Report Summary

  • 52

    Performance

    Renders faster than
    70% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

s5.nl

Vite + Vue

Page Load Speed

2.3 sec in total

First Response

267 ms

Resources Loaded

1.7 sec

Page Rendered

271 ms

s5.nl screenshot

About Website

Visit s5.nl now to see the best up-to-date S 5 content for Netherlands and also check out these interesting facts you probably never knew about s5.nl

S5 MERKwaardige Specialisten is een bedrijf gevestigd in Alkmaar. Met een enthousiaste, digitale no-nonsense benadering gaan ze online uitdagingen aan.

Visit s5.nl

Key Findings

We analyzed S5.nl page load time and found that the first response time was 267 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

s5.nl performance score

52

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

20/100

10%

LCP (Largest Contentful Paint)

Value6.3 s

10/100

25%

SI (Speed Index)

Value8.1 s

21/100

10%

TBT (Total Blocking Time)

Value250 ms

85/100

30%

CLS (Cumulative Layout Shift)

Value0.035

100/100

15%

TTI (Time to Interactive)

Value7.2 s

51/100

10%

Network Requests Diagram

s5.nl

267 ms

www.s5.nl

368 ms

wp-emoji-release.min.js

91 ms

genericons.css

179 ms

main.css

180 ms

Our browser made a total of 40 requests to load all elements on the main page. We found that 90% of them (36 requests) were addressed to the original S5.nl, 5% (2 requests) were made to Google-analytics.com and 3% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (548 ms) belongs to the original domain S5.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 362.5 kB (41%)

Content Size

877.4 kB

After Optimization

514.8 kB

In fact, the total size of S5.nl main page is 877.4 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. 50% of websites need less resources to load. Images take 505.3 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 12.8 kB

  • Original 18.3 kB
  • After minification 18.3 kB
  • After compression 5.5 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 12.8 kB or 70% of the original size.

Image Optimization

-16%

Potential reduce by 83.3 kB

  • Original 505.3 kB
  • After minification 422.0 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, S 5 needs image optimization as it can save up to 83.3 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-68%

Potential reduce by 96.4 kB

  • Original 142.2 kB
  • After minification 137.2 kB
  • After compression 45.7 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 96.4 kB or 68% of the original size.

CSS Optimization

-80%

Potential reduce by 170.1 kB

  • Original 211.7 kB
  • After minification 163.6 kB
  • After compression 41.6 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. S5.nl needs all CSS files to be minified and compressed as it can save up to 170.1 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 16 (48%)

Requests Now

33

After Optimization

17

The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of S 5. 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 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

s5.nl accessibility score

83

Accessibility Issues

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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

s5.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

High

Page has valid source maps

SEO Factors

s5.nl SEO score

92

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

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

    N/A

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise S5.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 S5.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 data is detected on the main page of S 5. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: