Report Summary

  • 55

    Performance

    Renders faster than
    72% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 75% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

stedelijk.nl

Stedelijk Museum Amsterdam

Page Load Speed

3.2 sec in total

First Response

912 ms

Resources Loaded

2.1 sec

Page Rendered

188 ms

stedelijk.nl screenshot

About Website

Click here to check amazing Stedelijk content for Netherlands. Otherwise, check out these important facts you probably never knew about stedelijk.nl

Welcome to the must-see museum for modern and contemporary art and design in Amsterdam. Rich collection with Piet Mondrian, Marc Chagall, Karel Appel, Yayoi Kusama, Marlene Dumas, Rineke Dijkstra, Pic...

Visit stedelijk.nl

Key Findings

We analyzed Stedelijk.nl page load time and found that the first response time was 912 ms and then it took 2.2 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

stedelijk.nl performance score

55

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

39/100

10%

LCP (Largest Contentful Paint)

Value3.9 s

52/100

25%

SI (Speed Index)

Value5.8 s

49/100

10%

TBT (Total Blocking Time)

Value470 ms

60/100

30%

CLS (Cumulative Layout Shift)

Value0.048

99/100

15%

TTI (Time to Interactive)

Value14.9 s

8/100

10%

Network Requests Diagram

stedelijk.nl

912 ms

jquery.min.js

33 ms

jcarousellite_1.0.1.min.js

223 ms

lightbox.js

306 ms

732 ms

Our browser made a total of 39 requests to load all elements on the main page. We found that 69% of them (27 requests) were addressed to the original Stedelijk.nl, 5% (2 requests) were made to Google-analytics.com and 5% (2 requests) were made to Wd-edge.sharethis.com. The less responsive or slowest element that took the longest time to load (912 ms) belongs to the original domain Stedelijk.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 159.4 kB (36%)

Content Size

437.7 kB

After Optimization

278.3 kB

In fact, the total size of Stedelijk.nl main page is 437.7 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. 30% of websites need less resources to load. Javascripts take 213.4 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 26.9 kB

  • Original 34.3 kB
  • After minification 28.6 kB
  • After compression 7.4 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. This page needs HTML code to be minified as it can gain 5.7 kB, which is 17% 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 26.9 kB or 78% of the original size.

Image Optimization

-8%

Potential reduce by 14.3 kB

  • Original 190.0 kB
  • After minification 175.7 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. Stedelijk images are well optimized though.

JavaScript Optimization

-55%

Potential reduce by 118.2 kB

  • Original 213.4 kB
  • After minification 212.0 kB
  • After compression 95.3 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 118.2 kB or 55% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (25%)

Requests Now

36

After Optimization

27

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Stedelijk. 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.

Accessibility Review

stedelijk.nl accessibility score

90

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-*] attributes do not match their roles

High

[aria-hidden="true"] elements contain focusable descendents

Best Practices

stedelijk.nl 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

High

Page has valid source maps

SEO Factors

stedelijk.nl SEO score

100

Search Engine Optimization Advices

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

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Stedelijk.nl can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Stedelijk.nl 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 Stedelijk. 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: