Tools & Wizards About Us
wissen.de screenshot

Report Summary

  • 20

    Performance

    Renders faster than
    37% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

wissen.de

Allgemeinbildung | Wissenstest | Lexikon | Wörterbücher | Suche | wissen.de

Page Load Speed

1.9 sec in total

First Response

34 ms

Resources Loaded

1.8 sec

Page Rendered

72 ms

wissen.de screenshot

About Website

Visit wissen.de now to see the best up-to-date Wissen content for Germany and also check out these interesting facts you probably never knew about wissen.de

wissen.de ist das Wissensportal im deutschsprachigen Raum. Auf wissen.de finden Sie geprüfte Informationen. Kurz, knapp und präzise.

Visit wissen.de

Key Findings

We analyzed Wissen.de page load time and found that the first response time was 34 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

wissen.de performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

33/100

10%

LCP (Largest Contentful Paint)

Value9.1 s

1/100

25%

SI (Speed Index)

Value10.0 s

9/100

10%

TBT (Total Blocking Time)

Value4,270 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.033

100/100

15%

TTI (Time to Interactive)

Value21.0 s

1/100

10%

Network Requests Diagram

www.wissen.de

34 ms

gtm.js

108 ms

wissen_24411.js

147 ms

css_sgq7we9UTx-_j1XCoy7KxndjMr2AfCWcivWV7gvGX4o.css

21 ms

css_0cdcoVrMRC1TpdyQzv-QSRlIPNOz8UTXOyUvyOb7JIs.css

26 ms

Our browser made a total of 81 requests to load all elements on the main page. We found that 69% of them (56 requests) were addressed to the original Wissen.de, 15% (12 requests) were made to Cdn.privacy-mgmt.com and 2% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (686 ms) relates to the external source Statistik.konradin.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 617.0 kB (41%)

Content Size

1.5 MB

After Optimization

870.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Wissen.de main page is 1.5 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. 70% of websites need less resources to load. Javascripts take 800.3 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 313.1 kB

  • Original 383.4 kB
  • After minification 352.5 kB
  • After compression 70.3 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 313.1 kB or 82% of the original size.

Image Optimization

-6%

Potential reduce by 11.0 kB

  • Original 186.1 kB
  • After minification 175.1 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. Wissen images are well optimized though.

JavaScript Optimization

-25%

Potential reduce by 203.7 kB

  • Original 800.3 kB
  • After minification 800.3 kB
  • After compression 596.7 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 203.7 kB or 25% of the original size.

CSS Optimization

-76%

Potential reduce by 89.3 kB

  • Original 117.2 kB
  • After minification 116.9 kB
  • After compression 28.0 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. Wissen.de needs all CSS files to be minified and compressed as it can save up to 89.3 kB or 76% of the original size.

Requests Breakdown

Number of requests can be reduced by 15 (19%)

Requests Now

79

After Optimization

64

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 79 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Wissen. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.wissen.de

www.wissen.de

34 ms

gtm.js

gtm.js

108 ms

wissen_24411.js

wissen_24411.js

147 ms

css_sgq7we9UTx-_j1XCoy7KxndjMr2AfCWcivWV7gvGX4o.css

css_sgq7we9UTx-_j1XCoy7KxndjMr2AfCWcivWV7gvGX4o.css

21 ms

css_0cdcoVrMRC1TpdyQzv-QSRlIPNOz8UTXOyUvyOb7JIs.css

css_0cdcoVrMRC1TpdyQzv-QSRlIPNOz8UTXOyUvyOb7JIs.css

26 ms

wrapperMessagingWithoutDetection.js

wrapperMessagingWithoutDetection.js

40 ms

loader.js

loader.js

623 ms

adasync.min.js

adasync.min.js

220 ms

adsbygoogle.js

adsbygoogle.js

140 ms

adasync.min.js

adasync.min.js

327 ms

js_2N68gChcWtS-3JlDzw9XG5wvRgZLHzuu2LzcLP7YmGw.js

js_2N68gChcWtS-3JlDzw9XG5wvRgZLHzuu2LzcLP7YmGw.js

29 ms

get_site_data

get_site_data

39 ms

iqadcontroller.js.gz

iqadcontroller.js.gz

582 ms

latest-version

latest-version

124 ms

latest-version

latest-version

100 ms

new-user

new-user

12 ms

new-user

new-user

210 ms

pv-data

pv-data

311 ms

bundle.js

bundle.js

225 ms

matomo.js

matomo.js

686 ms

logo.svg

logo.svg

20 ms

806104_imperial_outdoorradi.jpg

806104_imperial_outdoorradi.jpg

667 ms

eu_beitragsbild_0.jpg

eu_beitragsbild_0.jpg

32 ms

HR_Schuelerlabor1_40F83092-5667-4EC1-A0E8-DFBE0119E924.jpg.webp

HR_Schuelerlabor1_40F83092-5667-4EC1-A0E8-DFBE0119E924.jpg.webp

142 ms

vogelgrippe_beitragsbild.jpg.webp

vogelgrippe_beitragsbild.jpg.webp

32 ms

01_HR_Suprasolides_Quantengas_Uni_Innsbruck_B36C9649-9955-4FA2-B6C3-B5AFD194EF05-e1713339004366.jpg.webp

01_HR_Suprasolides_Quantengas_Uni_Innsbruck_B36C9649-9955-4FA2-B6C3-B5AFD194EF05-e1713339004366.jpg.webp

276 ms

radar_beitragsbild.jpg.webp

radar_beitragsbild.jpg.webp

143 ms

quiz_orcas_beitragsbild.jpg.webp

quiz_orcas_beitragsbild.jpg.webp

37 ms

mehrgenerationehaus_beitragsbild.jpg.webp

mehrgenerationehaus_beitragsbild.jpg.webp

32 ms

01_HR_Glaszelle_fuer_Quantengas-Experimente_6D8AEAA7-B850-4B81-A964-BE57C69803C4-e1712569791858.jpg.webp

01_HR_Glaszelle_fuer_Quantengas-Experimente_6D8AEAA7-B850-4B81-A964-BE57C69803C4-e1712569791858.jpg.webp

36 ms

kupfer_beitragsbild.jpg.webp

kupfer_beitragsbild.jpg.webp

38 ms

populismus_beitragsbild.jpg.webp

populismus_beitragsbild.jpg.webp

38 ms

abenteuer_schwerelosigkeit_galileo.jpg.webp

abenteuer_schwerelosigkeit_galileo.jpg.webp

40 ms

infospreader_beitragsbild.jpg.webp

infospreader_beitragsbild.jpg.webp

320 ms

quiz_disneyfilme_cinderella_castle.jpg.webp

quiz_disneyfilme_cinderella_castle.jpg.webp

351 ms

kant_grabmal.jpg.webp

kant_grabmal.jpg.webp

273 ms

irondome_beitragsbild.jpeg.webp

irondome_beitragsbild.jpeg.webp

141 ms

Phaenomenal_NEU_3AC2523C-7B6A-4DB4-B514-8132B980A867.jpg.webp

Phaenomenal_NEU_3AC2523C-7B6A-4DB4-B514-8132B980A867.jpg.webp

220 ms

ki_arzneimittelforschung_beitragsbild.jpg.webp

ki_arzneimittelforschung_beitragsbild.jpg.webp

142 ms

Rover-1_Rover_00321_764AD7CC-336F-4B12-998E-E9D8EBB07DF7-e1712566998263.jpg.webp

Rover-1_Rover_00321_764AD7CC-336F-4B12-998E-E9D8EBB07DF7-e1712566998263.jpg.webp

143 ms

sexualkundeunterricht_beitragsbild.jpg.webp

sexualkundeunterricht_beitragsbild.jpg.webp

392 ms

tiny_houses_beitragsbild.jpg.webp

tiny_houses_beitragsbild.jpg.webp

311 ms

05_ScreenHouse_Tomate_03_AE574452-DD8D-4670-9153-FEFAE4F7ED4B-e1712653680584.jpg.webp

05_ScreenHouse_Tomate_03_AE574452-DD8D-4670-9153-FEFAE4F7ED4B-e1712653680584.jpg.webp

271 ms

maenner_als_standardpatient_beitragsbild.jpg.webp

maenner_als_standardpatient_beitragsbild.jpg.webp

679 ms

1147088-bearb.jpg.webp

1147088-bearb.jpg.webp

273 ms

1529988-bearb2.jpg.webp

1529988-bearb2.jpg.webp

274 ms

pi1_npo.jpg.webp

pi1_npo.jpg.webp

274 ms

osterreisen_schwarzwald.jpg.webp

osterreisen_schwarzwald.jpg.webp

276 ms

sonnenfinsternis_april_2024_beitragsbild.jpg.webp

sonnenfinsternis_april_2024_beitragsbild.jpg.webp

277 ms

vorsaetze_planen.jpg.webp

vorsaetze_planen.jpg.webp

277 ms

KIMedizin_beitragsbild.jpg.webp

KIMedizin_beitragsbild.jpg.webp

309 ms

spritemap.svg

spritemap.svg

297 ms

mehrgenerationehaus_beitragsbild.jpg.webp

mehrgenerationehaus_beitragsbild.jpg.webp

274 ms

01_HR_Glaszelle_fuer_Quantengas-Experimente_6D8AEAA7-B850-4B81-A964-BE57C69803C4-e1712569791858.jpg.webp

01_HR_Glaszelle_fuer_Quantengas-Experimente_6D8AEAA7-B850-4B81-A964-BE57C69803C4-e1712569791858.jpg.webp

262 ms

kupfer_beitragsbild.jpg.webp

kupfer_beitragsbild.jpg.webp

178 ms

populismus_beitragsbild.jpg.webp

populismus_beitragsbild.jpg.webp

177 ms

show_ads_impl.js

show_ads_impl.js

265 ms

pv-data

pv-data

199 ms

abenteuer_schwerelosigkeit_galileo.jpg.webp

abenteuer_schwerelosigkeit_galileo.jpg.webp

40 ms

wmvunin.ttf

wmvunin.ttf

43 ms

infospreader_beitragsbild.jpg.webp

infospreader_beitragsbild.jpg.webp

331 ms

kant_grabmal.jpg.webp

kant_grabmal.jpg.webp

66 ms

irondome_beitragsbild.jpeg.webp

irondome_beitragsbild.jpeg.webp

66 ms

Phaenomenal_NEU_3AC2523C-7B6A-4DB4-B514-8132B980A867.jpg.webp

Phaenomenal_NEU_3AC2523C-7B6A-4DB4-B514-8132B980A867.jpg.webp

69 ms

ki_arzneimittelforschung_beitragsbild.jpg.webp

ki_arzneimittelforschung_beitragsbild.jpg.webp

66 ms

Rover-1_Rover_00321_764AD7CC-336F-4B12-998E-E9D8EBB07DF7-e1712566998263.jpg.webp

Rover-1_Rover_00321_764AD7CC-336F-4B12-998E-E9D8EBB07DF7-e1712566998263.jpg.webp

67 ms

tiny_houses_beitragsbild.jpg.webp

tiny_houses_beitragsbild.jpg.webp

154 ms

05_ScreenHouse_Tomate_03_AE574452-DD8D-4670-9153-FEFAE4F7ED4B-e1712653680584.jpg.webp

05_ScreenHouse_Tomate_03_AE574452-DD8D-4670-9153-FEFAE4F7ED4B-e1712653680584.jpg.webp

69 ms

1147088-bearb.jpg.webp

1147088-bearb.jpg.webp

70 ms

1529988-bearb2.jpg.webp

1529988-bearb2.jpg.webp

70 ms

pi1_npo.jpg.webp

pi1_npo.jpg.webp

69 ms

osterreisen_schwarzwald.jpg.webp

osterreisen_schwarzwald.jpg.webp

71 ms

sonnenfinsternis_april_2024_beitragsbild.jpg.webp

sonnenfinsternis_april_2024_beitragsbild.jpg.webp

72 ms

vorsaetze_planen.jpg.webp

vorsaetze_planen.jpg.webp

87 ms

KIMedizin_beitragsbild.jpg.webp

KIMedizin_beitragsbild.jpg.webp

87 ms

index.html

index.html

69 ms

js

js

69 ms

polyfills.b0798.js

polyfills.b0798.js

12 ms

Notice.0575a.js

Notice.0575a.js

122 ms

Notice.c6498.css

Notice.c6498.css

120 ms

matomo.php

matomo.php

174 ms

Accessibility Review

wissen.de accessibility score

88

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

wissen.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

wissen.de SEO score

86

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

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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 Wissen.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 Wissen.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

wissen.de

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