Tools & Wizards About Us
rietberg.ch screenshot

Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

rietberg.ch

Kunst der Welt in Zürich - Museum Rietberg

Page Load Speed

2.2 sec in total

First Response

144 ms

Resources Loaded

2 sec

Page Rendered

117 ms

rietberg.ch screenshot

About Website

Welcome to rietberg.ch homepage info - get ready to check Rietberg best content for Switzerland right away, or after learning these important things about rietberg.ch

Das Museum Rietberg widmet sich der Kunst der traditionellen, aber auch der zeitgenössischen Kulturen Asiens, Afrikas, Amerikas und Ozeaniens.

Visit rietberg.ch

Key Findings

We analyzed Rietberg.ch page load time and found that the first response time was 144 ms and then it took 2.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

rietberg.ch performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value16.3 s

0/100

25%

SI (Speed Index)

Value13.4 s

2/100

10%

TBT (Total Blocking Time)

Value2,070 ms

7/100

30%

CLS (Cumulative Layout Shift)

Value0.004

100/100

15%

TTI (Time to Interactive)

Value18.4 s

3/100

10%

Network Requests Diagram

home.aspx

144 ms

museum_rietberg.css

100 ms

jcarousel.css

159 ms

jquery-1.6.1.min.js

560 ms

jquery.jcarousel.min.js

298 ms

Our browser made a total of 33 requests to load all elements on the main page. We found that all of those requests were addressed to Rietberg.ch and no external sources were called. The less responsive or slowest element that took the longest time to load (560 ms) belongs to the original domain Rietberg.ch.

Page Optimization Overview & Recommendations

Page size can be reduced by 278.3 kB (51%)

Content Size

541.1 kB

After Optimization

262.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rietberg.ch main page is 541.1 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. 20% of websites need less resources to load. Javascripts take 290.5 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 15.9 kB

  • Original 19.8 kB
  • After minification 17.9 kB
  • After compression 3.9 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 15.9 kB or 80% of the original size.

Image Optimization

-7%

Potential reduce by 11.9 kB

  • Original 178.6 kB
  • After minification 166.7 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. Rietberg images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 206.3 kB

  • Original 290.5 kB
  • After minification 270.2 kB
  • After compression 84.2 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 206.3 kB or 71% of the original size.

CSS Optimization

-85%

Potential reduce by 44.2 kB

  • Original 52.2 kB
  • After minification 38.6 kB
  • After compression 8.0 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. Rietberg.ch needs all CSS files to be minified and compressed as it can save up to 44.2 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (30%)

Requests Now

30

After Optimization

21

  • Images
  • JavaScript
  • CSS

The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rietberg. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

home.aspx

home.aspx

144 ms

museum_rietberg.css

museum_rietberg.css

100 ms

jcarousel.css

jcarousel.css

159 ms

jquery-1.6.1.min.js

jquery-1.6.1.min.js

560 ms

jquery.jcarousel.min.js

jquery.jcarousel.min.js

298 ms

jquery-ui-1.8.15.custom.min.js

jquery-ui-1.8.15.custom.min.js

318 ms

jwplayer.js

jwplayer.js

351 ms

jquery.mousewheel-3.0.4.pack.js

jquery.mousewheel-3.0.4.pack.js

200 ms

jquery.fancybox-1.3.4.js

jquery.fancybox-1.3.4.js

271 ms

jquery.fancybox-1.3.4.css

jquery.fancybox-1.3.4.css

312 ms

common.js

common.js

367 ms

bg.gif

bg.gif

109 ms

bg_nav_uti_separator.gif

bg_nav_uti_separator.gif

105 ms

img_logo_museum_rietberg_2014.gif

img_logo_museum_rietberg_2014.gif

106 ms

marke_onlineshop_f1_132x136.png

marke_onlineshop_f1_132x136.png

110 ms

schriftkunst_gesicht_202x144.jpg

schriftkunst_gesicht_202x144.jpg

306 ms

teezeremonie_202x144.jpg

teezeremonie_202x144.jpg

299 ms

anderewelten_202x144.jpg

anderewelten_202x144.jpg

208 ms

religionkultur_202x144px.jpg

religionkultur_202x144px.jpg

307 ms

dada_home_202x144px.jpg

dada_home_202x144px.jpg

211 ms

artisttalk_senam_202x144px.jpg

artisttalk_senam_202x144px.jpg

335 ms

shop_nov15_202x144px.jpg

shop_nov15_202x144px.jpg

317 ms

oeffnungszeiten_202x144px.jpg

oeffnungszeiten_202x144px.jpg

315 ms

bg_agenda_todays_events_top.png

bg_agenda_todays_events_top.png

404 ms

bullet.gif

bullet.gif

410 ms

but_fb_yt.png

but_fb_yt.png

408 ms

but_agenda_scroller_up.png

but_agenda_scroller_up.png

390 ms

but_agenda_scroller_up_inactive.png

but_agenda_scroller_up_inactive.png

396 ms

but_agenda_scroller_down.png

but_agenda_scroller_down.png

403 ms

but_agenda_scroller_down_inactive.png

but_agenda_scroller_down_inactive.png

492 ms

din_regular-webfont.woff

din_regular-webfont.woff

488 ms

din_bold-webfont.woff

din_bold-webfont.woff

497 ms

print.css

print.css

99 ms

Accessibility Review

rietberg.ch accessibility score

80

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

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

rietberg.ch 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

Missing source maps for large first-party JavaScript

SEO Factors

rietberg.ch SEO score

84

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

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 Rietberg.ch 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 Rietberg.ch 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

rietberg.ch

Open Graph description is not detected on the main page of Rietberg. 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: