Report Summary

  • 0

    Performance

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    57% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

handleidinghtml.nl

Handleiding HTML - De Nederlandse informatiebron op het gebied van HTML en CSS

Page Load Speed

1.6 sec in total

First Response

431 ms

Resources Loaded

1.1 sec

Page Rendered

106 ms

handleidinghtml.nl screenshot

About Website

Click here to check amazing Handleiding HTML content for Belgium. Otherwise, check out these important facts you probably never knew about handleidinghtml.nl

Handleiding HTML - De Nederlandse informatiebron op het gebied van HTML en CSS. Met veel voorbeelden, een uitgebreide uitleg van het gebruik van Cascading Style Sheets en een naslag van HTML-elementen...

Visit handleidinghtml.nl

Key Findings

We analyzed Handleidinghtml.nl page load time and found that the first response time was 431 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

handleidinghtml.nl performance score

0

Network Requests Diagram

handleidinghtml.nl

431 ms

basis.css

164 ms

algemeen.css

172 ms

start.css

173 ms

inh-html.html

255 ms

Our browser made a total of 22 requests to load all elements on the main page. We found that 95% of them (21 requests) were addressed to the original Handleidinghtml.nl, 5% (1 request) were made to Nht-3.extreme-dm.com. The less responsive or slowest element that took the longest time to load (431 ms) belongs to the original domain Handleidinghtml.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 250.2 kB (74%)

Content Size

337.8 kB

After Optimization

87.5 kB

In fact, the total size of Handleidinghtml.nl main page is 337.8 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. CSS take 165.7 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 6.4 kB

  • Original 8.9 kB
  • After minification 8.5 kB
  • After compression 2.5 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 6.4 kB or 71% of the original size.

Image Optimization

-12%

Potential reduce by 1.7 kB

  • Original 13.8 kB
  • After minification 12.2 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. Obviously, Handleiding HTML needs image optimization as it can save up to 1.7 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-68%

Potential reduce by 101.1 kB

  • Original 149.3 kB
  • After minification 146.2 kB
  • After compression 48.2 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 101.1 kB or 68% of the original size.

CSS Optimization

-85%

Potential reduce by 141.0 kB

  • Original 165.7 kB
  • After minification 128.8 kB
  • After compression 24.6 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. Handleidinghtml.nl needs all CSS files to be minified and compressed as it can save up to 141.0 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (48%)

Requests Now

21

After Optimization

11

The browser has sent 21 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Handleiding HTML. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

handleidinghtml.nl accessibility score

100

Accessibility Issues

Best Practices

handleidinghtml.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

SEO Factors

handleidinghtml.nl SEO score

67

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    NL

  • Language Claimed

    NL

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Handleidinghtml.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 Handleidinghtml.nl main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

Open Graph description is not detected on the main page of Handleiding HTML. 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: