Tools & Wizards About Us

Report Summary

  • 40

    Performance

    Renders faster than
    59% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 86% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

opleiding-starten.nl

opleiding-training-cursus-workshop-thuisstudie-volgen-UWV

Page Load Speed

2.1 sec in total

First Response

231 ms

Resources Loaded

1.6 sec

Page Rendered

265 ms

About Website

Welcome to opleiding-starten.nl homepage info - get ready to check Opleiding Starten best content right away, or after learning these important things about opleiding-starten.nl

aanbod keuze online opleidingen cursussen workshops en trainingen vergelijk thuisstudies en klassikale studies keuze in prijs en inhoud studie pakket UWV

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Key Findings

We analyzed Opleiding-starten.nl page load time and found that the first response time was 231 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

opleiding-starten.nl performance score

40

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

40/100

10%

LCP (Largest Contentful Paint)

Value3.3 s

70/100

25%

SI (Speed Index)

Value5.4 s

56/100

10%

TBT (Total Blocking Time)

Value1,550 ms

13/100

30%

CLS (Cumulative Layout Shift)

Value0.27

45/100

15%

TTI (Time to Interactive)

Value10.3 s

25/100

10%

Network Requests Diagram

opleiding-starten.nl

231 ms

opleiding-starten.nl

402 ms

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94 ms

jsapi

44 ms

t13n

47 ms

Our browser made a total of 20 requests to load all elements on the main page. We found that 45% of them (9 requests) were addressed to the original Opleiding-starten.nl, 10% (2 requests) were made to Google.com and 10% (2 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (758 ms) belongs to the original domain Opleiding-starten.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 156.7 kB (13%)

Content Size

1.2 MB

After Optimization

1.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Opleiding-starten.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. 25% of websites need less resources to load. Images take 752.4 kB which makes up the majority of the site volume.

HTML Optimization

-64%

Potential reduce by 19.8 kB

  • Original 30.8 kB
  • After minification 29.7 kB
  • After compression 10.9 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 19.8 kB or 64% of the original size.

Image Optimization

-0%

Potential reduce by 1.5 kB

  • Original 752.4 kB
  • After minification 750.9 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. Opleiding Starten images are well optimized though.

JavaScript Optimization

-34%

Potential reduce by 133.8 kB

  • Original 395.8 kB
  • After minification 393.5 kB
  • After compression 262.1 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 133.8 kB or 34% of the original size.

CSS Optimization

-64%

Potential reduce by 1.7 kB

  • Original 2.6 kB
  • After minification 1.8 kB
  • After compression 927 B

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. Opleiding-starten.nl needs all CSS files to be minified and compressed as it can save up to 1.7 kB or 64% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (36%)

Requests Now

14

After Optimization

9

  • Images
  • JavaScript
  • CSS

The browser has sent 14 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Opleiding Starten. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

opleiding-starten.nl accessibility score

95

Accessibility Issues

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

opleiding-starten.nl best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

opleiding-starten.nl SEO score

100

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Opleiding-starten.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 Opleiding-starten.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 Opleiding Starten. 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: