Tools & Wizards About Us

Report Summary

  • 43

    Performance

    Renders faster than
    62% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

karts.nl

Karts.nl, alles over karting: kartbanen, kartnieuws, kartkalender, kartlinks en meer!

Page Load Speed

3.7 sec in total

First Response

366 ms

Resources Loaded

3.1 sec

Page Rendered

173 ms

About Website

Welcome to karts.nl homepage info - get ready to check Karts best content for Netherlands right away, or after learning these important things about karts.nl

Alles over karting: van een overzicht van kartbanen tot een kartkalender en van een kartwoordenboek tot een uitgebreid linksoverzicht.

Visit karts.nl

Key Findings

We analyzed Karts.nl page load time and found that the first response time was 366 ms and then it took 3.3 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

karts.nl performance score

43

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

75/100

10%

LCP (Largest Contentful Paint)

Value5.1 s

26/100

25%

SI (Speed Index)

Value4.7 s

69/100

10%

TBT (Total Blocking Time)

Value1,590 ms

12/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value8.5 s

38/100

10%

Network Requests Diagram

karts.nl

366 ms

www.karts.nl

683 ms

screen.css

162 ms

logoprint.gif

236 ms

logo.gif

235 ms

Our browser made a total of 58 requests to load all elements on the main page. We found that 55% of them (32 requests) were addressed to the original Karts.nl, 10% (6 requests) were made to Tpc.googlesyndication.com and 9% (5 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (683 ms) belongs to the original domain Karts.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 21.8 kB (6%)

Content Size

346.3 kB

After Optimization

324.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Karts.nl main page is 346.3 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. 50% of websites need less resources to load. Images take 222.9 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 16.5 kB

  • Original 22.4 kB
  • After minification 22.4 kB
  • After compression 5.9 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 16.5 kB or 74% of the original size.

Image Optimization

-2%

Potential reduce by 3.9 kB

  • Original 222.9 kB
  • After minification 219.1 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. Karts images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 1.3 kB

  • Original 97.5 kB
  • After minification 97.5 kB
  • After compression 96.2 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.

CSS Optimization

-1%

Potential reduce by 22 B

  • Original 3.4 kB
  • After minification 3.4 kB
  • After compression 3.4 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. Karts.nl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 22 (41%)

Requests Now

54

After Optimization

32

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Karts. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

karts.nl accessibility score

79

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

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

karts.nl best practices score

75

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

Serves images with low resolution

General

Impact

Issue

High

Page has valid source maps

SEO Factors

karts.nl SEO score

77

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    NL

  • Language Claimed

    NL

  • Encoding

    ISO-8859-1

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

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