Report Summary

  • 80

    Performance

    Renders faster than
    86% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 92% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

roigroep.nl

ROI Groep - Maximaliseer Uw Rendement op Investeringen

Page Load Speed

3 sec in total

First Response

399 ms

Resources Loaded

2.4 sec

Page Rendered

175 ms

roigroep.nl screenshot

About Website

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

Ontdek de strategieën van ROI Groep voor het maximaliseren van uw rendement op investeringen. Wij zijn uw partner in financieel succes.

Visit roigroep.nl

Key Findings

We analyzed Roigroep.nl page load time and found that the first response time was 399 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

roigroep.nl performance score

80

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.9 s

87/100

10%

LCP (Largest Contentful Paint)

Value4.2 s

45/100

25%

SI (Speed Index)

Value4.3 s

76/100

10%

TBT (Total Blocking Time)

Value130 ms

96/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value4.2 s

85/100

10%

Network Requests Diagram

roigroep.nl

399 ms

roi-global.css

526 ms

groep.css

85 ms

prototype.js

269 ms

scriptaculous.js

169 ms

Our browser made a total of 28 requests to load all elements on the main page. We found that 71% of them (20 requests) were addressed to the original Roigroep.nl, 7% (2 requests) were made to W1655.statistieken.colibri.nl and 7% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (847 ms) belongs to the original domain Roigroep.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 274.2 kB (40%)

Content Size

694.2 kB

After Optimization

420.0 kB

In fact, the total size of Roigroep.nl main page is 694.2 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. 20% of websites need less resources to load. Images take 347.1 kB which makes up the majority of the site volume.

HTML Optimization

-66%

Potential reduce by 4.8 kB

  • Original 7.3 kB
  • After minification 6.9 kB
  • After compression 2.5 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 4.8 kB or 66% of the original size.

Image Optimization

-4%

Potential reduce by 13.0 kB

  • Original 347.1 kB
  • After minification 334.1 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. ROI Groep images are well optimized though.

JavaScript Optimization

-75%

Potential reduce by 239.1 kB

  • Original 318.2 kB
  • After minification 261.8 kB
  • After compression 79.1 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 239.1 kB or 75% of the original size.

CSS Optimization

-80%

Potential reduce by 17.3 kB

  • Original 21.6 kB
  • After minification 17.5 kB
  • After compression 4.2 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. Roigroep.nl needs all CSS files to be minified and compressed as it can save up to 17.3 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (48%)

Requests Now

25

After Optimization

13

The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ROI Groep. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

roigroep.nl accessibility score

97

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.

Best Practices

roigroep.nl best practices score

92

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

SEO Factors

roigroep.nl SEO score

92

Search Engine Optimization Advices

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

Language and Encoding

  • Language Detected

    NL

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Roigroep.nl can be misinterpreted by Google and other search engines. Our service has detected that Dutch is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Roigroep.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

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