Tools & Wizards About Us
supercarchallenge.nl screenshot

Report Summary

  • 39

    Performance

    Renders faster than
    58% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 66% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

supercarchallenge.nl

Homepage - Supercar Challenge

Page Load Speed

6.7 sec in total

First Response

32 ms

Resources Loaded

5.8 sec

Page Rendered

819 ms

supercarchallenge.nl screenshot

About Website

Welcome to supercarchallenge.nl homepage info - get ready to check Supercar Challenge best content for Luxembourg right away, or after learning these important things about supercarchallenge.nl

Het is een gouden formule gebleken, de Dutch Supercar Challenge. Een combinatie van professionals, semi-pro’s en gentleman-drivers in supersnelle GT’s en toerwagens, in semi-endurance races,...

Visit supercarchallenge.nl

Key Findings

We analyzed Supercarchallenge.nl page load time and found that the first response time was 32 ms and then it took 6.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

supercarchallenge.nl performance score

39

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

51/100

10%

LCP (Largest Contentful Paint)

Value19.3 s

0/100

25%

SI (Speed Index)

Value12.8 s

3/100

10%

TBT (Total Blocking Time)

Value500 ms

58/100

30%

CLS (Cumulative Layout Shift)

Value0.011

100/100

15%

TTI (Time to Interactive)

Value13.0 s

12/100

10%

Network Requests Diagram

supercarchallenge.nl

32 ms

supercarchallenge.nl

307 ms

www.supercarchallenge.nl

1016 ms

normalize.css

286 ms

webflow.css

303 ms

Our browser made a total of 105 requests to load all elements on the main page. We found that 87% of them (91 requests) were addressed to the original Supercarchallenge.nl, 10% (10 requests) were made to I.ytimg.com and 1% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (3.1 sec) belongs to the original domain Supercarchallenge.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 390.8 kB (9%)

Content Size

4.3 MB

After Optimization

3.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Supercarchallenge.nl main page is 4.3 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. 65% of websites need less resources to load. Images take 4.1 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 67.5 kB

  • Original 78.8 kB
  • After minification 78.7 kB
  • After compression 11.3 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. 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 67.5 kB or 86% of the original size.

Image Optimization

-8%

Potential reduce by 320.6 kB

  • Original 4.1 MB
  • After minification 3.8 MB

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. Supercar Challenge images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 188 B

  • Original 109.8 kB
  • After minification 109.8 kB
  • After compression 109.6 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

-8%

Potential reduce by 2.5 kB

  • Original 29.2 kB
  • After minification 29.2 kB
  • After compression 26.8 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. Supercarchallenge.nl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 11 (12%)

Requests Now

94

After Optimization

83

  • Images
  • JavaScript
  • CSS

The browser has sent 94 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Supercar Challenge. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

supercarchallenge.nl

supercarchallenge.nl

32 ms

supercarchallenge.nl

supercarchallenge.nl

307 ms

www.supercarchallenge.nl

www.supercarchallenge.nl

1016 ms

normalize.css

normalize.css

286 ms

webflow.css

webflow.css

303 ms

basic-layout.css

basic-layout.css

32 ms

custom.css

custom.css

296 ms

supercar.css

supercar.css

26 ms

jquery.min.js

jquery.min.js

407 ms

css2

css2

35 ms

js

js

61 ms

email-decode.min.js

email-decode.min.js

28 ms

countController.js

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42 ms

modernizr.js

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292 ms

webflow.js

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60 ms

mqdefault.jpg

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296 ms

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139 ms

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141 ms

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289 ms

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332 ms

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6 ms

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1953 ms

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313 ms

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1951 ms

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175 ms

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1793 ms

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1775 ms

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604 ms

Akrobat-Black.otf

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2763 ms

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2464 ms

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2443 ms

ooperon.svg

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2411 ms

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2843 ms

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3028 ms

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colle.svg

3087 ms

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2293 ms

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2288 ms

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social-youtube.svg

2278 ms

Accessibility Review

supercarchallenge.nl accessibility score

87

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

supercarchallenge.nl 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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

supercarchallenge.nl SEO score

91

Search Engine Optimization Advices

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

    EN

  • Language Claimed

    NL

  • Encoding

    UTF-8

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

supercarchallenge.nl

Open Graph data is detected on the main page of Supercar Challenge. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: