Tools & Wizards About Us

Report Summary

  • 26

    Performance

    Renders faster than
    45% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

dasgehirn.info

Das Gehirn – der Kosmos im Kopf

Page Load Speed

4.3 sec in total

First Response

291 ms

Resources Loaded

3.1 sec

Page Rendered

880 ms

About Website

Visit dasgehirn.info now to see the best up-to-date Das Gehirn content for Switzerland and also check out these interesting facts you probably never knew about dasgehirn.info

Das Gehirn – umfassend, verständlich und anschaulich erklärt in Wort, Bild und Ton. Mit umfangreicher Mediathek, 3D-Gehirn und vielen informativen Beiträgen zum Thema.

Visit dasgehirn.info

Key Findings

We analyzed Dasgehirn.info page load time and found that the first response time was 291 ms and then it took 4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

dasgehirn.info performance score

26

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

55/100

10%

LCP (Largest Contentful Paint)

Value10.6 s

0/100

25%

SI (Speed Index)

Value8.2 s

20/100

10%

TBT (Total Blocking Time)

Value780 ms

38/100

30%

CLS (Cumulative Layout Shift)

Value0.369

29/100

15%

TTI (Time to Interactive)

Value9.6 s

29/100

10%

Network Requests Diagram

dasgehirn.info

291 ms

www.dasgehirn.info

545 ms

css_4S9kBNEyfATKruSo7hkz5c-EyPoqrl3De9BsvWxn7Wg.css

88 ms

css_0l3Q3GXMLueO18rBIQI_4HcokQsFSxJpf9gQZ2xpAh4.css

271 ms

js_kCkKkEKBKBGGhryW1Iigfs63XLUDCBiW1uau2gnpvqc.js

878 ms

Our browser made a total of 103 requests to load all elements on the main page. We found that 95% of them (98 requests) were addressed to the original Dasgehirn.info, 2% (2 requests) were made to Google-analytics.com and 1% (1 request) were made to Stats.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (967 ms) belongs to the original domain Dasgehirn.info.

Page Optimization Overview & Recommendations

Page size can be reduced by 375.6 kB (8%)

Content Size

4.8 MB

After Optimization

4.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dasgehirn.info 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 4.1 MB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 225.0 kB

  • Original 250.3 kB
  • After minification 154.3 kB
  • After compression 25.2 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 96.0 kB, which is 38% 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 225.0 kB or 90% of the original size.

Image Optimization

-4%

Potential reduce by 150.6 kB

  • Original 4.1 MB
  • After minification 3.9 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. Das Gehirn images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 50 B

  • Original 353.7 kB
  • After minification 353.7 kB
  • After compression 353.6 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

-0%

Potential reduce by 16 B

  • Original 59.0 kB
  • After minification 59.0 kB
  • After compression 59.0 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. Dasgehirn.info has all CSS files already compressed.

Requests Breakdown

We found no issues to fix!

Requests Now

94

After Optimization

94

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 94 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Das Gehirn. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

dasgehirn.info accessibility score

85

Accessibility Issues

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 input fields do not have accessible names

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>).

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

dasgehirn.info 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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

dasgehirn.info SEO score

90

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

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 Dasgehirn.info 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 Dasgehirn.info 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 Das Gehirn. 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: