Tools & Wizards About Us
alarmcheck.nl screenshot

Report Summary

  • 49

    Performance

    Renders faster than
    67% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

alarmcheck.nl

Alle p2000 alarmeringen op de monitor | Alarmcheck.nl

Page Load Speed

6.6 sec in total

First Response

297 ms

Resources Loaded

6.2 sec

Page Rendered

90 ms

alarmcheck.nl screenshot

About Website

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

Bekijk alle p2000 meldingen op een monitor. De meldingen kunnen gefilterd worden op de soort dienst (brandweer, ambulance, politie) en op urgentie.

Visit alarmcheck.nl

Key Findings

We analyzed Alarmcheck.nl page load time and found that the first response time was 297 ms and then it took 6.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

alarmcheck.nl performance score

49

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.4 s

6/100

10%

LCP (Largest Contentful Paint)

Value6.4 s

10/100

25%

SI (Speed Index)

Value12.2 s

3/100

10%

TBT (Total Blocking Time)

Value180 ms

91/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value8.9 s

34/100

10%

Network Requests Diagram

alarmcheck.nl

297 ms

4669 ms

cookieconsent.min.css

20 ms

cookieconsent.min.js

31 ms

style.css

279 ms

Our browser made a total of 37 requests to load all elements on the main page. We found that 68% of them (25 requests) were addressed to the original Alarmcheck.nl, 8% (3 requests) were made to Pagead2.googlesyndication.com and 8% (3 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (4.7 sec) belongs to the original domain Alarmcheck.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 459.8 kB (53%)

Content Size

867.2 kB

After Optimization

407.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Alarmcheck.nl main page is 867.2 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. 25% of websites need less resources to load. Javascripts take 649.3 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 72.4 kB

  • Original 98.4 kB
  • After minification 93.4 kB
  • After compression 26.0 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 72.4 kB or 74% of the original size.

Image Optimization

-83%

Potential reduce by 48.3 kB

  • Original 57.9 kB
  • After minification 9.6 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, Alarmcheck needs image optimization as it can save up to 48.3 kB or 83% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-44%

Potential reduce by 287.3 kB

  • Original 649.3 kB
  • After minification 609.9 kB
  • After compression 361.9 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 287.3 kB or 44% of the original size.

CSS Optimization

-84%

Potential reduce by 51.8 kB

  • Original 61.7 kB
  • After minification 50.7 kB
  • After compression 9.9 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. Alarmcheck.nl needs all CSS files to be minified and compressed as it can save up to 51.8 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (69%)

Requests Now

32

After Optimization

10

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Alarmcheck. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

alarmcheck.nl

alarmcheck.nl

297 ms

4669 ms

cookieconsent.min.css

cookieconsent.min.css

20 ms

cookieconsent.min.js

cookieconsent.min.js

31 ms

style.css

style.css

279 ms

jquery-1.3.2.min.js

jquery-1.3.2.min.js

372 ms

jquery-ui-1.7.2.custom.min.js

jquery-ui-1.7.2.custom.min.js

465 ms

functions.js

functions.js

283 ms

jquery.bgiframe.min.js

jquery.bgiframe.min.js

190 ms

validate.js

validate.js

465 ms

jquery.autocomplete.js

jquery.autocomplete.js

477 ms

google.js

google.js

564 ms

monitor.js

monitor.js

478 ms

jquery-ui.css

jquery-ui.css

649 ms

jquery.autocomplete.css

jquery.autocomplete.css

650 ms

addthis_widget.js

addthis_widget.js

20 ms

ga.js

ga.js

12 ms

header_bg.png

header_bg.png

187 ms

alarmcheck-logo.png

alarmcheck-logo.png

192 ms

mainmenu_bg.png

mainmenu_bg.png

191 ms

close_button.png

close_button.png

190 ms

drop_shadow.png

drop_shadow.png

191 ms

__utm.gif

__utm.gif

12 ms

tableheader.png

tableheader.png

191 ms

ajs.php

ajs.php

17 ms

show_ads.js

show_ads.js

68 ms

adsbygoogle.js

adsbygoogle.js

99 ms

optionbar_bg.png

optionbar_bg.png

228 ms

left_tab.png

left_tab.png

330 ms

middle_tab.png

middle_tab.png

239 ms

right_tab.png

right_tab.png

238 ms

zoek-groot.png

zoek-groot.png

246 ms

show_ads_impl.js

show_ads_impl.js

371 ms

print.css

print.css

279 ms

zrt_lookup.html

zrt_lookup.html

34 ms

ads

ads

86 ms

ads

ads

78 ms

Accessibility Review

alarmcheck.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.

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

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

Form elements do not have associated labels

Best Practices

alarmcheck.nl 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

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

Page has valid source maps

SEO Factors

alarmcheck.nl SEO score

77

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    NL

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Alarmcheck.nl can be misinterpreted by Google and other search engines. Our service has detected that Dutch is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Alarmcheck.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

alarmcheck.nl

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