript
  • CSS

The browser has sent 19 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Der Denker. According to our analytics all requests are already optimized.

Network Requests Diagram

derdenker.de

derdenker.de

222 ms

www.jens-der-denker.de

www.jens-der-denker.de

548 ms

merged-9283c9107cf61fad597aea239f581591-min.css

merged-9283c9107cf61fad597aea239f581591-min.css

196 ms

merged-50a4044ffdb77357aee66d9a4ed05458-min.js

merged-50a4044ffdb77357aee66d9a4ed05458-min.js

582 ms

gtm.js

gtm.js

85 ms

matomo.js

matomo.js

525 ms

ext_logo.svg

ext_logo.svg

105 ms

seiler-quer-wand-44.jpg

seiler-quer-wand-44.jpg

388 ms

seiler-hoch-wand.jpg

seiler-hoch-wand.jpg

388 ms

seminarteilnehmer.jpg

seminarteilnehmer.jpg

389 ms

publikum.jpg

publikum.jpg

483 ms

seminarteilnehmer2.jpg

seminarteilnehmer2.jpg

403 ms

nervenzellen.jpg

nervenzellen.jpg

563 ms

bergemann.jpg

bergemann.jpg

467 ms

elch.jpg

elch.jpg

477 ms

baby-jens-links.jpg

baby-jens-links.jpg

580 ms

wettendass0003.jpg

wettendass0003.jpg

509 ms

wettendass0001.jpg

wettendass0001.jpg

565 ms

wettendass0004.jpg

wettendass0004.jpg

574 ms

gehirntrainer.jpg

gehirntrainer.jpg

583 ms

lato-v14-latin-regular.woff

lato-v14-latin-regular.woff

541 ms

merriweather-v19-latin-regular.woff

merriweather-v19-latin-regular.woff

589 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

675 ms

matomo.php

matomo.php

584 ms

Accessibility Review

derdenker.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

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

derdenker.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

derdenker.de SEO score

96

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 Derdenker.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 Derdenker.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

derdenker.de

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