Tools & Wizards About Us
roossien.nl screenshot

Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 51% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

roossien.nl

Roossien — Industriële klimmaterialen — Roossien.nl

Page Load Speed

3.7 sec in total

First Response

556 ms

Resources Loaded

3 sec

Page Rendered

176 ms

roossien.nl screenshot

About Website

Visit roossien.nl now to see the best up-to-date Roossien content and also check out these interesting facts you probably never knew about roossien.nl

Roossien is totaalleverancier en producent op het gebied van industriële klimmaterialen. Wij creëren veilige werkplekken op hoogte.

Visit roossien.nl

Key Findings

We analyzed Roossien.nl page load time and found that the first response time was 556 ms and then it took 3.1 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

roossien.nl performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

35/100

10%

LCP (Largest Contentful Paint)

Value12.9 s

0/100

25%

SI (Speed Index)

Value13.2 s

2/100

10%

TBT (Total Blocking Time)

Value2,380 ms

5/100

30%

CLS (Cumulative Layout Shift)

Value0.112

86/100

15%

TTI (Time to Interactive)

Value22.4 s

1/100

10%

Network Requests Diagram

roossien.nl

556 ms

www.roossien.nl

749 ms

Neutraal.css

520 ms

require.js

97 ms

analytics.js

39 ms

Our browser made a total of 31 requests to load all elements on the main page. We found that 90% of them (28 requests) were addressed to the original Roossien.nl, 6% (2 requests) were made to Google-analytics.com and 3% (1 request) were made to Stats.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Roossien.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (33%)

Content Size

3.5 MB

After Optimization

2.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Roossien.nl main page is 3.5 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. 50% of websites need less resources to load. Images take 2.4 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 122.8 kB

  • Original 143.2 kB
  • After minification 142.8 kB
  • After compression 20.3 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 122.8 kB or 86% of the original size.

Image Optimization

-11%

Potential reduce by 253.3 kB

  • Original 2.4 MB
  • After minification 2.1 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. Obviously, Roossien needs image optimization as it can save up to 253.3 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-76%

Potential reduce by 543.5 kB

  • Original 713.9 kB
  • After minification 661.3 kB
  • After compression 170.4 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 543.5 kB or 76% of the original size.

CSS Optimization

-88%

Potential reduce by 229.2 kB

  • Original 261.1 kB
  • After minification 251.3 kB
  • After compression 31.9 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. Roossien.nl needs all CSS files to be minified and compressed as it can save up to 229.2 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (29%)

Requests Now

28

After Optimization

20

  • Images
  • JavaScript
  • CSS

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Roossien. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

roossien.nl

roossien.nl

556 ms

www.roossien.nl

www.roossien.nl

749 ms

Neutraal.css

Neutraal.css

520 ms

require.js

require.js

97 ms

analytics.js

analytics.js

39 ms

banner_5Fadded-5.png

banner_5Fadded-5.png

274 ms

banner_5Fadded-4.png

banner_5Fadded-4.png

100 ms

email.png

email.png

171 ms

toepassingen-maatwerk300x250.png

toepassingen-maatwerk300x250.png

690 ms

producten-standaardproducten2.png

producten-standaardproducten2.png

741 ms

diensten-diensten300x250.png

diensten-diensten300x250.png

723 ms

producten-configurator.png

producten-configurator.png

287 ms

kooiladders-kooiladders.jpg

kooiladders-kooiladders.jpg

659 ms

valbeveiliging-valbeveiliging.jpg

valbeveiliging-valbeveiliging.jpg

449 ms

gebouwen-en-daken-kooiladder.jpg

gebouwen-en-daken-kooiladder.jpg

463 ms

voedingsindustrie-rooster.jpg

voedingsindustrie-rooster.jpg

626 ms

energie-en-chemie-leuningwerk.jpg

energie-en-chemie-leuningwerk.jpg

636 ms

havens-en-scheepvaart-ship%20escaper.jpg

havens-en-scheepvaart-ship%20escaper.jpg

718 ms

treinen-bussen-en-remises-werkbordes.jpg

treinen-bussen-en-remises-werkbordes.jpg

728 ms

luchtvaart-en-hangars-vliegtuigtrap.jpg

luchtvaart-en-hangars-vliegtuigtrap.jpg

1239 ms

vracht-en-bedrijfswagens-tankwagenladder.jpg

vracht-en-bedrijfswagens-tankwagenladder.jpg

860 ms

actiefolder_5F325.png

actiefolder_5F325.png

809 ms

collect

collect

12 ms

bootstrapper.js

bootstrapper.js

773 ms

collect

collect

67 ms

anta-core.js

anta-core.js

235 ms

es6-promise.js

es6-promise.js

95 ms

jquery.js

jquery.js

130 ms

maquette-polyfills.js

maquette-polyfills.js

99 ms

maquette.js

maquette.js

91 ms

jquery.autosize.js

jquery.autosize.js

97 ms

Accessibility Review

roossien.nl accessibility score

81

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

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

roossien.nl best practices score

75

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

roossien.nl SEO score

84

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

Links do not have descriptive text

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

    NL

  • Language Claimed

    NL

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Roossien.nl can be misinterpreted by Google and other search engines. Our service has detected that Dutch is used on the page, and it matches the claimed language. Our system also found out that Roossien.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

roossien.nl

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