Tools & Wizards About Us
koopjesboom.nl screenshot

Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 64

    SEO

    Google-friendlier than
    24% of websites

koopjesboom.nl

KBmodelcars Modelcar store The road to your Collection - KBmodelcars

Page Load Speed

4.1 sec in total

First Response

565 ms

Resources Loaded

3 sec

Page Rendered

538 ms

koopjesboom.nl screenshot

About Website

Click here to check amazing Koopjesboom content. Otherwise, check out these important facts you probably never knew about koopjesboom.nl

KBmodelcars voor de Modelauto verzamelaar. Wij hebben Modelautos Accessoires en andere gerelateerde artikelen. We kopen Collecties en verzamelingen in

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Key Findings

We analyzed Koopjesboom.nl page load time and found that the first response time was 565 ms and then it took 3.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

koopjesboom.nl performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

28/100

10%

LCP (Largest Contentful Paint)

Value5.7 s

17/100

25%

SI (Speed Index)

Value5.4 s

57/100

10%

TBT (Total Blocking Time)

Value730 ms

41/100

30%

CLS (Cumulative Layout Shift)

Value0.446

20/100

15%

TTI (Time to Interactive)

Value8.0 s

42/100

10%

Network Requests Diagram

koopjesboom.nl

565 ms

7d11a652b1b7c01b6ebbf81d5400b459.css

343 ms

f7e9d602d93233a2b2d0c92abfa48842.min.js

694 ms

css

25 ms

gtm.js

75 ms

Our browser made a total of 48 requests to load all elements on the main page. We found that 75% of them (36 requests) were addressed to the original Koopjesboom.nl, 8% (4 requests) were made to Google-analytics.com and 6% (3 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Koopjesboom.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 208.4 kB (18%)

Content Size

1.2 MB

After Optimization

966.5 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Koopjesboom.nl main page is 1.2 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 982.9 kB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 153.6 kB

  • Original 169.7 kB
  • After minification 113.9 kB
  • After compression 16.1 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 55.9 kB, which is 33% 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 153.6 kB or 90% of the original size.

Image Optimization

-6%

Potential reduce by 54.8 kB

  • Original 982.9 kB
  • After minification 928.1 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. Koopjesboom images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 75 B

  • Original 22.3 kB
  • After minification 22.3 kB
  • After compression 22.2 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. This website has mostly compressed JavaScripts.

Requests Breakdown

Number of requests can be reduced by 3 (8%)

Requests Now

40

After Optimization

37

  • Images
  • JavaScript
  • CSS

The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Koopjesboom. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

koopjesboom.nl

koopjesboom.nl

565 ms

7d11a652b1b7c01b6ebbf81d5400b459.css

7d11a652b1b7c01b6ebbf81d5400b459.css

343 ms

f7e9d602d93233a2b2d0c92abfa48842.min.js

f7e9d602d93233a2b2d0c92abfa48842.min.js

694 ms

css

css

25 ms

gtm.js

gtm.js

75 ms

analytics.js

analytics.js

18 ms

gtm.js

gtm.js

62 ms

koopjesboom.nl_logo_2.png

koopjesboom.nl_logo_2.png

223 ms

koopjesboom.nl_logo_2.png

koopjesboom.nl_logo_2.png

241 ms

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website_logo_definitief_Custom_.jpg

410 ms

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305 ms

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335 ms

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331 ms

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504 ms

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517 ms

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637 ms

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668 ms

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613 ms

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686 ms

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799 ms

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795 ms

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870 ms

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898 ms

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947 ms

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943 ms

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1050 ms

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1140 ms

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1211 ms

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1171 ms

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1120 ms

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1223 ms

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1392 ms

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1390 ms

1306235.jpg

1306235.jpg

1435 ms

koopjesboom.nl_logo_2.png

koopjesboom.nl_logo_2.png

1375 ms

collect

collect

23 ms

MTP_ySUJH_bn48VBG8sNSnhCUOGz7vYGh680lGh-uXM.woff

MTP_ySUJH_bn48VBG8sNSnhCUOGz7vYGh680lGh-uXM.woff

9 ms

k3k702ZOKiLJc3WVjuplzHhCUOGz7vYGh680lGh-uXM.woff

k3k702ZOKiLJc3WVjuplzHhCUOGz7vYGh680lGh-uXM.woff

20 ms

cJZKeOuBrn4kERxqtaUH3T8E0i7KZn-EPnyo3HZu7kw.woff

cJZKeOuBrn4kERxqtaUH3T8E0i7KZn-EPnyo3HZu7kw.woff

20 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

1591 ms

collect

collect

145 ms

ec.js

ec.js

5 ms

collect

collect

105 ms

1306204.jpg

1306204.jpg

1196 ms

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1306236_4_.jpg

1356 ms

2013010919.jpg

2013010919.jpg

1464 ms

AjaxLoader.gif

AjaxLoader.gif

1371 ms

collect

collect

11 ms

Accessibility Review

koopjesboom.nl accessibility score

80

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.

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 IDs are not unique

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

Low

No form fields have multiple labels

High

Links do not have a discernible name

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

koopjesboom.nl best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

koopjesboom.nl SEO score

64

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

Language and Encoding

  • Language Detected

    NL

  • Language Claimed

    NL

  • Encoding

    TEXT/HTML; CHARSET=UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Koopjesboom.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 Koopjesboom.nl main page’s claimed encoding is text/html; charset=utf-8. 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

koopjesboom.nl

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