Access rdwdata.nl. RDWdata kentekencheck - Alle RDW-gegevens op RDWdata.nl

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

22/100

10%

LCP (Largest Contentful Paint)

Value9.9 s

0/100

25%

SI (Speed Index)

Value10.2 s

9/100

10%

TBT (Total Blocking Time)

Value4,610 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.223

56/100

15%

TTI (Time to Interactive)

Value21.9 s

1/100

10%

rdwdata.nl

352 ms

www.rdwdata.nl

426 ms

www.rdwdata.nl

468 ms

css

54 ms

bootstrap.css

828 ms

Our browser made a total of 39 requests to load all elements on the main page. We found that 74% of them (29 requests) were addressed to the original Rdwdata.nl, 13% (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 (1.5 sec) belongs to the original domain Rdwdata.nl.

Content Size

868.1 kB

After Optimization

402.5 kB

In fact, the total size of Rdwdata.nl main page is 868.1 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. 40% of websites need less resources to load. Javascripts take 321.2 kB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 5.7 kB

Original 8.4 kB
After minification 7.4 kB
After compression 2.7 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 982 B, which is 12% 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 5.7 kB or 68% of the original size.

Image Optimization

-3%

Potential reduce by 7.2 kB

Original 262.2 kB
After minification 254.9 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. RDWdata images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 203.5 kB

Original 321.2 kB
After minification 321.2 kB
After compression 117.7 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 203.5 kB or 63% of the original size.

CSS Optimization

-90%

Potential reduce by 249.2 kB

Original 276.4 kB
After minification 159.8 kB
After compression 27.2 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. Rdwdata.nl needs all CSS files to be minified and compressed as it can save up to 249.2 kB or 90% of the original size.

Requests Now

After Optimization

The browser has sent 30 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 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

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

High

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

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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/).

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:

Report Summary

Performance

Accessibility

Best Practices

SEO

RDWdata kentekencheck - Alle RDW-gegevens op RDWdata.nl

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

rdwdata.nl

www.rdwdata.nl

www.rdwdata.nl

css

bootstrap.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

rdwdata.nl

www.rdwdata.nl

www.rdwdata.nl

css

bootstrap.css

font-awesome.min.css

main.min.js

css

analytics.js

rdw-data.png

bg-big.jpg

kenteken_start.jpg

Kenteken.woff

k3k702ZOKiLJc3WVjuplzInF5uFdDttMLvmWuJdhhgs.ttf

MTP_ySUJH_bn48VBG8sNSonF5uFdDttMLvmWuJdhhgs.ttf

cJZKeOuBrn4kERxqtaUH3aCWcynf_cDxXwCLxiixG1c.ttf

DXI1ORHCpsQm3Vp6mXoaTYnF5uFdDttMLvmWuJdhhgs.ttf

MuseoSans-300-webfont.svg

MuseoSans-100-webfont.svg

MuseoSans-700-webfont.svg

MuseoSans-900-webfont.svg

MuseoSans-900.svg

MuseoSans-300Italic.svg

MuseoSans-500Italic.svg

MuseoSans-700Italic.svg

MuseoSans-900Italic.svg

xjAJXh38I15wypJXxuGMBp0EAVxt0G0biEntp43Qt6E.ttf

fontawesome-webfont.woff

collect

collect

MuseoSans-100-webfont.woff

MuseoSans-300-webfont.woff

MuseoSans-700-webfont.woff

MuseoSans-900-webfont.woff

MuseoSans-900.woff

MuseoSans-300Italic.woff

MuseoSans-500Italic.woff

MuseoSans-700Italic.woff

MuseoSans-900Italic.woff

Accessibility Review

Accessibility Issues

Best Practices

Areas of Improvement