Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 57% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

cdja.nl

CDJA. | CDJA, CDA-Jongeren

Page Load Speed

6 sec in total

First Response

1.7 sec

Resources Loaded

4.1 sec

Page Rendered

318 ms

cdja.nl screenshot

About Website

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

Het CDJA is de jongerenorganisatie, gelieerd aan het CDA en is lokaal, landelijk en internationaal actief. In het land zijn zo'n vijftig afdelingen actief.

Visit cdja.nl

Key Findings

We analyzed Cdja.nl page load time and found that the first response time was 1.7 sec and then it took 4.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

cdja.nl performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value16.2 s

0/100

10%

LCP (Largest Contentful Paint)

Value34.5 s

0/100

25%

SI (Speed Index)

Value30.2 s

0/100

10%

TBT (Total Blocking Time)

Value9,950 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.048

99/100

15%

TTI (Time to Interactive)

Value37.7 s

0/100

10%

Network Requests Diagram

cdja.nl

1668 ms

foundation.min.css

175 ms

style.css

184 ms

validationEngine.jquery.css

182 ms

pronamic-cookie-law-style.css

179 ms

Our browser made a total of 103 requests to load all elements on the main page. We found that 54% of them (56 requests) were addressed to the original Cdja.nl, 9% (9 requests) were made to Pbs.twimg.com and 5% (5 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Cdja.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 730.9 kB (48%)

Content Size

1.5 MB

After Optimization

801.7 kB

In fact, the total size of Cdja.nl main page is 1.5 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. 65% of websites need less resources to load. Images take 531.7 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 40.7 kB

  • Original 55.7 kB
  • After minification 55.7 kB
  • After compression 15.0 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 40.7 kB or 73% of the original size.

Image Optimization

-2%

Potential reduce by 8.5 kB

  • Original 531.7 kB
  • After minification 523.2 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. CDJA images are well optimized though.

JavaScript Optimization

-62%

Potential reduce by 296.5 kB

  • Original 475.9 kB
  • After minification 473.9 kB
  • After compression 179.4 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 296.5 kB or 62% of the original size.

CSS Optimization

-82%

Potential reduce by 385.1 kB

  • Original 469.3 kB
  • After minification 465.7 kB
  • After compression 84.2 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. Cdja.nl needs all CSS files to be minified and compressed as it can save up to 385.1 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 67 (68%)

Requests Now

99

After Optimization

32

The browser has sent 99 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CDJA. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 31 to 1 for JavaScripts and from 17 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

cdja.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.

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

cdja.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

cdja.nl SEO score

83

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

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 Cdja.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 Cdja.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 CDJA. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: