Access nucleus.be. Hosting nodig? Je website altijd veilig online

name

value

score

weighting

FCP (First Contentful Paint)

Value7.4 s

1/100

10%

LCP (Largest Contentful Paint)

Value9.5 s

0/100

25%

SI (Speed Index)

Value12.9 s

2/100

10%

TBT (Total Blocking Time)

Value5,730 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value24.1 s

0/100

10%

nucleus.be

278 ms

942 ms

css.eaa9de68.css

367 ms

runtime.8d843e9d.js

224 ms

9755.c964f554.js

417 ms

Our browser made a total of 73 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Nucleus.be, 88% (64 requests) were made to Combell.com and 3% (2 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Combell.com.

Content Size

4.3 MB

After Optimization

3.3 MB

In fact, the total size of Nucleus.be main page is 4.3 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. 60% of websites need less resources to load. Images take 3.2 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 619.8 kB

Original 709.6 kB
After minification 521.9 kB
After compression 89.8 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 187.7 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 619.8 kB or 87% of the original size.

Image Optimization

-10%

Potential reduce by 311.0 kB

Original 3.2 MB
After minification 2.9 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. Nucleus images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 1.6 kB

Original 264.2 kB
After minification 264.2 kB
After compression 262.6 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 103 B

Original 66.5 kB
After minification 66.5 kB
After compression 66.4 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. Nucleus.be has all CSS files already compressed.

Requests Now

After Optimization

The browser has sent 69 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nucleus. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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 keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

These items highlight common accessibility best practices.

High

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

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Page has valid source maps

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

NL
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nucleus.be 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 Nucleus.be 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

nucleus.be

Open Graph data is detected on the main page of Nucleus. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook:

Report Summary

Performance

Accessibility

Best Practices

SEO

Hosting nodig? Je website altijd veilig online » Combell België

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

nucleus.be

css.eaa9de68.css

runtime.8d843e9d.js

9755.c964f554.js

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

nucleus.be

css.eaa9de68.css

runtime.8d843e9d.js

9755.c964f554.js

5169.df92f2c9.js

5644.886765fe.js

9154.ca1aa940.js

6891.b1121508.js

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9458.a64aaf55.js

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trk_standalone.js

css2

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j.php

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stijndf.png

Trustpilot_ratings_4halfstar-RGB.svg

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