Tools & Wizards About Us

Report Summary

  • 67

    Performance

    Renders faster than
    79% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 86% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 97

    SEO

    Google-friendlier than
    91% of websites

qcn.nl

Quality Centre Nederland: Informatie en integrale veiligheid

Page Load Speed

1.5 sec in total

First Response

713 ms

Resources Loaded

730 ms

Page Rendered

81 ms

About Website

Visit qcn.nl now to see the best up-to-date Qcn content and also check out these interesting facts you probably never knew about qcn.nl

Quality Centre Nederland biedt gepassioneerde interimmers, CISO, beveiligingsfunctionarissen en Functionarissen Gegevensbescherming voor de overheid.

Visit qcn.nl

Key Findings

We analyzed Qcn.nl page load time and found that the first response time was 713 ms and then it took 811 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster. This domain responded with an error, which can significantly jeopardize Qcn.nl rating and web reputation

Performance Metrics

qcn.nl performance score

67

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

39/100

10%

LCP (Largest Contentful Paint)

Value5.4 s

20/100

25%

SI (Speed Index)

Value5.0 s

64/100

10%

TBT (Total Blocking Time)

Value110 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0.031

100/100

15%

TTI (Time to Interactive)

Value5.3 s

72/100

10%

Network Requests Diagram

qcn.nl

713 ms

Our browser made a total of 1 request to load all elements on the main page. We found that all of those requests were addressed to Qcn.nl and no external sources were called. The less responsive or slowest element that took the longest time to load (713 ms) belongs to the original domain Qcn.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 54.5 kB (6%)

Content Size

914.4 kB

After Optimization

860.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Qcn.nl main page is 914.4 kB. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. Images take 655.2 kB which makes up the majority of the site volume.

HTML Optimization

-33%

Potential reduce by 45 B

  • Original 138 B
  • After minification 136 B
  • After compression 93 B

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 45 B or 33% of the original size.

Image Optimization

-0%

Potential reduce by 110 B

  • Original 655.2 kB
  • After minification 655.1 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. Qcn images are well optimized though.

JavaScript Optimization

-18%

Potential reduce by 17.3 kB

  • Original 96.7 kB
  • After minification 96.7 kB
  • After compression 79.4 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 17.3 kB or 18% of the original size.

CSS Optimization

-23%

Potential reduce by 37.0 kB

  • Original 162.4 kB
  • After minification 162.4 kB
  • After compression 125.4 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. Qcn.nl needs all CSS files to be minified and compressed as it can save up to 37.0 kB or 23% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

0

After Optimization

0

Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.

Network Requests Diagram

Accessibility Review

qcn.nl accessibility score

95

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

Best Practices

qcn.nl best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

qcn.nl SEO score

97

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    NL

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Qcn.nl can be misinterpreted by Google and other search engines. Our service has detected that Dutch 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 Qcn.nl main page’s claimed encoding is . 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

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