Tools & Wizards About Us
bvo.nl screenshot

Report Summary

  • 23

    Performance

    Renders faster than
    41% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

bvo.nl

Boertien Vergouwen Overduin | Boertien Vergouwen Overduin

Page Load Speed

5.8 sec in total

First Response

644 ms

Resources Loaded

5.1 sec

Page Rendered

80 ms

bvo.nl screenshot

About Website

Welcome to bvo.nl homepage info - get ready to check Bvo best content for Netherlands right away, or after learning these important things about bvo.nl

Boertien Vergouwen Overduin is hét topbureau op het gebied van training, opleiding en coaching in Nederland. Bekijk het uitgebreide aanbod.

Visit bvo.nl

Key Findings

We analyzed Bvo.nl page load time and found that the first response time was 644 ms and then it took 5.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

bvo.nl performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

14/100

10%

LCP (Largest Contentful Paint)

Value5.6 s

17/100

25%

SI (Speed Index)

Value9.8 s

10/100

10%

TBT (Total Blocking Time)

Value2,860 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.059

98/100

15%

TTI (Time to Interactive)

Value15.1 s

7/100

10%

Network Requests Diagram

www.bvo.nl

644 ms

app.91a593fff2b8e6aebeaf.css

335 ms

72.91a593fff2b8e6aebeaf.css

347 ms

99.91a593fff2b8e6aebeaf.css

350 ms

23.91a593fff2b8e6aebeaf.css

347 ms

Our browser made a total of 98 requests to load all elements on the main page. We found that 68% of them (67 requests) were addressed to the original Bvo.nl, 17% (17 requests) were made to Image.opleidingsgroep.nl and 4% (4 requests) were made to Ncoiplatform2-tst.azureedge.net. The less responsive or slowest element that took the longest time to load (1.9 sec) relates to the external source Gtmss.bvo.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 305.3 kB (18%)

Content Size

1.7 MB

After Optimization

1.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bvo.nl main page is 1.7 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. 55% of websites need less resources to load. Images take 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 171.9 kB

  • Original 204.6 kB
  • After minification 194.9 kB
  • After compression 32.7 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 171.9 kB or 84% of the original size.

Image Optimization

-3%

Potential reduce by 31.6 kB

  • Original 1.0 MB
  • After minification 988.5 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. Bvo images are well optimized though.

JavaScript Optimization

-21%

Potential reduce by 81.2 kB

  • Original 391.7 kB
  • After minification 391.7 kB
  • After compression 310.5 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 81.2 kB or 21% of the original size.

CSS Optimization

-29%

Potential reduce by 20.6 kB

  • Original 71.8 kB
  • After minification 71.4 kB
  • After compression 51.2 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. Bvo.nl needs all CSS files to be minified and compressed as it can save up to 20.6 kB or 29% of the original size.

Requests Breakdown

Number of requests can be reduced by 67 (76%)

Requests Now

88

After Optimization

21

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 88 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bvo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 50 to 1 for JavaScripts and from 19 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.bvo.nl

www.bvo.nl

644 ms

app.91a593fff2b8e6aebeaf.css

app.91a593fff2b8e6aebeaf.css

335 ms

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347 ms

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350 ms

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347 ms

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347 ms

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350 ms

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417 ms

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417 ms

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419 ms

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419 ms

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428 ms

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498 ms

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499 ms

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142.91a593fff2b8e6aebeaf.css

506 ms

css2

css2

32 ms

icon-econnect_1.png

icon-econnect_1.png

378 ms

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bd18557bffefcf2ad7adace79e7b4604.svg

592 ms

icon-econnect.png

icon-econnect.png

103 ms

bvo_engelse-vlag-(002).png

bvo_engelse-vlag-(002).png

434 ms

bvo_headers-header_home_desktop_1920x640.webp

bvo_headers-header_home_desktop_1920x640.webp

433 ms

bvo-visual-homepage-802x502.jpg

bvo-visual-homepage-802x502.jpg

436 ms

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435 ms

hqdefault.jpg

hqdefault.jpg

59 ms

bvo-slider-logo.png

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50 ms

widget_workshops_280x280.jpg

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378 ms

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bvo_stap_teaser-cirkel_280x280.jpg

651 ms

spaarnegasthuis_logo_slider.png

spaarnegasthuis_logo_slider.png

711 ms

venlo_logo_slider.png

venlo_logo_slider.png

704 ms

gemeente_maastricht.jpg

gemeente_maastricht.jpg

53 ms

logo-schiphol-group_1.jpg

logo-schiphol-group_1.jpg

59 ms

otib.jpg

otib.jpg

60 ms

zoetermeer_logo_slider.png

zoetermeer_logo_slider.png

713 ms

phone-transparent.png

phone-transparent.png

727 ms

whatsapp.png

whatsapp.png

734 ms

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455 ms

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436 ms

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443 ms

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505 ms

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529 ms

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29 ms

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39 ms

g-t-m

g-t-m

1449 ms

g-t-m

g-t-m

1897 ms

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712 ms

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244 ms

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338 ms

2

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719 ms

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349 ms

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137 ms

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153 ms

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79 ms

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148 ms

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4 ms

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89 ms

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87 ms

Accessibility Review

bvo.nl accessibility score

73

Accessibility Issues

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

Links do not have a discernible name

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.

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

bvo.nl best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

bvo.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 Bvo.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 Bvo.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

bvo.nl

Open Graph description is not detected on the main page of Bvo. 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: