Tools & Wizards About Us
koppen.com screenshot

Report Summary

  • 30

    Performance

    Renders faster than
    50% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 78

    SEO

    Google-friendlier than
    39% of websites

koppen.com

Koppen Speelgoed - Dé speelgoedgroothandel voor iedereen! - Koppen Speelgoed

Page Load Speed

2.9 sec in total

First Response

433 ms

Resources Loaded

2.3 sec

Page Rendered

185 ms

koppen.com screenshot

About Website

Click here to check amazing Koppen content for Netherlands. Otherwise, check out these important facts you probably never knew about koppen.com

Koppen.com is dé groothandel voor speelgoed voor iedereen. Zit je in het onderwijs, de horeca, in een vereniging of ben je particulier? Wij hebben leuk speelgoed dat bij ieder budget past!

Visit koppen.com

Key Findings

We analyzed Koppen.com page load time and found that the first response time was 433 ms and then it took 2.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

koppen.com performance score

30

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

39/100

10%

LCP (Largest Contentful Paint)

Value10.7 s

0/100

25%

SI (Speed Index)

Value8.9 s

15/100

10%

TBT (Total Blocking Time)

Value960 ms

29/100

30%

CLS (Cumulative Layout Shift)

Value0.02

100/100

15%

TTI (Time to Interactive)

Value13.1 s

12/100

10%

Network Requests Diagram

koppen.com

433 ms

www.koppen.com

702 ms

DXR.axd

249 ms

jquery-latest.js

505 ms

jquery.watermark.min-latest.js

264 ms

Our browser made a total of 57 requests to load all elements on the main page. We found that 86% of them (49 requests) were addressed to the original Koppen.com, 4% (2 requests) were made to Dev.visualwebsiteoptimizer.com and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (702 ms) belongs to the original domain Koppen.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 961.4 kB (54%)

Content Size

1.8 MB

After Optimization

818.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Koppen.com main page is 1.8 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. 35% of websites need less resources to load. Javascripts take 886.4 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 48.8 kB

  • Original 67.1 kB
  • After minification 57.5 kB
  • After compression 18.3 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 9.6 kB, which is 14% 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 48.8 kB or 73% of the original size.

Image Optimization

-9%

Potential reduce by 55.7 kB

  • Original 639.9 kB
  • After minification 584.2 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. Koppen images are well optimized though.

JavaScript Optimization

-79%

Potential reduce by 696.1 kB

  • Original 886.4 kB
  • After minification 641.8 kB
  • After compression 190.3 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 696.1 kB or 79% of the original size.

CSS Optimization

-86%

Potential reduce by 160.8 kB

  • Original 186.7 kB
  • After minification 147.0 kB
  • After compression 26.0 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. Koppen.com needs all CSS files to be minified and compressed as it can save up to 160.8 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (40%)

Requests Now

52

After Optimization

31

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Koppen. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

koppen.com

koppen.com

433 ms

www.koppen.com

www.koppen.com

702 ms

DXR.axd

DXR.axd

249 ms

jquery-latest.js

jquery-latest.js

505 ms

jquery.watermark.min-latest.js

jquery.watermark.min-latest.js

264 ms

GeneralCMS.js

GeneralCMS.js

298 ms

GeneralCMS.css

GeneralCMS.css

188 ms

custom.min.js

custom.min.js

585 ms

screen.min.css

screen.min.css

523 ms

cookies.js

cookies.js

363 ms

browserDetect.js

browserDetect.js

372 ms

browserDetect.css

browserDetect.css

406 ms

WebResource.axd

WebResource.axd

454 ms

WebResource.axd

WebResource.axd

390 ms

ScriptResource.axd

ScriptResource.axd

425 ms

ScriptResource.axd

ScriptResource.axd

638 ms

ScriptResource.axd

ScriptResource.axd

561 ms

DXR.axd

DXR.axd

601 ms

DXR.axd

DXR.axd

535 ms

conversion.js

conversion.js

14 ms

DXR.axd

DXR.axd

87 ms

banner-kinderen-met-speelgoed.png

banner-kinderen-met-speelgoed.png

532 ms

91216.png

91216.png

361 ms

Ideal%20PNG%20klein.png

Ideal%20PNG%20klein.png

177 ms

mrcash.jpg

mrcash.jpg

177 ms

creditcard.jpg

creditcard.jpg

215 ms

FISHER%20PRICE.png

FISHER%20PRICE.png

216 ms

PLAYMOBIL.png

PLAYMOBIL.png

269 ms

GOLIATH.png

GOLIATH.png

252 ms

IDENTITY%20GAMES.png

IDENTITY%20GAMES.png

278 ms

JUMBO.png

JUMBO.png

294 ms

LEGO.png

LEGO.png

359 ms

MATTEL.png

MATTEL.png

367 ms

MB.png

MB.png

368 ms

MEGA%20BLOKS.png

MEGA%20BLOKS.png

381 ms

RAVENSBURGER.png

RAVENSBURGER.png

444 ms

SES.png

SES.png

457 ms

VTECH.png

VTECH.png

487 ms

73 ms

screen.min.css

screen.min.css

334 ms

general.png

general.png

336 ms

scholen.jpg

scholen.jpg

399 ms

particulieren.jpg

particulieren.jpg

417 ms

horeca.jpg

horeca.jpg

447 ms

icecreammugs.jpg

icecreammugs.jpg

456 ms

li.png

li.png

411 ms

socialbig.png

socialbig.png

468 ms

logo.png

logo.png

480 ms

CoconOT-Regular.ttf

CoconOT-Regular.ttf

521 ms

j.php

j.php

42 ms

ga.js

ga.js

38 ms

GeneralCMSHTML5.css

GeneralCMSHTML5.css

475 ms

55 ms

__utm.gif

__utm.gif

15 ms

v.gif

v.gif

5 ms

collect

collect

57 ms

validatorupdatedisplaydiv.js

validatorupdatedisplaydiv.js

88 ms

Accessibility Review

koppen.com accessibility score

90

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

button, link, and menuitem elements do not have accessible names.

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

Image elements do not have [alt] attributes

Best Practices

koppen.com 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

koppen.com SEO score

78

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

High

robots.txt is not valid

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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

    NL

  • Language Claimed

    NL

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Koppen.com 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 Koppen.com 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

koppen.com

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