Tools & Wizards About Us

Report Summary

  • 29

    Performance

    Renders faster than
    49% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 51% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

pzo.nl

Platform Zelfstandige Ondernemers - Dé belangenbehartiger voor zzp'ers

Page Load Speed

4.1 sec in total

First Response

346 ms

Resources Loaded

3.2 sec

Page Rendered

495 ms

About Website

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

PZO is een vereniging van, voor en door zelfstandig ondernemers. Wij helpen jou in je ondernemerschap. En wij komen op voor jouw belangen.

Visit pzo.nl

Key Findings

We analyzed Pzo.nl page load time and found that the first response time was 346 ms and then it took 3.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

pzo.nl performance score

29

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

20/100

10%

LCP (Largest Contentful Paint)

Value12.0 s

0/100

25%

SI (Speed Index)

Value8.6 s

17/100

10%

TBT (Total Blocking Time)

Value660 ms

45/100

30%

CLS (Cumulative Layout Shift)

Value0.172

69/100

15%

TTI (Time to Interactive)

Value11.4 s

19/100

10%

Network Requests Diagram

pzo.nl

346 ms

www.pzo.nl

991 ms

javascript;base64,CgkJZG9jdW1lbnQuZG9jdW1lbnRFbGVtZW50LmNsYXNzTmFtZSA9ICdqcyc7Cgk=

2 ms

css

35 ms

autoptimize_single_1e5cee3873e64e7a8e153a5453040e36.php

196 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that 54% of them (36 requests) were addressed to the original Pzo.nl, 18% (12 requests) were made to Fonts.gstatic.com and 13% (9 requests) were made to . The less responsive or slowest element that took the longest time to load (991 ms) belongs to the original domain Pzo.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 820.1 kB (46%)

Content Size

1.8 MB

After Optimization

947.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Pzo.nl main page is 1.8 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. Javascripts take 706.6 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 223.2 kB

  • Original 264.8 kB
  • After minification 264.7 kB
  • After compression 41.6 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 223.2 kB or 84% of the original size.

Image Optimization

-7%

Potential reduce by 48.9 kB

  • Original 666.7 kB
  • After minification 617.8 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. Pzo images are well optimized though.

JavaScript Optimization

-62%

Potential reduce by 437.8 kB

  • Original 706.6 kB
  • After minification 706.6 kB
  • After compression 268.8 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 437.8 kB or 62% of the original size.

CSS Optimization

-85%

Potential reduce by 110.3 kB

  • Original 129.2 kB
  • After minification 129.0 kB
  • After compression 18.9 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. Pzo.nl needs all CSS files to be minified and compressed as it can save up to 110.3 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 33 (77%)

Requests Now

43

After Optimization

10

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Pzo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

pzo.nl accessibility score

81

Accessibility Issues

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

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

Best Practices

pzo.nl best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

pzo.nl SEO score

93

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

    NL

  • Language Claimed

    NL

  • Encoding

    UTF-8

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