Report Summary

  • 82

    Performance

    Renders faster than
    87% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 69% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

dehaagsescholen.nl

Home - De Haagse Scholen

Page Load Speed

3.2 sec in total

First Response

281 ms

Resources Loaded

2.7 sec

Page Rendered

154 ms

dehaagsescholen.nl screenshot

About Website

Click here to check amazing De Haagse Scholen content for Netherlands. Otherwise, check out these important facts you probably never knew about dehaagsescholen.nl

Den Haag is een bruisende stad met veelzijdige mensen. Een smeltkroes van achtergronden, overtuigingen en opvattingen. De Haagse Scholen weerspiegelt die

Visit dehaagsescholen.nl

Key Findings

We analyzed Dehaagsescholen.nl page load time and found that the first response time was 281 ms and then it took 2.9 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

dehaagsescholen.nl performance score

82

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

84/100

10%

LCP (Largest Contentful Paint)

Value3.6 s

61/100

25%

SI (Speed Index)

Value3.5 s

88/100

10%

TBT (Total Blocking Time)

Value240 ms

85/100

30%

CLS (Cumulative Layout Shift)

Value0.074

95/100

15%

TTI (Time to Interactive)

Value3.4 s

93/100

10%

Network Requests Diagram

www.dehaagsescholen.nl

281 ms

default.aspx

974 ms

controls.css

536 ms

search.css

525 ms

corev4.css

812 ms

Our browser made a total of 35 requests to load all elements on the main page. We found that all of those requests were addressed to Dehaagsescholen.nl and no external sources were called. The less responsive or slowest element that took the longest time to load (974 ms) belongs to the original domain Dehaagsescholen.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 631.1 kB (46%)

Content Size

1.4 MB

After Optimization

752.6 kB

In fact, the total size of Dehaagsescholen.nl main page is 1.4 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. 45% of websites need less resources to load. Images take 664.2 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 63.2 kB

  • Original 83.1 kB
  • After minification 81.0 kB
  • After compression 19.9 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 63.2 kB or 76% of the original size.

Image Optimization

-7%

Potential reduce by 49.7 kB

  • Original 664.2 kB
  • After minification 614.5 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. De Haagse Scholen images are well optimized though.

JavaScript Optimization

-75%

Potential reduce by 237.4 kB

  • Original 317.0 kB
  • After minification 311.0 kB
  • After compression 79.6 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 237.4 kB or 75% of the original size.

CSS Optimization

-88%

Potential reduce by 280.9 kB

  • Original 319.5 kB
  • After minification 218.1 kB
  • After compression 38.6 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. Dehaagsescholen.nl needs all CSS files to be minified and compressed as it can save up to 280.9 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (31%)

Requests Now

32

After Optimization

22

The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of De Haagse Scholen. 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 from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

dehaagsescholen.nl accessibility score

88

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

Image elements do not have [alt] attributes

Best Practices

dehaagsescholen.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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

dehaagsescholen.nl SEO score

93

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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 Dehaagsescholen.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 Dehaagsescholen.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 De Haagse Scholen. 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: