Report Summary

  • 52

    Performance

    Renders faster than
    70% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 50% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

nederlands-leren.net

Gratis Nederlands leren | Nederlands leren Online

Page Load Speed

1.9 sec in total

First Response

364 ms

Resources Loaded

1.4 sec

Page Rendered

158 ms

nederlands-leren.net screenshot

About Website

Visit nederlands-leren.net now to see the best up-to-date Nederlands Leren content for Netherlands and also check out these interesting facts you probably never knew about nederlands-leren.net

Taal Nederlands - cursus nederlands - Nederlands leren Online

Visit nederlands-leren.net

Key Findings

We analyzed Nederlands-leren.net page load time and found that the first response time was 364 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

nederlands-leren.net performance score

52

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

67/100

10%

LCP (Largest Contentful Paint)

Value2.7 s

86/100

25%

SI (Speed Index)

Value4.8 s

67/100

10%

TBT (Total Blocking Time)

Value1,820 ms

9/100

30%

CLS (Cumulative Layout Shift)

Value0.17

70/100

15%

TTI (Time to Interactive)

Value8.1 s

41/100

10%

Network Requests Diagram

nederlands-leren.net

364 ms

styles.css

151 ms

jquery.min.js

292 ms

cookiecons.css

225 ms

cookiecons.js

225 ms

Our browser made a total of 30 requests to load all elements on the main page. We found that 10% of them (3 requests) were addressed to the original Nederlands-leren.net, 17% (5 requests) were made to 12c.info and 17% (5 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (533 ms) relates to the external source Googleads.g.doubleclick.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 175.8 kB (59%)

Content Size

298.1 kB

After Optimization

122.4 kB

In fact, the total size of Nederlands-leren.net main page is 298.1 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. 45% of websites need less resources to load. Javascripts take 165.9 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 21.8 kB

  • Original 26.8 kB
  • After minification 20.9 kB
  • After compression 5.0 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. This page needs HTML code to be minified as it can gain 5.9 kB, which is 22% 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 21.8 kB or 81% of the original size.

Image Optimization

-27%

Potential reduce by 17.2 kB

  • Original 64.6 kB
  • After minification 47.5 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. Obviously, Nederlands Leren needs image optimization as it can save up to 17.2 kB or 27% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-61%

Potential reduce by 100.7 kB

  • Original 165.9 kB
  • After minification 164.7 kB
  • After compression 65.3 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 100.7 kB or 61% of the original size.

CSS Optimization

-89%

Potential reduce by 36.1 kB

  • Original 40.8 kB
  • After minification 34.2 kB
  • After compression 4.7 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. Nederlands-leren.net needs all CSS files to be minified and compressed as it can save up to 36.1 kB or 89% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (42%)

Requests Now

24

After Optimization

14

The browser has sent 24 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nederlands Leren. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

nederlands-leren.net accessibility score

80

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

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

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

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

Best Practices

nederlands-leren.net best practices score

50

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

nederlands-leren.net 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 Nederlands-leren.net 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 Nederlands-leren.net 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 Nederlands Leren. 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: