Tools & Wizards About Us
wissenschaft.de screenshot

Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

wissenschaft.de

Bild der Wissenschaft - Aktuelle Nachrichten aus Wissenschaft und Forschung

Page Load Speed

3.3 sec in total

First Response

201 ms

Resources Loaded

3 sec

Page Rendered

95 ms

wissenschaft.de screenshot

About Website

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

wissenschaft.de - Aktuelle Nachrichten aus Wissenschaft und Forschung. Das Wissensportal von Bild der Wissenschaft mit News zu Astronomie, Physik, Medizin und mehr.

Visit wissenschaft.de

Key Findings

We analyzed Wissenschaft.de page load time and found that the first response time was 201 ms and then it took 3.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

wissenschaft.de performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

11/100

10%

LCP (Largest Contentful Paint)

Value12.1 s

0/100

25%

SI (Speed Index)

Value7.5 s

27/100

10%

TBT (Total Blocking Time)

Value1,280 ms

18/100

30%

CLS (Cumulative Layout Shift)

Value0.05

99/100

15%

TTI (Time to Interactive)

Value13.9 s

10/100

10%

Network Requests Diagram

wissenschaft.de

201 ms

www.wissenschaft.de

607 ms

wrapperMessagingWithoutDetection.js

18 ms

loader.js

604 ms

styles.css

187 ms

Our browser made a total of 116 requests to load all elements on the main page. We found that 76% of them (88 requests) were addressed to the original Wissenschaft.de, 9% (11 requests) were made to Cdn.privacy-mgmt.com and 4% (5 requests) were made to Scienceblogs.de. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Wissenschaft.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 455.4 kB (17%)

Content Size

2.7 MB

After Optimization

2.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Wissenschaft.de main page is 2.7 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 2.0 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 362.8 kB

  • Original 452.3 kB
  • After minification 439.8 kB
  • After compression 89.4 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 362.8 kB or 80% of the original size.

Image Optimization

-4%

Potential reduce by 84.9 kB

  • Original 2.0 MB
  • After minification 1.9 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. Wissenschaft images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 7.4 kB

  • Original 313.0 kB
  • After minification 313.0 kB
  • After compression 305.6 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

-3%

Potential reduce by 200 B

  • Original 6.3 kB
  • After minification 6.2 kB
  • After compression 6.1 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. Wissenschaft.de has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 17 (16%)

Requests Now

105

After Optimization

88

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 105 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Wissenschaft. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

wissenschaft.de

wissenschaft.de

201 ms

www.wissenschaft.de

www.wissenschaft.de

607 ms

wrapperMessagingWithoutDetection.js

wrapperMessagingWithoutDetection.js

18 ms

loader.js

loader.js

604 ms

styles.css

styles.css

187 ms

minify-b1-a-z-listing-block-e7ff02f0ef7c348ad1478b09e287db34.css

minify-b1-a-z-listing-block-e7ff02f0ef7c348ad1478b09e287db34.css

471 ms

minify-b1-mks_shortcodes_simple_line_icons-03655ecb4c41e20421bcba36099e3a8a.css

minify-b1-mks_shortcodes_simple_line_icons-03655ecb4c41e20421bcba36099e3a8a.css

284 ms

plenigo_sdk.min.js

plenigo_sdk.min.js

58 ms

minify-b1-aboplus-sweatalert-69f27fd5ac3d245c9f68b424fbd6014c.js

minify-b1-aboplus-sweatalert-69f27fd5ac3d245c9f68b424fbd6014c.js

473 ms

281214.css

281214.css

192 ms

minify-b1-bookmarks-cc34c7f1ca38e798afe61d13dae5d97d.css

minify-b1-bookmarks-cc34c7f1ca38e798afe61d13dae5d97d.css

192 ms

minify-b1-bookmarks-ad01c5915557a6325f461486d3a3ea0d.js

minify-b1-bookmarks-ad01c5915557a6325f461486d3a3ea0d.js

474 ms

bundle.js

bundle.js

230 ms

now.js

now.js

512 ms

get_site_data

get_site_data

65 ms

iqadcontroller.js.gz

iqadcontroller.js.gz

595 ms

close.png

close.png

107 ms

Suizide-Trend.png

Suizide-Trend.png

753 ms

latex.php

latex.php

50 ms

spotify-e1689083294222.png

spotify-e1689083294222.png

674 ms

loading.gif

loading.gif

108 ms

prev.png

prev.png

107 ms

next.png

next.png

107 ms

bdw_plus_logo_juli2023.png

bdw_plus_logo_juli2023.png

223 ms

lock.png

lock.png

107 ms

logo_wissenschaft_2022.gif

logo_wissenschaft_2022.gif

282 ms

logo_damals.png

logo_damals.png

221 ms

logo_natur.png

logo_natur.png

223 ms

ap_thumb.png

ap_thumb.png

287 ms

td_thumb.png

td_thumb.png

223 ms

gm_thumb.png

gm_thumb.png

380 ms

un_thumb.png

un_thumb.png

288 ms

ga_thumb.png

ga_thumb.png

288 ms

gp_thumb.png

gp_thumb.png

288 ms

bdw_plus_icon.png

bdw_plus_icon.png

375 ms

logo_wissenschaft.png

logo_wissenschaft.png

381 ms

Aufmacher-120704_MAINZ_06_4BACFD4A-B130-4F74-9695-11286E14CFE3-e1712564882466-1025x450.jpg

Aufmacher-120704_MAINZ_06_4BACFD4A-B130-4F74-9695-11286E14CFE3-e1712564882466-1025x450.jpg

475 ms

bdw_plus_icon_juli2023.png

bdw_plus_icon_juli2023.png

382 ms

iStock-1205787762-300x200.jpg

iStock-1205787762-300x200.jpg

383 ms

sciencebusters_NEU_DDEF7489-F052-4CCB-8E44-6A4534371E1C-300x200.jpg

sciencebusters_NEU_DDEF7489-F052-4CCB-8E44-6A4534371E1C-300x200.jpg

472 ms

24-05-03-candidaauris-300x200.jpg

24-05-03-candidaauris-300x200.jpg

474 ms

Low-Res_A37-Pressebild-682x450.jpg

Low-Res_A37-Pressebild-682x450.jpg

476 ms

240503_trueffel-300x200.jpg

240503_trueffel-300x200.jpg

478 ms

iStock-1457622587_HR_02_A5ED1273-5614-4316-83BE-548F353710E7-e1714629661875-300x200.jpg

iStock-1457622587_HR_02_A5ED1273-5614-4316-83BE-548F353710E7-e1714629661875-300x200.jpg

476 ms

Phaenomenal_NEU_3AC2523C-7B6A-4DB4-B514-8132B980A867-300x200.jpg

Phaenomenal_NEU_3AC2523C-7B6A-4DB4-B514-8132B980A867-300x200.jpg

590 ms

Space-Roboter-215x120.jpg

Space-Roboter-215x120.jpg

591 ms

Quantencomputer-215x120.jpg

Quantencomputer-215x120.jpg

590 ms

batterien-der-zukunft-215x120.jpg

batterien-der-zukunft-215x120.jpg

591 ms

Dolche-215x120.jpg

Dolche-215x120.jpg

592 ms

Fussball-215x120.jpg

Fussball-215x120.jpg

592 ms

Affen-215x120.jpg

Affen-215x120.jpg

673 ms

Roboter-2-215x120.jpg

Roboter-2-215x120.jpg

673 ms

vulkanismus-wie-die-landeskrone-215x120.jpg

vulkanismus-wie-die-landeskrone-215x120.jpg

674 ms

Sonne-1-215x120.jpg

Sonne-1-215x120.jpg

674 ms

Hortfund-215x120.jpg

Hortfund-215x120.jpg

674 ms

deezer.png

deezer.png

670 ms

amazon_music.png

amazon_music.png

671 ms

google_podcasts.png

google_podcasts.png

747 ms

apple-podcasts-logo.png

apple-podcasts-logo.png

525 ms

Lebenserwartung-65.png

Lebenserwartung-65.png

806 ms

courtsnotiert-150x150.jpg

courtsnotiert-150x150.jpg

526 ms

Sonntagsbegegnung-21.4.2024.jpg

Sonntagsbegegnung-21.4.2024.jpg

746 ms

DZPP.jpg

DZPP.jpg

746 ms

latest-version

latest-version

159 ms

open-sans-v13-latin_latin-ext-regular.woff

open-sans-v13-latin_latin-ext-regular.woff

573 ms

open-sans-v29-latin-ext-700.woff

open-sans-v29-latin-ext-700.woff

705 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

818 ms

fa-v4compatibility.ttf

fa-v4compatibility.ttf

704 ms

fa-regular-400.ttf

fa-regular-400.ttf

817 ms

latest-version

latest-version

118 ms

fa-brands-400.ttf

fa-brands-400.ttf

869 ms

fa-solid-900.ttf

fa-solid-900.ttf

969 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

702 ms

socicon.woff

socicon.woff

749 ms

Close-up-of-an-attacking-marlin-with-its-highly-contrasting-stripes-and-one-without-CREDIT-Alicia-Burns-215x120.jpg

Close-up-of-an-attacking-marlin-with-its-highly-contrasting-stripes-and-one-without-CREDIT-Alicia-Burns-215x120.jpg

718 ms

idefix-215x120.jpg

idefix-215x120.jpg

714 ms

original7-300x200.jpeg

original7-300x200.jpeg

742 ms

01_HR_Glaszelle_fuer_Quantengas-Experimente_6D8AEAA7-B850-4B81-A964-BE57C69803C4-e1712569791858-300x200.jpg

01_HR_Glaszelle_fuer_Quantengas-Experimente_6D8AEAA7-B850-4B81-A964-BE57C69803C4-e1712569791858-300x200.jpg

830 ms

24-05-02-KI-300x200.jpg

24-05-02-KI-300x200.jpg

829 ms

new-user

new-user

8 ms

new-user

new-user

209 ms

Bildergalerie-Biene-1.jpg

Bildergalerie-Biene-1.jpg

742 ms

05_ScreenHouse_Tomate_03_AE574452-DD8D-4670-9153-FEFAE4F7ED4B-e1712653680584-300x200.jpg

05_ScreenHouse_Tomate_03_AE574452-DD8D-4670-9153-FEFAE4F7ED4B-e1712653680584-300x200.jpg

739 ms

jquery.min.js

jquery.min.js

808 ms

iStock-89916610-300x200.jpg

iStock-89916610-300x200.jpg

808 ms

DAMALS_Podcast_Beitragsbild_RGB-300x200.png

DAMALS_Podcast_Beitragsbild_RGB-300x200.png

805 ms

24-04-30-resilienz-300x200.jpg

24-04-30-resilienz-300x200.jpg

787 ms

Space-Roboter-300x200.jpg

Space-Roboter-300x200.jpg

786 ms

cover_bdw-2024-005_sidebar.jpg

cover_bdw-2024-005_sidebar.jpg

810 ms

bdw_Nobel_Quiz_INSTAGRAM_Mai.png

bdw_Nobel_Quiz_INSTAGRAM_Mai.png

1091 ms

bdw_podcast.gif

bdw_podcast.gif

908 ms

damals_MuseumsGuide2022_300x270.jpg

damals_MuseumsGuide2022_300x270.jpg

808 ms

pv-data

pv-data

329 ms

newsimage379372-300x200.jpg

newsimage379372-300x200.jpg

697 ms

23-06-affen-300x200.jpg

23-06-affen-300x200.jpg

697 ms

22-09-19-ameisen-300x200.jpg

22-09-19-ameisen-300x200.jpg

788 ms

Specht-300x200.jpg

Specht-300x200.jpg

789 ms

iStock-618463814-1-300x200.jpg

iStock-618463814-1-300x200.jpg

789 ms

AdobeStock_215469939-300x200.jpeg

AdobeStock_215469939-300x200.jpeg

713 ms

cover_moorland_800x560-300x200.jpg

cover_moorland_800x560-300x200.jpg

800 ms

Quantencomputer-300x200.jpg

Quantencomputer-300x200.jpg

802 ms

batterien-der-zukunft-300x200.jpg

batterien-der-zukunft-300x200.jpg

801 ms

Dolche-300x200.jpg

Dolche-300x200.jpg

801 ms

Fussball-300x200.jpg

Fussball-300x200.jpg

803 ms

index.html

index.html

74 ms

Fraunhofer_IPA_weiss_transparent-300x84.png

Fraunhofer_IPA_weiss_transparent-300x84.png

822 ms

polyfills.b0798.js

polyfills.b0798.js

52 ms

Notice.0575a.js

Notice.0575a.js

127 ms

Notice.c6498.css

Notice.c6498.css

134 ms

Leibniz_ifl_weiss_transparent-300x88.png

Leibniz_ifl_weiss_transparent-300x88.png

762 ms

wissen_de_original_transparent-300x35.png

wissen_de_original_transparent-300x35.png

686 ms

pv-data

pv-data

171 ms

scinexx_original_transparent-300x72.png

scinexx_original_transparent-300x72.png

651 ms

Science_Blogs_original_transparent-300x84.png

Science_Blogs_original_transparent-300x84.png

650 ms

experimenta-logo-white-300x68.png

experimenta-logo-white-300x68.png

713 ms

jquery-migrate.min.js

jquery-migrate.min.js

464 ms

Accessibility Review

wissenschaft.de accessibility score

73

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

wissenschaft.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

SEO Factors

wissenschaft.de SEO score

85

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 Wissenschaft.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 Wissenschaft.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

wissenschaft.de

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