Tools & Wizards About Us

Report Summary

  • 11

    Performance

    Renders faster than
    24% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

pvvn.nl

Home - Patiëntenvereniging voor Neuromodulatie PVVN (powered by e-captain.nl)

Page Load Speed

5.2 sec in total

First Response

503 ms

Resources Loaded

4.4 sec

Page Rendered

314 ms

About Website

Click here to check amazing PVVN content. Otherwise, check out these important facts you probably never knew about pvvn.nl

HOME De PVVN zet zich in door landelijke en regionale bijeenkomsten te organiseren (o.a. Inloopuur of Informatieavond in Ziekenhuizen), Lotgenotencontact te bieden, met haar aanwezigheid op Publieks- ...

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Key Findings

We analyzed Pvvn.nl page load time and found that the first response time was 503 ms and then it took 4.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

pvvn.nl performance score

11

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

17/100

10%

LCP (Largest Contentful Paint)

Value6.1 s

12/100

25%

SI (Speed Index)

Value9.2 s

13/100

10%

TBT (Total Blocking Time)

Value2,540 ms

4/100

30%

CLS (Cumulative Layout Shift)

Value0.441

21/100

15%

TTI (Time to Interactive)

Value18.3 s

3/100

10%

Network Requests Diagram

pvvn.nl

503 ms

wp-emoji-release.min.js

288 ms

bbpress.css

290 ms

buddypress.min.css

282 ms

styles.css

214 ms

Our browser made a total of 65 requests to load all elements on the main page. We found that 91% of them (59 requests) were addressed to the original Pvvn.nl, 8% (5 requests) were made to Fonts.gstatic.com and 2% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (2.8 sec) belongs to the original domain Pvvn.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.9 MB (72%)

Content Size

2.6 MB

After Optimization

720.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Pvvn.nl main page is 2.6 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. 45% of websites need less resources to load. CSS take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 46.1 kB

  • Original 56.1 kB
  • After minification 53.1 kB
  • After compression 10.0 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 46.1 kB or 82% of the original size.

Image Optimization

-13%

Potential reduce by 54.0 kB

  • Original 412.7 kB
  • After minification 358.7 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, PVVN needs image optimization as it can save up to 54.0 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-72%

Potential reduce by 597.8 kB

  • Original 829.9 kB
  • After minification 757.9 kB
  • After compression 232.1 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 597.8 kB or 72% of the original size.

CSS Optimization

-91%

Potential reduce by 1.2 MB

  • Original 1.3 MB
  • After minification 1.1 MB
  • After compression 119.2 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. Pvvn.nl needs all CSS files to be minified and compressed as it can save up to 1.2 MB or 91% of the original size.

Requests Breakdown

Number of requests can be reduced by 48 (83%)

Requests Now

58

After Optimization

10

  • Images
  • JavaScript
  • CSS

The browser has sent 58 CSS, Javascripts, AJAX and image requests in order to completely render the main page of PVVN. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 34 to 1 for JavaScripts and from 16 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

pvvn.nl accessibility score

78

Accessibility Issues

ARIA

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.

Impact

Issue

High

[aria-*] attributes do not match their roles

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

Buttons do not have an accessible name

High

<frame> or <iframe> elements do not have a title

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

[id] attributes on active, focusable elements are not unique

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

pvvn.nl best practices score

75

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

pvvn.nl SEO score

89

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

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 Pvvn.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 Pvvn.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 description is not detected on the main page of PVVN. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: