Report Summary

  • 28

    Performance

    Renders faster than
    48% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

cocalkmaar.nl

COC Noord-Holland Noord – voor Acceptatie & Gelijkheid

Page Load Speed

3.6 sec in total

First Response

271 ms

Resources Loaded

3.1 sec

Page Rendered

288 ms

cocalkmaar.nl screenshot

About Website

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

Visit cocalkmaar.nl

Key Findings

We analyzed Cocalkmaar.nl page load time and found that the first response time was 271 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

cocalkmaar.nl performance score

28

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

26/100

10%

LCP (Largest Contentful Paint)

Value15.7 s

0/100

25%

SI (Speed Index)

Value15.6 s

0/100

10%

TBT (Total Blocking Time)

Value940 ms

29/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value13.1 s

12/100

10%

Network Requests Diagram

cocalkmaar.nl

271 ms

www.cocnoordhollandnoord.nl

1730 ms

wp-emoji-release.min.js

169 ms

flick.css

248 ms

www.cocnoordhollandnoord.nl

627 ms

Our browser made a total of 54 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Cocalkmaar.nl, 67% (36 requests) were made to Cocnoordhollandnoord.nl and 7% (4 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.7 sec) relates to the external source Cocnoordhollandnoord.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 455.3 kB (68%)

Content Size

671.5 kB

After Optimization

216.1 kB

In fact, the total size of Cocalkmaar.nl main page is 671.5 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. 50% of websites need less resources to load. Javascripts take 351.9 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 36.5 kB

  • Original 47.0 kB
  • After minification 45.3 kB
  • After compression 10.6 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. 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 36.5 kB or 78% of the original size.

Image Optimization

-8%

Potential reduce by 5.5 kB

  • Original 68.1 kB
  • After minification 62.7 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. COC Alkmaar images are well optimized though.

JavaScript Optimization

-72%

Potential reduce by 252.9 kB

  • Original 351.9 kB
  • After minification 310.0 kB
  • After compression 99.0 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 252.9 kB or 72% of the original size.

CSS Optimization

-79%

Potential reduce by 160.5 kB

  • Original 204.4 kB
  • After minification 175.1 kB
  • After compression 43.9 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. Cocalkmaar.nl needs all CSS files to be minified and compressed as it can save up to 160.5 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 33 (70%)

Requests Now

47

After Optimization

14

The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of COC Alkmaar. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

cocalkmaar.nl accessibility score

81

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

[id] attributes on active, focusable elements are not unique

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

cocalkmaar.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

Missing source maps for large first-party JavaScript

SEO Factors

cocalkmaar.nl SEO score

92

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

    NL

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cocalkmaar.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 Cocalkmaar.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 COC Alkmaar. 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: