Tools & Wizards About Us
kunstsammlung.de screenshot

Report Summary

  • 47

    Performance

    Renders faster than
    66% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

kunstsammlung.de

Kunstsammlung NRW: Startseite

Page Load Speed

14.1 sec in total

First Response

241 ms

Resources Loaded

4.3 sec

Page Rendered

9.6 sec

kunstsammlung.de screenshot

About Website

Welcome to kunstsammlung.de homepage info - get ready to check Kunstsammlung best content for Germany right away, or after learning these important things about kunstsammlung.de

International renommierte Kunstsammlung und Ausstellungen der klassischen Moderne und Gegenwartskunst. Besuchen Sie K20 und K21 in Düsseldorf!

Visit kunstsammlung.de

Key Findings

We analyzed Kunstsammlung.de page load time and found that the first response time was 241 ms and then it took 13.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

kunstsammlung.de performance score

47

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

17/100

10%

LCP (Largest Contentful Paint)

Value7.5 s

4/100

25%

SI (Speed Index)

Value10.4 s

8/100

10%

TBT (Total Blocking Time)

Value100 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.087

93/100

15%

TTI (Time to Interactive)

Value24.0 s

1/100

10%

Network Requests Diagram

kunstsammlung.de

241 ms

kunstsammlung.de

397 ms

www.kunstsammlung.de

290 ms

de

772 ms

swiper-bundle.min.css

275 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 98% of them (41 requests) were addressed to the original Kunstsammlung.de, 2% (1 request) were made to Static.newsletter2go.com. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Kunstsammlung.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 16.6 MB (44%)

Content Size

38.0 MB

After Optimization

21.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Kunstsammlung.de main page is 38.0 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. Images take 37.3 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 65.0 kB

  • Original 77.6 kB
  • After minification 56.1 kB
  • After compression 12.6 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 21.5 kB, which is 28% 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 65.0 kB or 84% of the original size.

Image Optimization

-43%

Potential reduce by 16.0 MB

  • Original 37.3 MB
  • After minification 21.3 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. Obviously, Kunstsammlung needs image optimization as it can save up to 16.0 MB or 43% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-71%

Potential reduce by 258.3 kB

  • Original 364.8 kB
  • After minification 343.6 kB
  • After compression 106.4 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 258.3 kB or 71% of the original size.

CSS Optimization

-88%

Potential reduce by 251.6 kB

  • Original 286.0 kB
  • After minification 231.0 kB
  • After compression 34.5 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. Kunstsammlung.de needs all CSS files to be minified and compressed as it can save up to 251.6 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (26%)

Requests Now

35

After Optimization

26

  • Images
  • JavaScript
  • CSS

The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kunstsammlung. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

kunstsammlung.de

kunstsammlung.de

241 ms

kunstsammlung.de

kunstsammlung.de

397 ms

www.kunstsammlung.de

www.kunstsammlung.de

290 ms

de

de

772 ms

swiper-bundle.min.css

swiper-bundle.min.css

275 ms

default.css

default.css

650 ms

231127_KUN_KuK_Home_Start_Slider_1024x430_2.png

231127_KUN_KuK_Home_Start_Slider_1024x430_2.png

672 ms

230801_KUN_FGM_Home_Start_Slider_1024x430.png

230801_KUN_FGM_Home_Start_Slider_1024x430.png

557 ms

240122_KUN_MK_Home_Start_Slider_1024x430.png

240122_KUN_MK_Home_Start_Slider_1024x430.png

838 ms

240327_KUN_MK_Home_Start_Slider_1024x430.png

240327_KUN_MK_Home_Start_Slider_1024x430.png

1052 ms

K21_Neuinstallation_Sammlung_Hito_Steyerl_Juli_2022_Achim_Kukulies_1024x430.png

K21_Neuinstallation_Sammlung_Hito_Steyerl_Juli_2022_Achim_Kukulies_1024x430.png

788 ms

Matisse%2CLe_Gou%CC%82ter_1904.jpg

Matisse%2CLe_Gou%CC%82ter_1904.jpg

851 ms

Hito_Steyerl_009.jpg

Hito_Steyerl_009.jpg

1040 ms

Entwurf_Kachel_GlobalArt2_1.jpg

Entwurf_Kachel_GlobalArt2_1.jpg

771 ms

startseite.png

startseite.png

870 ms

220622_K21VR_FlyerImage_Cover_TC_klein.png

220622_K21VR_FlyerImage_Cover_TC_klein.png

1735 ms

T_033.jpg

T_033.jpg

942 ms

240412-kunstsammlung.forthcoming-andreas_.endermann-139_.jpg

240412-kunstsammlung.forthcoming-andreas_.endermann-139_.jpg

1046 ms

Lisa_Marie_BackmannDSC00026_2.jpg

Lisa_Marie_BackmannDSC00026_2.jpg

972 ms

DSC_8536.jpg

DSC_8536.jpg

1047 ms

Social_Media_Kachel_Digital_Kunstsammlung_NRW_395x368.jpg

Social_Media_Kachel_Digital_Kunstsammlung_NRW_395x368.jpg

1067 ms

DSC02945-Lisa_Marie_Backmann.jpg

DSC02945-Lisa_Marie_Backmann.jpg

1237 ms

Tickets_Kunstsammlung_NRW_495x368.jpg

Tickets_Kunstsammlung_NRW_495x368.jpg

1139 ms

Kataloge_Kunstsammlung_NRW_495x368.jpg

Kataloge_Kunstsammlung_NRW_495x368.jpg

1140 ms

Editionen_Kunstsammlung_NRW_495x368.jpg

Editionen_Kunstsammlung_NRW_495x368.jpg

1143 ms

Freunde_der_Kunstsammlung_NRW_495x368.jpg

Freunde_der_Kunstsammlung_NRW_495x368.jpg

1074 ms

Engagement_Einstiegsseite_495x368.jpg

Engagement_Einstiegsseite_495x368.jpg

1153 ms

Vermietung_K21_Kuppel_Foto_Kunstsammlung_Kunstsammlung_NRW_495x368.jpg

Vermietung_K21_Kuppel_Foto_Kunstsammlung_Kunstsammlung_NRW_495x368.jpg

1154 ms

jquery-2.2.4.min.js

jquery-2.2.4.min.js

1153 ms

jquery.form.js

jquery.form.js

1186 ms

popper.min.js

popper.min.js

1244 ms

bootstrap.min.js

bootstrap.min.js

1246 ms

classie.js

classie.js

1245 ms

readmore.min.js

readmore.min.js

1252 ms

swiper-bundle.min.js

swiper-bundle.min.js

1261 ms

jquery.easing.min.js

jquery.easing.min.js

1335 ms

scripts.js

scripts.js

1349 ms

ksnrw-logo.svg

ksnrw-logo.svg

880 ms

UntitledSansWeb-Medium.woff

UntitledSansWeb-Medium.woff

819 ms

UntitledSansWeb-Bold.woff

UntitledSansWeb-Bold.woff

821 ms

ksnrw.ttf

ksnrw.ttf

864 ms

utils.js

utils.js

590 ms

Accessibility Review

kunstsammlung.de accessibility score

82

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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.

Best Practices

kunstsammlung.de best practices score

83

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

Page has valid source maps

SEO Factors

kunstsammlung.de SEO score

90

Search Engine Optimization Advices

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

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 Kunstsammlung.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 Kunstsammlung.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

kunstsammlung.de

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