Tools & Wizards About Us
atriumfibrilleren.nl screenshot

Report Summary

  • 47

    Performance

    Renders faster than
    65% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

atriumfibrilleren.nl

Atriumfibrilleren: wat is het? Lees hier alles over atriumfibrilleren.

Page Load Speed

2.3 sec in total

First Response

554 ms

Resources Loaded

1.6 sec

Page Rendered

198 ms

atriumfibrilleren.nl screenshot

About Website

Welcome to atriumfibrilleren.nl homepage info - get ready to check Atriumfibrilleren best content right away, or after learning these important things about atriumfibrilleren.nl

Op deze site leest u alles over de hartritmestoornis atriumfibrilleren. Wat is het? Hoe onstaat het? En wat kunt u doen? Lees alle informatie hier.

Visit atriumfibrilleren.nl

Key Findings

We analyzed Atriumfibrilleren.nl page load time and found that the first response time was 554 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

atriumfibrilleren.nl performance score

47

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value6.1 s

12/100

25%

SI (Speed Index)

Value5.8 s

49/100

10%

TBT (Total Blocking Time)

Value510 ms

57/100

30%

CLS (Cumulative Layout Shift)

Value0.11

87/100

15%

TTI (Time to Interactive)

Value6.4 s

59/100

10%

Network Requests Diagram

www.atriumfibrilleren.nl

554 ms

plusone.js

58 ms

google_service.js

31 ms

general.css

178 ms

hoofdkleur-rood.css

179 ms

Our browser made a total of 37 requests to load all elements on the main page. We found that 5% of them (2 requests) were addressed to the original Atriumfibrilleren.nl, 30% (11 requests) were made to General.medistart.nl and 14% (5 requests) were made to Tpc.googlesyndication.com. The less responsive or slowest element that took the longest time to load (554 ms) belongs to the original domain Atriumfibrilleren.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 95.9 kB (27%)

Content Size

351.1 kB

After Optimization

255.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Atriumfibrilleren.nl main page is 351.1 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. 40% of websites need less resources to load. Javascripts take 159.5 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 23.3 kB

  • Original 28.9 kB
  • After minification 21.1 kB
  • After compression 5.6 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 7.9 kB, which is 27% 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 23.3 kB or 81% of the original size.

Image Optimization

-1%

Potential reduce by 1.9 kB

  • Original 134.1 kB
  • After minification 132.3 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. Atriumfibrilleren images are well optimized though.

JavaScript Optimization

-29%

Potential reduce by 46.3 kB

  • Original 159.5 kB
  • After minification 159.4 kB
  • After compression 113.2 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 46.3 kB or 29% of the original size.

CSS Optimization

-86%

Potential reduce by 24.4 kB

  • Original 28.6 kB
  • After minification 22.1 kB
  • After compression 4.1 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. Atriumfibrilleren.nl needs all CSS files to be minified and compressed as it can save up to 24.4 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (64%)

Requests Now

36

After Optimization

13

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Atriumfibrilleren. 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 from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.atriumfibrilleren.nl

www.atriumfibrilleren.nl

554 ms

plusone.js

plusone.js

58 ms

google_service.js

google_service.js

31 ms

general.css

general.css

178 ms

hoofdkleur-rood.css

hoofdkleur-rood.css

179 ms

steunkleur-paars.css

steunkleur-paars.css

180 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

6 ms

google_ads.js

google_ads.js

26 ms

adsbygoogle.js

adsbygoogle.js

22 ms

javascript.gp

javascript.gp

186 ms

cookieControl-5.1.min.js

cookieControl-5.1.min.js

263 ms

ga.js

ga.js

7 ms

spacer.gif

spacer.gif

92 ms

rood-logo.gif

rood-logo.gif

157 ms

__utm.gif

__utm.gif

11 ms

icon-16x16-print.gif

icon-16x16-print.gif

116 ms

icon-16x16-favorites.gif

icon-16x16-favorites.gif

114 ms

ads

ads

47 ms

rood-achtergrond.gif

rood-achtergrond.gif

83 ms

rood-middenbalk.gif

rood-middenbalk.gif

159 ms

paars-linkermenu.gif

paars-linkermenu.gif

160 ms

ca-pub-8643595491450826.js

ca-pub-8643595491450826.js

29 ms

zrt_lookup.html

zrt_lookup.html

27 ms

show_ads_impl.js

show_ads_impl.js

43 ms

ads

ads

294 ms

jquery.min.js

jquery.min.js

16 ms

osd.js

osd.js

14 ms

printerfriendly.css

printerfriendly.css

81 ms

ads

ads

285 ms

ga.js

ga.js

21 ms

8044798870682609840

8044798870682609840

61 ms

abg.js

abg.js

47 ms

m_js_controller.js

m_js_controller.js

60 ms

googlelogo_color_112x36dp.png

googlelogo_color_112x36dp.png

43 ms

13603675896540066915

13603675896540066915

27 ms

s

s

44 ms

x_button_blue2.png

x_button_blue2.png

42 ms

Accessibility Review

atriumfibrilleren.nl accessibility score

84

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

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

atriumfibrilleren.nl best practices score

75

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

atriumfibrilleren.nl SEO score

93

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

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

    NL

  • Language Claimed

    NL

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Atriumfibrilleren.nl can be misinterpreted by Google and other search engines. Our service has detected that Dutch is used on the page, and it matches the claimed language. Our system also found out that Atriumfibrilleren.nl main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

atriumfibrilleren.nl

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