Tools & Wizards About Us
rdwdata.nl screenshot

Report Summary

  • 29

    Performance

    Renders faster than
    49% of other websites

  • 53

    Accessibility

    Visual factors better than
    that of 22% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

rdwdata.nl

RDWdata kentekencheck - Alle RDW-gegevens op RDWdata.nl

Page Load Speed

3.3 sec in total

First Response

368 ms

Resources Loaded

2.8 sec

Page Rendered

136 ms

rdwdata.nl screenshot

About Website

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

RDW informatie nodig? RDWdata.nl is de grootste voertuigendatabase van Nederland met RDW data van miljoenen auto's'

Visit rdwdata.nl

Key Findings

We analyzed Rdwdata.nl page load time and found that the first response time was 368 ms and then it took 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

rdwdata.nl performance score

29

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

20/100

10%

LCP (Largest Contentful Paint)

Value9.7 s

0/100

25%

SI (Speed Index)

Value5.1 s

62/100

10%

TBT (Total Blocking Time)

Value810 ms

36/100

30%

CLS (Cumulative Layout Shift)

Value0.223

56/100

15%

TTI (Time to Interactive)

Value12.2 s

15/100

10%

Network Requests Diagram

rdwdata.nl

368 ms

www.rdwdata.nl

511 ms

www.rdwdata.nl

404 ms

css

39 ms

bootstrap.min.css

185 ms

Our browser made a total of 43 requests to load all elements on the main page. We found that 72% of them (31 requests) were addressed to the original Rdwdata.nl, 12% (5 requests) were made to Fonts.gstatic.com and 5% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (804 ms) belongs to the original domain Rdwdata.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 25.6 kB (6%)

Content Size

440.8 kB

After Optimization

415.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rdwdata.nl main page is 440.8 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. 55% of websites need less resources to load. Images take 262.2 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 15.9 kB

  • Original 20.7 kB
  • After minification 15.4 kB
  • After compression 4.8 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 5.3 kB, which is 26% 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 15.9 kB or 77% of the original size.

Image Optimization

-4%

Potential reduce by 9.5 kB

  • Original 262.2 kB
  • After minification 252.6 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. RDWdata images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 98 B

  • Original 121.3 kB
  • After minification 121.3 kB
  • After compression 121.2 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

-0%

Potential reduce by 89 B

  • Original 36.6 kB
  • After minification 36.6 kB
  • After compression 36.5 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. Rdwdata.nl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 7 (35%)

Requests Now

20

After Optimization

13

  • Images
  • JavaScript
  • CSS

The browser has sent 20 CSS, Javascripts, AJAX and image requests in order to completely render the main page of RDWdata. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

rdwdata.nl

rdwdata.nl

368 ms

www.rdwdata.nl

www.rdwdata.nl

511 ms

www.rdwdata.nl

www.rdwdata.nl

404 ms

css

css

39 ms

bootstrap.min.css

bootstrap.min.css

185 ms

font-awesome.min.css

font-awesome.min.css

264 ms

main.min.js

main.min.js

489 ms

conversion.js

conversion.js

92 ms

client.js

client.js

117 ms

css

css

17 ms

gtm.js

gtm.js

163 ms

127 ms

rdw-data.png

rdw-data.png

101 ms

bg-big.jpg

bg-big.jpg

355 ms

kenteken_start.jpg

kenteken_start.jpg

177 ms

Kenteken.woff

Kenteken.woff

90 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

25 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVc.ttf

25 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

30 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVc.ttf

30 ms

MuseoSans-700-webfont.svg

MuseoSans-700-webfont.svg

265 ms

MuseoSans-900-webfont.svg

MuseoSans-900-webfont.svg

436 ms

MuseoSans-900.svg

MuseoSans-900.svg

274 ms

MuseoSans-300-webfont.svg

MuseoSans-300-webfont.svg

446 ms

MuseoSans-100-webfont.svg

MuseoSans-100-webfont.svg

469 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

353 ms

MuseoSans-300Italic.svg

MuseoSans-300Italic.svg

361 ms

MuseoSans-500Italic.svg

MuseoSans-500Italic.svg

445 ms

MuseoSans-700Italic.svg

MuseoSans-700Italic.svg

537 ms

MuseoSans-900Italic.svg

MuseoSans-900Italic.svg

804 ms

memQYaGs126MiZpBA-UFUIcVXSCEkx2cmqvXlWq8tWZ0Pw86hd0Rk8ZkWVAexQ.ttf

memQYaGs126MiZpBA-UFUIcVXSCEkx2cmqvXlWq8tWZ0Pw86hd0Rk8ZkWVAexQ.ttf

27 ms

49 ms

MuseoSans-700-webfont.woff

MuseoSans-700-webfont.woff

251 ms

MuseoSans-900.woff

MuseoSans-900.woff

260 ms

MuseoSans-300Italic.woff

MuseoSans-300Italic.woff

174 ms

MuseoSans-900-webfont.woff

MuseoSans-900-webfont.woff

97 ms

MuseoSans-300-webfont.woff

MuseoSans-300-webfont.woff

145 ms

MuseoSans-500Italic.woff

MuseoSans-500Italic.woff

155 ms

MuseoSans-100-webfont.woff

MuseoSans-100-webfont.woff

142 ms

MuseoSans-900.ttf

MuseoSans-900.ttf

95 ms

MuseoSans-300Italic.ttf

MuseoSans-300Italic.ttf

92 ms

MuseoSans-700Italic.woff

MuseoSans-700Italic.woff

134 ms

MuseoSans-900Italic.woff

MuseoSans-900Italic.woff

93 ms

Accessibility Review

rdwdata.nl accessibility score

53

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

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

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

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

rdwdata.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

rdwdata.nl SEO score

93

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

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 Rdwdata.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 Rdwdata.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

rdwdata.nl

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