Report Summary

  • 86

    Performance

    Renders faster than
    89% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

roteg.nl

Roteg Racing - AIM datalogger, laptimer, Dynoteg vermogen testbank, Sportdevices, Dynomite, testbank, software, Capit bandenwarmers, Wildkart kartonde...

Page Load Speed

3.6 sec in total

First Response

275 ms

Resources Loaded

3 sec

Page Rendered

246 ms

roteg.nl screenshot

About Website

Welcome to roteg.nl homepage info - get ready to check Roteg best content right away, or after learning these important things about roteg.nl

Experts in datalogging, laptiming, vermogenstestbanken

Visit roteg.nl

Key Findings

We analyzed Roteg.nl page load time and found that the first response time was 275 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 55% of websites can load faster.

Performance Metrics

roteg.nl performance score

86

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

47/100

10%

LCP (Largest Contentful Paint)

Value3.1 s

75/100

25%

SI (Speed Index)

Value3.8 s

83/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.027

100/100

15%

TTI (Time to Interactive)

Value3.1 s

95/100

10%

Network Requests Diagram

roteg.nl

275 ms

www.roteg.nl

418 ms

stylesheet.css

176 ms

lightbox.css

175 ms

header.css

178 ms

Our browser made a total of 65 requests to load all elements on the main page. We found that 89% of them (58 requests) were addressed to the original Roteg.nl, 5% (3 requests) were made to S7.addthis.com and 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Roteg.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 635.5 kB (48%)

Content Size

1.3 MB

After Optimization

679.4 kB

In fact, the total size of Roteg.nl main page is 1.3 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. 35% of websites need less resources to load. Javascripts take 668.2 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 60.0 kB

  • Original 79.4 kB
  • After minification 75.5 kB
  • After compression 19.4 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 60.0 kB or 76% of the original size.

Image Optimization

-17%

Potential reduce by 91.0 kB

  • Original 537.9 kB
  • After minification 446.9 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, Roteg needs image optimization as it can save up to 91.0 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-69%

Potential reduce by 459.3 kB

  • Original 668.2 kB
  • After minification 606.2 kB
  • After compression 208.9 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 459.3 kB or 69% of the original size.

CSS Optimization

-86%

Potential reduce by 25.2 kB

  • Original 29.5 kB
  • After minification 18.0 kB
  • After compression 4.3 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. Roteg.nl needs all CSS files to be minified and compressed as it can save up to 25.2 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 28 (45%)

Requests Now

62

After Optimization

34

The browser has sent 62 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Roteg. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

roteg.nl accessibility score

68

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.

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

Form elements do not have associated labels

Best Practices

roteg.nl best practices score

58

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

High

Browser errors were logged to the console

SEO Factors

roteg.nl SEO score

62

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

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

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    EN

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Roteg.nl can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is English. Our system also found out that Roteg.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 Roteg. 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: