Tools & Wizards About Us
koosalberts.nl screenshot

Report Summary

  • 42

    Performance

    Renders faster than
    61% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

koosalberts.nl

Het nieuwe ontroerende verhaal van Koos Alberts - De kracht van Liefde

Page Load Speed

1.6 sec in total

First Response

368 ms

Resources Loaded

1.1 sec

Page Rendered

184 ms

koosalberts.nl screenshot

About Website

Click here to check amazing Koos Alberts content. Otherwise, check out these important facts you probably never knew about koosalberts.nl

De kracht van liefde, het nieuwe boek over Koos Alberts en zijn gezin ontroert en raakt je in je hart.Geschreven door dochter Christa Krommenhoek.

Visit koosalberts.nl

Key Findings

We analyzed Koosalberts.nl page load time and found that the first response time was 368 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

koosalberts.nl performance score

42

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value9.5 s

0/100

25%

SI (Speed Index)

Value7.4 s

28/100

10%

TBT (Total Blocking Time)

Value130 ms

96/100

30%

CLS (Cumulative Layout Shift)

Value0.616

10/100

15%

TTI (Time to Interactive)

Value6.3 s

61/100

10%

Network Requests Diagram

koosalberts.nl

368 ms

top.html

91 ms

topright.html

175 ms

menu.html

264 ms

main.html

351 ms

Our browser made a total of 19 requests to load all elements on the main page. We found that 95% of them (18 requests) were addressed to the original Koosalberts.nl, 5% (1 request) were made to M1.nedstatbasic.net. The less responsive or slowest element that took the longest time to load (463 ms) relates to the external source M1.nedstatbasic.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 20.1 kB (14%)

Content Size

143.8 kB

After Optimization

123.7 kB

  • HTML
  • Images

In fact, the total size of Koosalberts.nl main page is 143.8 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. Only 10% of websites need less resources to load. Images take 139.8 kB which makes up the majority of the site volume.

HTML Optimization

-66%

Potential reduce by 2.6 kB

  • Original 4.0 kB
  • After minification 3.9 kB
  • After compression 1.4 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. 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 2.6 kB or 66% of the original size.

Image Optimization

-12%

Potential reduce by 17.5 kB

  • Original 139.8 kB
  • After minification 122.4 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, Koos Alberts needs image optimization as it can save up to 17.5 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

Requests Breakdown

We found no issues to fix!

Requests Now

18

After Optimization

18

  • AJAX
  • Images

The browser has sent 18 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Koos Alberts. According to our analytics all requests are already optimized.

Network Requests Diagram

koosalberts.nl

koosalberts.nl

368 ms

top.html

top.html

91 ms

topright.html

topright.html

175 ms

menu.html

menu.html

264 ms

main.html

main.html

351 ms

rightframe.html

rightframe.html

175 ms

logokoos1.jpg

logokoos1.jpg

200 ms

top.jpg

top.jpg

432 ms

image001.jpg

image001.jpg

109 ms

n

n

463 ms

fowelogo.jpg

fowelogo.jpg

95 ms

handtekening2.gif

handtekening2.gif

264 ms

Front30jaar.jpg

Front30jaar.jpg

441 ms

sunrise10-08.jpg

sunrise10-08.jpg

262 ms

logo.XL.gif

logo.XL.gif

157 ms

artiestenbureau.jpg

artiestenbureau.jpg

164 ms

Tju_1781.jpg

Tju_1781.jpg

335 ms

koendesmet.jpg

koendesmet.jpg

428 ms

Koos%20Alberts%20(FRONT)kl.jpg

Koos%20Alberts%20(FRONT)kl.jpg

350 ms

Accessibility Review

koosalberts.nl accessibility score

80

Accessibility Issues

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

koosalberts.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

koosalberts.nl 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

    DU

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Koosalberts.nl can be misinterpreted by Google and other search engines. Our service has detected that Dutch is used on the page, and it does not match the claimed language. Our system also found out that Koosalberts.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

koosalberts.nl

Open Graph description is not detected on the main page of Koos Alberts. 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: