Tools & Wizards About Us

Report Summary

  • 20

    Performance

    Renders faster than
    37% 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

  • 96

    SEO

    Google-friendlier than
    90% of websites

kennisdelen.org

Samenvattingen via KennisDelen - Deel jouw kennis - Samenvattingen

Page Load Speed

12 sec in total

First Response

376 ms

Resources Loaded

11.2 sec

Page Rendered

387 ms

About Website

Visit kennisdelen.org now to see the best up-to-date Kennis Delen content for Netherlands and also check out these interesting facts you probably never knew about kennisdelen.org

Samenvattingen, uittreksels, aantekeningen, notities en uittreksels direct van studenten. Deel je eigen schoolwerk en verdien geld. Kennisdelen!

Visit kennisdelen.org

Key Findings

We analyzed Kennisdelen.org page load time and found that the first response time was 376 ms and then it took 11.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

kennisdelen.org performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.8 s

2/100

10%

LCP (Largest Contentful Paint)

Value8.9 s

1/100

25%

SI (Speed Index)

Value21.2 s

0/100

10%

TBT (Total Blocking Time)

Value860 ms

33/100

30%

CLS (Cumulative Layout Shift)

Value0.205

60/100

15%

TTI (Time to Interactive)

Value13.9 s

10/100

10%

Network Requests Diagram

kennisdelen.org

376 ms

www.kennisdelen.org

6774 ms

wp-emoji-release.min.js

149 ms

validationEngine.jquery.css

236 ms

style.min.css

266 ms

Our browser made a total of 104 requests to load all elements on the main page. We found that 83% of them (86 requests) were addressed to the original Kennisdelen.org, 7% (7 requests) were made to Fonts.gstatic.com and 4% (4 requests) were made to Pro.fontawesome.com. The less responsive or slowest element that took the longest time to load (6.8 sec) belongs to the original domain Kennisdelen.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 242.3 kB (23%)

Content Size

1.0 MB

After Optimization

800.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Kennisdelen.org main page is 1.0 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. 70% of websites need less resources to load. Javascripts take 338.3 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 162.9 kB

  • Original 195.7 kB
  • After minification 169.5 kB
  • After compression 32.8 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 26.2 kB, which is 13% 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 162.9 kB or 83% of the original size.

Image Optimization

-1%

Potential reduce by 1.9 kB

  • Original 279.9 kB
  • After minification 278.0 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. Kennis Delen images are well optimized though.

JavaScript Optimization

-21%

Potential reduce by 70.2 kB

  • Original 338.3 kB
  • After minification 338.3 kB
  • After compression 268.1 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 70.2 kB or 21% of the original size.

CSS Optimization

-3%

Potential reduce by 7.4 kB

  • Original 229.2 kB
  • After minification 229.2 kB
  • After compression 221.8 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. Kennisdelen.org has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 71 (80%)

Requests Now

89

After Optimization

18

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 89 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kennis Delen. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 38 to 1 for JavaScripts and from 35 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

kennisdelen.org 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

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

Links do not have a discernible name

Best Practices

kennisdelen.org best practices score

75

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

kennisdelen.org SEO score

96

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    NL

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kennisdelen.org can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is Dutch. Our system also found out that Kennisdelen.org 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 data is detected on the main page of Kennis Delen. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: