Report Summary

  • 56

    Performance

    Renders faster than
    74% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 93% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    57% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

computertraining.nl

Computercursussen en trainingen | Compu Act

Page Load Speed

5.1 sec in total

First Response

349 ms

Resources Loaded

4.4 sec

Page Rendered

304 ms

computertraining.nl screenshot

About Website

Visit computertraining.nl now to see the best up-to-date Compu Tertraining content for Netherlands and also check out these interesting facts you probably never knew about computertraining.nl

Kies uit 88 verschillende computercursussen door heel Nederland. Onze computertrainingen kun je zowel klassikaal, online als in-company volgen.

Visit computertraining.nl

Key Findings

We analyzed Computertraining.nl page load time and found that the first response time was 349 ms and then it took 4.7 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

computertraining.nl performance score

56

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

16/100

10%

LCP (Largest Contentful Paint)

Value6.7 s

7/100

25%

SI (Speed Index)

Value5.1 s

61/100

10%

TBT (Total Blocking Time)

Value180 ms

92/100

30%

CLS (Cumulative Layout Shift)

Value0.027

100/100

15%

TTI (Time to Interactive)

Value8.7 s

36/100

10%

Network Requests Diagram

computertraining.nl

349 ms

www.computertraining.nl

958 ms

jquery-1.9.1.min.js

410 ms

jquery.scrollTo.min.js

169 ms

jquery-ui-1.9.2.custom.min.js

581 ms

Our browser made a total of 130 requests to load all elements on the main page. We found that 84% of them (109 requests) were addressed to the original Computertraining.nl, 2% (3 requests) were made to Facebook.com and 2% (3 requests) were made to Vs3.tawk.to. The less responsive or slowest element that took the longest time to load (982 ms) belongs to the original domain Computertraining.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.9 MB (64%)

Content Size

2.9 MB

After Optimization

1.0 MB

In fact, the total size of Computertraining.nl main page is 2.9 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.7 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 100.4 kB

  • Original 121.4 kB
  • After minification 110.4 kB
  • After compression 21.0 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 100.4 kB or 83% of the original size.

Image Optimization

-57%

Potential reduce by 965.8 kB

  • Original 1.7 MB
  • After minification 742.7 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. Obviously, Compu Tertraining needs image optimization as it can save up to 965.8 kB or 57% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-73%

Potential reduce by 658.8 kB

  • Original 902.5 kB
  • After minification 862.6 kB
  • After compression 243.7 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 658.8 kB or 73% of the original size.

CSS Optimization

-85%

Potential reduce by 143.5 kB

  • Original 168.3 kB
  • After minification 141.3 kB
  • After compression 24.8 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. Computertraining.nl needs all CSS files to be minified and compressed as it can save up to 143.5 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 60 (49%)

Requests Now

122

After Optimization

62

The browser has sent 122 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Compu Tertraining. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

computertraining.nl accessibility score

97

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

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

Best Practices

computertraining.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

SEO Factors

computertraining.nl SEO score

93

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

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