Access shockwave.nl. Shockwave therapie | Snelle afspraak

name

value

score

weighting

FCP (First Contentful Paint)

Value5.7 s

5/100

10%

LCP (Largest Contentful Paint)

Value7.2 s

5/100

25%

SI (Speed Index)

Value10.1 s

9/100

10%

TBT (Total Blocking Time)

Value620 ms

48/100

30%

CLS (Cumulative Layout Shift)

Value0.049

99/100

15%

TTI (Time to Interactive)

Value6.8 s

55/100

10%

www.shockwave.nl

1088 ms

Our browser made a total of 1 request to load all elements on the main page. We found that all of those requests were addressed to Shockwave.nl and no external sources were called. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Shockwave.nl.

Content Size

1.7 MB

After Optimization

944.0 kB

In fact, the total size of Shockwave.nl main page is 1.7 MB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. Images take 721.4 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 316.7 kB

Original 384.9 kB
After minification 384.8 kB
After compression 68.2 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 316.7 kB or 82% of the original size.

Image Optimization

-0%

Potential reduce by 885 B

Original 721.4 kB
After minification 720.5 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. Shockwave images are well optimized though.

JavaScript Optimization

-59%

Potential reduce by 145.4 kB

Original 244.4 kB
After minification 244.4 kB
After compression 99.0 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 145.4 kB or 59% of the original size.

CSS Optimization

-82%

Potential reduce by 256.5 kB

Original 312.8 kB
After minification 312.7 kB
After compression 56.3 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. Shockwave.nl needs all CSS files to be minified and compressed as it can save up to 256.5 kB or 82% of the original size.

Requests Now

After Optimization

Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.

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 usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

High

ARIA IDs are not unique

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

Links do not have a discernible name

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

Search Engine Optimization Advices

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

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 Shockwave.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 Shockwave.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 PARSED_DOMAIN, but there is no image specified in description. It would be a good idea for the website admin to select a nice image that can properly represent the website in Open Graph data, otherwise the first found image will be taken for this purpose and social media information block will look like this: