Tools & Wizards About Us
vogelbescherming.nl screenshot

Report Summary

  • 36

    Performance

    Renders faster than
    56% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

vogelbescherming.nl

Samen voor vogels en natuur | Vogelbescherming

Page Load Speed

3.5 sec in total

First Response

324 ms

Resources Loaded

2.5 sec

Page Rendered

704 ms

vogelbescherming.nl screenshot

About Website

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

Vogelbescherming Nederland komt op voor vogels en hun leefgebieden. Help je mee?

Visit vogelbescherming.nl

Key Findings

We analyzed Vogelbescherming.nl page load time and found that the first response time was 324 ms and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

vogelbescherming.nl performance score

36

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

19/100

10%

LCP (Largest Contentful Paint)

Value10.0 s

0/100

25%

SI (Speed Index)

Value6.4 s

40/100

10%

TBT (Total Blocking Time)

Value690 ms

43/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value10.8 s

22/100

10%

Network Requests Diagram

vogelbescherming.nl

324 ms

vogelbescherming.nl

288 ms

www.vogelbescherming.nl

680 ms

gtm.js

614 ms

dsgstx9z.js

347 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that 4% of them (3 requests) were addressed to the original Vogelbescherming.nl, 34% (24 requests) were made to Cdn-img.newstory.nl and 30% (21 requests) were made to Cdn-cf.newstory.nl. The less responsive or slowest element that took the longest time to load (936 ms) relates to the external source Cdn-img.newstory.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 110.3 kB (9%)

Content Size

1.2 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vogelbescherming.nl main page is 1.2 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. Images take 974.8 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 65.5 kB

  • Original 80.9 kB
  • After minification 70.8 kB
  • After compression 15.4 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 10.0 kB, which is 12% 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 65.5 kB or 81% of the original size.

Image Optimization

-1%

Potential reduce by 9.8 kB

  • Original 974.8 kB
  • After minification 965.0 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. Vogelbescherming images are well optimized though.

JavaScript Optimization

-44%

Potential reduce by 34.4 kB

  • Original 77.5 kB
  • After minification 77.2 kB
  • After compression 43.1 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 34.4 kB or 44% of the original size.

CSS Optimization

-2%

Potential reduce by 644 B

  • Original 38.3 kB
  • After minification 38.2 kB
  • After compression 37.6 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. Vogelbescherming.nl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 21 (34%)

Requests Now

61

After Optimization

40

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 61 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vogelbescherming. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

vogelbescherming.nl

vogelbescherming.nl

324 ms

vogelbescherming.nl

vogelbescherming.nl

288 ms

www.vogelbescherming.nl

www.vogelbescherming.nl

680 ms

gtm.js

gtm.js

614 ms

dsgstx9z.js

dsgstx9z.js

347 ms

bootstrap.min.css

bootstrap.min.css

44 ms

style.css

style.css

30 ms

font-awesome.min.css

font-awesome.min.css

39 ms

iec5jhb.css

iec5jhb.css

56 ms

jquery-1.12.4.min.js

jquery-1.12.4.min.js

38 ms

bootstrap.min.js

bootstrap.min.js

67 ms

jquery.bootstrap-dropdown-hover.min.js

jquery.bootstrap-dropdown-hover.min.js

46 ms

misc.js

misc.js

47 ms

vogelgids-zoek.js

vogelgids-zoek.js

48 ms

mobmenu.js

mobmenu.js

47 ms

parsley.min.js

parsley.min.js

48 ms

parsley.custom.js

parsley.custom.js

48 ms

parsley.nl.js

parsley.nl.js

49 ms

form.js

form.js

48 ms

icons.css

icons.css

23 ms

icons.css

icons.css

23 ms

p.css

p.css

29 ms

footer-bgimage.png

footer-bgimage.png

496 ms

a7bab145-e2a0-4d90-80cb-5d8afb9ec27e.jpg&h=200&w=300&v=1698161483

a7bab145-e2a0-4d90-80cb-5d8afb9ec27e.jpg&h=200&w=300&v=1698161483

79 ms

15b8baa2-1a4b-4208-9a8b-b77904b9da3e.jpg&h=200&w=300&v=1512566566

15b8baa2-1a4b-4208-9a8b-b77904b9da3e.jpg&h=200&w=300&v=1512566566

18 ms

50a57364-bddb-4d3f-a4ba-9469da0d5a26.jpg&h=200&w=300&v=1572536987

50a57364-bddb-4d3f-a4ba-9469da0d5a26.jpg&h=200&w=300&v=1572536987

20 ms

0e64f340-449a-4ffe-b542-66a773c54ebe.jpg&h=200&w=300&v=1525341775

0e64f340-449a-4ffe-b542-66a773c54ebe.jpg&h=200&w=300&v=1525341775

28 ms

3ff6db5f-c593-495a-a825-1847c9351634.jpg&h=200&w=300&v=1512056498

3ff6db5f-c593-495a-a825-1847c9351634.jpg&h=200&w=300&v=1512056498

29 ms

57ac940c-a60a-4803-92c4-cb507bfaa6c8.jpg&h=200&w=300&v=1692887481

57ac940c-a60a-4803-92c4-cb507bfaa6c8.jpg&h=200&w=300&v=1692887481

31 ms

c4b30256-1805-46a4-a85f-fd400e7c82e3.jpg&h=200&w=300&v=1621942806

c4b30256-1805-46a4-a85f-fd400e7c82e3.jpg&h=200&w=300&v=1621942806

29 ms

aacbb3ea-b4c8-419d-984a-dbd0412f82b7.jpg&h=200&w=300&v=1512056498

aacbb3ea-b4c8-419d-984a-dbd0412f82b7.jpg&h=200&w=300&v=1512056498

29 ms

b66b8e83-b8f4-40ab-affd-311a220ad087.jpg&h=200&w=300&v=1512056498

b66b8e83-b8f4-40ab-affd-311a220ad087.jpg&h=200&w=300&v=1512056498

29 ms

af2f1b61-c31c-47f4-a142-49edcca7e5da.JPG&h=200&w=300&v=1697452166

af2f1b61-c31c-47f4-a142-49edcca7e5da.JPG&h=200&w=300&v=1697452166

30 ms

64475dda-4198-4b6e-bc06-cb96f0116268.jpg&h=1350&w=2400&v=1714647898

64475dda-4198-4b6e-bc06-cb96f0116268.jpg&h=1350&w=2400&v=1714647898

936 ms

cc61b30d-c985-40dc-9583-2d6c1d04b220.png&h=150&w=150&v=1693844166

cc61b30d-c985-40dc-9583-2d6c1d04b220.png&h=150&w=150&v=1693844166

37 ms

d74fa005-8f85-4542-9cb0-0acec3111de9.jpg&h=360&w=570&v=1512056498

d74fa005-8f85-4542-9cb0-0acec3111de9.jpg&h=360&w=570&v=1512056498

35 ms

caafcb43-7935-41a8-8754-5281d29b2817.jpg&h=480&w=1140&v=1712132692

caafcb43-7935-41a8-8754-5281d29b2817.jpg&h=480&w=1140&v=1712132692

653 ms

303213ae-82e7-492d-b06d-70c81af37e1a.jpg&h=360&w=270&v=1678961329

303213ae-82e7-492d-b06d-70c81af37e1a.jpg&h=360&w=270&v=1678961329

529 ms

9CH1XROf-82c874bb-cdc3-41f3-bd15a448d9637697.jpg&h=360&w=555&v=1712941324

9CH1XROf-82c874bb-cdc3-41f3-bd15a448d9637697.jpg&h=360&w=555&v=1712941324

561 ms

9a94d52c-14c3-4757-a408-5701a4b50e8b.jpg&h=520&w=870&v=1646759159

9a94d52c-14c3-4757-a408-5701a4b50e8b.jpg&h=520&w=870&v=1646759159

59 ms

2ad55cdc-840a-4a32-9187-ac33051b8291.png&h=150&w=150&v=1610550398

2ad55cdc-840a-4a32-9187-ac33051b8291.png&h=150&w=150&v=1610550398

39 ms

9be71b7b-034e-4cef-b182-7ac56f876d21.jpg&h=200&w=150&v=1574848922

9be71b7b-034e-4cef-b182-7ac56f876d21.jpg&h=200&w=150&v=1574848922

41 ms

d334977b-4194-4a04-af00-fd3f33a02991.jpg&h=200&w=150&v=1574848911

d334977b-4194-4a04-af00-fd3f33a02991.jpg&h=200&w=150&v=1574848911

43 ms

51f5a53c-6aab-4e07-84b6-31ee5a5927d5.png&h=51&w=64&v=1523539700

51f5a53c-6aab-4e07-84b6-31ee5a5927d5.png&h=51&w=64&v=1523539700

46 ms

deeaf1e3-2125-4394-8928-071be37288fc.png&h=50&w=96&v=1643890526

deeaf1e3-2125-4394-8928-071be37288fc.png&h=50&w=96&v=1643890526

47 ms

a0e5794c-c149-4441-ab04-15a6a9be493c.png&h=71&w=68&v=1523539700

a0e5794c-c149-4441-ab04-15a6a9be493c.png&h=71&w=68&v=1523539700

50 ms

feb1b36c-1619-49e4-9f03-aac7991c1ae3.png&h=58&w=89&v=1654607241

feb1b36c-1619-49e4-9f03-aac7991c1ae3.png&h=58&w=89&v=1654607241

53 ms

bg_gradient-jpg-min.jpg

bg_gradient-jpg-min.jpg

529 ms

VBN-beeldmerk-wit.svg

VBN-beeldmerk-wit.svg

12 ms

VBN-logo-wit.svg

VBN-logo-wit.svg

14 ms

scroll-ico.png

scroll-ico.png

15 ms

VBN-logo-kleur.png

VBN-logo-kleur.png

12 ms

d

d

15 ms

d

d

16 ms

d

d

14 ms

bloc.woff

bloc.woff

526 ms

iconfont.ttf

iconfont.ttf

23 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

526 ms

96 ms

dsgstx9z_1715099165664_es5.js

dsgstx9z_1715099165664_es5.js

641 ms

js

js

147 ms

analytics.js

analytics.js

54 ms

destination

destination

81 ms

MiddleCookieMessageIconCheck.png

MiddleCookieMessageIconCheck.png

60 ms

MiddleCookieMessageIconDecline.png

MiddleCookieMessageIconDecline.png

59 ms

MiddleCookieMessageIconInfo.png

MiddleCookieMessageIconInfo.png

61 ms

collect

collect

51 ms

collect

collect

279 ms

collect

collect

83 ms

ga-audiences

ga-audiences

90 ms

Accessibility Review

vogelbescherming.nl accessibility score

88

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.

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

Best Practices

vogelbescherming.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

vogelbescherming.nl SEO score

77

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

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 doesn't use 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 Vogelbescherming.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 Vogelbescherming.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

vogelbescherming.nl

Open Graph data is detected on the main page of Vogelbescherming. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: