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Report Summary

About Website

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

Alles over energie en milieu in het dagelijks leven. Milieu Centraal helpt je duurzame keuzes te maken. Onafhankelijk, betrouwbaar en praktisch.

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name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

26/100

10%

LCP (Largest Contentful Paint)

Value7.9 s

3/100

25%

SI (Speed Index)

Value4.8 s

67/100

10%

TBT (Total Blocking Time)

Value350 ms

74/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value6.1 s

64/100

10%

pde.nl

438 ms

www.milieucentraal.nl

711 ms

www.milieucentraal.nl

719 ms

style.css

88 ms

libs.min.js

272 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Pde.nl, 71% (29 requests) were made to Milieucentraal.nl and 10% (4 requests) were made to Fast.fonts.net. The less responsive or slowest element that took the longest time to load (752 ms) relates to the external source Milieucentraal.nl.

Content Size

556.9 kB

After Optimization

184.1 kB

In fact, the total size of Pde.nl main page is 556.9 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. 35% of websites need less resources to load. Javascripts take 429.9 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 20.5 kB

Original 27.3 kB
After minification 21.3 kB
After compression 6.8 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 6.0 kB, which is 22% 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 20.5 kB or 75% of the original size.

Image Optimization

-44%

Potential reduce by 25.3 kB

Original 56.9 kB
After minification 31.6 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, Pde needs image optimization as it can save up to 25.3 kB or 44% 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 293.2 kB

Original 429.9 kB
After minification 429.8 kB
After compression 136.7 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 293.2 kB or 68% of the original size.

CSS Optimization

-79%

Potential reduce by 33.8 kB

Original 42.8 kB
After minification 42.6 kB
After compression 9.0 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. Pde.nl needs all CSS files to be minified and compressed as it can save up to 33.8 kB or 79% of the original size.

Requests Now

After Optimization

The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Pde. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 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

Links do not have a discernible name

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

High

Page is blocked from indexing

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 Pde.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 Pde.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

pde.nl

Open Graph data is detected on the main page of Pde. 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

Domein Helden

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)