Tools & Wizards About Us

Report Summary

  • 33

    Performance

    Renders faster than
    53% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 29% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

nibhv.nl

NIBHV | Kennisinstituut voor bhv & veilig werken

Page Load Speed

3.9 sec in total

First Response

371 ms

Resources Loaded

3.1 sec

Page Rendered

482 ms

About Website

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

NIBHV zorgt voor onafhankelijke persoonscertificering van bhv in NL. Zo houden we de werkvloer veilig. ✔ e-learning ✔ lesmateriaal ✔ kwaliteitsborging

Visit nibhv.nl

Key Findings

We analyzed Nibhv.nl page load time and found that the first response time was 371 ms and then it took 3.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

nibhv.nl performance score

33

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value11.5 s

0/100

25%

SI (Speed Index)

Value8.2 s

20/100

10%

TBT (Total Blocking Time)

Value780 ms

38/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value12.6 s

14/100

10%

Network Requests Diagram

nibhv.nl

371 ms

www.nibhv.nl

617 ms

js

84 ms

style.min.css

105 ms

style.css

199 ms

Our browser made a total of 94 requests to load all elements on the main page. We found that 88% of them (83 requests) were addressed to the original Nibhv.nl, 3% (3 requests) were made to Googletagmanager.com and 3% (3 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain Nibhv.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 166.8 kB (17%)

Content Size

954.6 kB

After Optimization

787.7 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Nibhv.nl main page is 954.6 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. 65% of websites need less resources to load. Images take 654.6 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 164.3 kB

  • Original 191.4 kB
  • After minification 172.3 kB
  • After compression 27.1 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 164.3 kB or 86% of the original size.

Image Optimization

-0%

Potential reduce by 2.4 kB

  • Original 654.6 kB
  • After minification 652.2 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. NIBHV images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 95 B

  • Original 108.5 kB
  • After minification 108.5 kB
  • After compression 108.4 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. This website has mostly compressed JavaScripts.

Requests Breakdown

Number of requests can be reduced by 62 (72%)

Requests Now

86

After Optimization

24

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 86 CSS, Javascripts, AJAX and image requests in order to completely render the main page of NIBHV. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 40 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

nibhv.nl accessibility score

64

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

High

ARIA IDs are not unique

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.

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

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

nibhv.nl best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

nibhv.nl SEO score

93

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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 Nibhv.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 Nibhv.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 NIBHV. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: