Tools & Wizards About Us
ongevallen.org screenshot

Report Summary

  • 23

    Performance

    Renders faster than
    42% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

ongevallen.org

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Page Load Speed

2.2 sec in total

First Response

448 ms

Resources Loaded

1.5 sec

Page Rendered

312 ms

ongevallen.org screenshot

About Website

Welcome to ongevallen.org homepage info - get ready to check Ongevallen best content right away, or after learning these important things about ongevallen.org

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Visit ongevallen.org

Key Findings

We analyzed Ongevallen.org page load time and found that the first response time was 448 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

ongevallen.org performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

13/100

10%

LCP (Largest Contentful Paint)

Value12.2 s

0/100

25%

SI (Speed Index)

Value7.4 s

28/100

10%

TBT (Total Blocking Time)

Value2,120 ms

7/100

30%

CLS (Cumulative Layout Shift)

Value0.021

100/100

15%

TTI (Time to Interactive)

Value11.1 s

20/100

10%

Network Requests Diagram

ongevallen.org

448 ms

stylenew.css

92 ms

js

25 ms

jquery.js

298 ms

show_ads.js

5 ms

Our browser made a total of 57 requests to load all elements on the main page. We found that 7% of them (4 requests) were addressed to the original Ongevallen.org, 40% (23 requests) were made to Maps.googleapis.com and 11% (6 requests) were made to Tpc.googlesyndication.com. The less responsive or slowest element that took the longest time to load (448 ms) belongs to the original domain Ongevallen.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 396.1 kB (44%)

Content Size

898.6 kB

After Optimization

502.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ongevallen.org main page is 898.6 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. Javascripts take 574.0 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 25.7 kB

  • Original 31.5 kB
  • After minification 31.0 kB
  • After compression 5.8 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 25.7 kB or 82% of the original size.

Image Optimization

-2%

Potential reduce by 6.8 kB

  • Original 288.0 kB
  • After minification 281.2 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. Ongevallen images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 359.5 kB

  • Original 574.0 kB
  • After minification 573.9 kB
  • After compression 214.6 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 359.5 kB or 63% of the original size.

CSS Optimization

-81%

Potential reduce by 4.1 kB

  • Original 5.1 kB
  • After minification 3.5 kB
  • After compression 982 B

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. Ongevallen.org needs all CSS files to be minified and compressed as it can save up to 4.1 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (44%)

Requests Now

52

After Optimization

29

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ongevallen. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

ongevallen.org

ongevallen.org

448 ms

stylenew.css

stylenew.css

92 ms

js

js

25 ms

jquery.js

jquery.js

298 ms

show_ads.js

show_ads.js

5 ms

ga.js

ga.js

40 ms

page_bg.png

page_bg.png

152 ms

ca-pub-3499967838674821.js

ca-pub-3499967838674821.js

55 ms

zrt_lookup.html

zrt_lookup.html

124 ms

show_ads_impl.js

show_ads_impl.js

63 ms

__utm.gif

__utm.gif

83 ms

common.js

common.js

71 ms

map.js

map.js

72 ms

layers.js

layers.js

70 ms

StaticMapService.GetMapImage

StaticMapService.GetMapImage

68 ms

ads

ads

204 ms

osd.js

osd.js

64 ms

ads

ads

177 ms

util.js

util.js

54 ms

onion.js

onion.js

52 ms

openhand_8_8.cur

openhand_8_8.cur

69 ms

ads

ads

235 ms

ViewportInfoService.GetViewportInfo

ViewportInfoService.GetViewportInfo

90 ms

stats.js

stats.js

47 ms

controls.js

controls.js

42 ms

transparent.png

transparent.png

17 ms

css

css

44 ms

google4.png

google4.png

33 ms

mapcnt6.png

mapcnt6.png

49 ms

sv5.png

sv5.png

50 ms

m_js_controller.js

m_js_controller.js

38 ms

abg.js

abg.js

64 ms

vt

vt

139 ms

vt

vt

133 ms

vt

vt

134 ms

vt

vt

125 ms

vt

vt

135 ms

vt

vt

131 ms

vt

vt

157 ms

vt

vt

243 ms

vt

vt

247 ms

vt

vt

163 ms

vt

vt

246 ms

vt

vt

243 ms

vt

vt

247 ms

2UX7WLTfW3W8TclTUvlFyQ.woff

2UX7WLTfW3W8TclTUvlFyQ.woff

5 ms

RxZJdnzeo3R5zSexge8UUT8E0i7KZn-EPnyo3HZu7kw.woff

RxZJdnzeo3R5zSexge8UUT8E0i7KZn-EPnyo3HZu7kw.woff

31 ms

Hgo13k-tfSpn0qi1SFdUfT8E0i7KZn-EPnyo3HZu7kw.woff

Hgo13k-tfSpn0qi1SFdUfT8E0i7KZn-EPnyo3HZu7kw.woff

67 ms

d-6IYplOFocCacKzxwXSOD8E0i7KZn-EPnyo3HZu7kw.woff

d-6IYplOFocCacKzxwXSOD8E0i7KZn-EPnyo3HZu7kw.woff

67 ms

favicon

favicon

139 ms

googlelogo_color_112x36dp.png

googlelogo_color_112x36dp.png

133 ms

nessie_icon_tiamat_white.png

nessie_icon_tiamat_white.png

93 ms

imgad

imgad

113 ms

s

s

93 ms

x_button_blue2.png

x_button_blue2.png

91 ms

8240769907036984081

8240769907036984081

140 ms

fBnyGA8Aionz5086-mElmoOSPUuyQ1M9Un647_EjucU.js

fBnyGA8Aionz5086-mElmoOSPUuyQ1M9Un647_EjucU.js

17 ms

Accessibility Review

ongevallen.org accessibility score

86

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

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

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

Best Practices

ongevallen.org best practices score

58

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

Browser errors were logged to the console

SEO Factors

ongevallen.org SEO score

75

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    NL

  • Language Claimed

    NL

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ongevallen.org 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 Ongevallen.org main page’s claimed encoding is . Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

ongevallen.org

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