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name

value

score

weighting

FCP (First Contentful Paint)

Value5.7 s

5/100

10%

LCP (Largest Contentful Paint)

Value5.9 s

14/100

25%

SI (Speed Index)

Value8.5 s

18/100

10%

TBT (Total Blocking Time)

Value110 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.19

64/100

15%

TTI (Time to Interactive)

Value7.2 s

50/100

10%

www.zonnepanelen-pro.nl

941 ms

style.css

380 ms

js

71 ms

style.min.css

462 ms

styles.css

290 ms

Our browser made a total of 51 requests to load all elements on the main page. We found that 80% of them (41 requests) were addressed to the original Zonnepanelen-pro.nl, 10% (5 requests) were made to Fonts.gstatic.com and 4% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Zonnepanelen-pro.nl.

Content Size

524.2 kB

After Optimization

185.5 kB

In fact, the total size of Zonnepanelen-pro.nl main page is 524.2 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. 25% of websites need less resources to load. Javascripts take 237.6 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 33.2 kB

Original 43.9 kB
After minification 42.9 kB
After compression 10.7 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. 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 33.2 kB or 76% of the original size.

Image Optimization

-5%

Potential reduce by 3.0 kB

Original 64.9 kB
After minification 62.0 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. Zonnepanelen Pro images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 152.9 kB

Original 237.6 kB
After minification 220.7 kB
After compression 84.7 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 152.9 kB or 64% of the original size.

CSS Optimization

-84%

Potential reduce by 149.6 kB

Original 177.8 kB
After minification 163.8 kB
After compression 28.2 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. Zonnepanelen-pro.nl needs all CSS files to be minified and compressed as it can save up to 149.6 kB or 84% of the original size.

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After Optimization

The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zonnepanelen Pro. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.