Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

nca.nl

NCA

Page Load Speed

3.7 sec in total

First Response

853 ms

Resources Loaded

2.6 sec

Page Rendered

245 ms

nca.nl screenshot

About Website

Click here to check amazing NCA content. Otherwise, check out these important facts you probably never knew about nca.nl

Op de website van de Nederlandse Chiropractoren Associatie, de beroepsvereniging voor chiropractoren in Nederland, vindt u informatie over chiropractie.

Visit nca.nl

Key Findings

We analyzed Nca.nl page load time and found that the first response time was 853 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

nca.nl performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value12.7 s

0/100

25%

SI (Speed Index)

Value11.2 s

5/100

10%

TBT (Total Blocking Time)

Value3,030 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.086

93/100

15%

TTI (Time to Interactive)

Value18.8 s

3/100

10%

Network Requests Diagram

www.nca.nl

853 ms

wp-emoji-release.min.js

83 ms

jquery.fancybox.css

162 ms

jquery.mmenu.css

165 ms

global.css

166 ms

Our browser made a total of 53 requests to load all elements on the main page. We found that 79% of them (42 requests) were addressed to the original Nca.nl, 8% (4 requests) were made to Fonts.gstatic.com and 4% (2 requests) were made to S7.addthis.com. The less responsive or slowest element that took the longest time to load (853 ms) belongs to the original domain Nca.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 544.2 kB (46%)

Content Size

1.2 MB

After Optimization

627.4 kB

In fact, the total size of Nca.nl main page is 1.2 MB. 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 658.6 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 48.3 kB

  • Original 67.6 kB
  • After minification 65.0 kB
  • After compression 19.3 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 48.3 kB or 71% of the original size.

Image Optimization

-4%

Potential reduce by 14.5 kB

  • Original 385.2 kB
  • After minification 370.7 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. NCA images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 430.7 kB

  • Original 658.6 kB
  • After minification 655.3 kB
  • After compression 227.9 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 430.7 kB or 65% of the original size.

CSS Optimization

-84%

Potential reduce by 50.7 kB

  • Original 60.2 kB
  • After minification 48.6 kB
  • After compression 9.5 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. Nca.nl needs all CSS files to be minified and compressed as it can save up to 50.7 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 31 (65%)

Requests Now

48

After Optimization

17

The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of NCA. 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 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

nca.nl accessibility score

81

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

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

High

Some elements have a [tabindex] value greater than 0

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

nca.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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

nca.nl SEO score

90

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 Nca.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 Nca.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 data is detected on the main page of NCA. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: