Report Summary

  • 82

    Performance

    Renders faster than
    87% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 87% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

alleexamens.nl

AlleExamens.nl | Oefen met examens voor vwo, havo en vmbo

Page Load Speed

1.6 sec in total

First Response

224 ms

Resources Loaded

1.2 sec

Page Rendered

189 ms

alleexamens.nl screenshot

About Website

Click here to check amazing Alle Examens content for Netherlands. Otherwise, check out these important facts you probably never knew about alleexamens.nl

✓Alle examens vanaf 1999 (vwo en havo) of 2003 (vmbo) op een rij ✓Een opgave kunnen zoeken in alle examens tegelijk ✓Alles is gratis en zonder inloggen te bekijken

Visit alleexamens.nl

Key Findings

We analyzed Alleexamens.nl page load time and found that the first response time was 224 ms and then it took 1.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

alleexamens.nl performance score

82

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

62/100

10%

LCP (Largest Contentful Paint)

Value2.6 s

86/100

25%

SI (Speed Index)

Value3.0 s

94/100

10%

TBT (Total Blocking Time)

Value350 ms

73/100

30%

CLS (Cumulative Layout Shift)

Value0.015

100/100

15%

TTI (Time to Interactive)

Value4.3 s

84/100

10%

Network Requests Diagram

224 ms

prototype.js

117 ms

scriptaculous.js

203 ms

lightbox.js

196 ms

lightbox.css

162 ms

Our browser made a total of 36 requests to load all elements on the main page. We found that 78% of them (28 requests) were addressed to the original Alleexamens.nl, 6% (2 requests) were made to Facebook.com and 6% (2 requests) were made to Staticxx.facebook.com. The less responsive or slowest element that took the longest time to load (320 ms) belongs to the original domain Alleexamens.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 51.0 kB (41%)

Content Size

125.5 kB

After Optimization

74.5 kB

In fact, the total size of Alleexamens.nl main page is 125.5 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. 25% of websites need less resources to load. Images take 47.3 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 17.5 kB

  • Original 22.9 kB
  • After minification 18.5 kB
  • After compression 5.4 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. This page needs HTML code to be minified as it can gain 4.4 kB, which is 19% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 17.5 kB or 76% of the original size.

Image Optimization

-4%

Potential reduce by 1.7 kB

  • Original 47.3 kB
  • After minification 45.6 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. Alle Examens images are well optimized though.

JavaScript Optimization

-9%

Potential reduce by 1.8 kB

  • Original 20.0 kB
  • After minification 19.0 kB
  • After compression 18.1 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. This website has mostly compressed JavaScripts.

CSS Optimization

-85%

Potential reduce by 30.0 kB

  • Original 35.3 kB
  • After minification 23.6 kB
  • After compression 5.3 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. Alleexamens.nl needs all CSS files to be minified and compressed as it can save up to 30.0 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (41%)

Requests Now

29

After Optimization

17

The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Alle Examens. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

alleexamens.nl accessibility score

95

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

Heading elements are not in a sequentially-descending order

Best Practices

alleexamens.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

SEO Factors

alleexamens.nl SEO score

92

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

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 Alleexamens.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 Alleexamens.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 Alle Examens. 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: