Analyze Koninklijk Instituut voor de Marine (KIM) | Defensieacademie (NLDA) |

Marineofficieren volgen hun opleiding bij het Koninklijk Instituut voor de Marine (KIM) in Den Helder. Op leest u meer over het KIM

Page load speed analysis

  • 70/100

    Good result
  • 7

    Successful tests
  • 1

    Failed test
  • First response

    335 ms

  • Resources loaded

    2.8 sec

  • Page rendered

    323 ms

  • Total page load time

    3.5 sec

Click here to check amazing KIM content. Otherwise, check out these important facts you probably never knew about

We analyzed page load time and found that the first response time was 335 ms and then it took 3.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Page optimization

  • HTML 23.6 kB
    Images 0 B
    Javascripts 51.5 kB
    CSS 0 B

    In fact, the total size of main page is 75.1 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. 30% of websites need less resources to load. Javascripts take 51.5 kB which makes up the majority of the site volume.

    • Original 23.6 kB
    • After minification 21.0 kB
    • After compression 4.6 kB

    HTML optimization

    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 2.6 kB, which is 11% 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 19.0 kB or 80% of the original size.

    • Original 51.5 kB
    • After minification 51.5 kB
    • After compression 18.2 kB

    JavaScript optimization

    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 33.3 kB or 65% of the original size.

Network requests diagram

  • kim
  • responsive-16.01.711.min.css
  • def-150702.css
  • core-16.01.1221.min.js
  • logo-defensie2.svg
  • officiers-in-opleiding.jpg
  • locatie-den-helder.jpg
  • kim1_.jpg
  • def-sprite-icons-xl-1.2.png
  • sprite-icons-sharing-xl-1.2.png
  • RO-SansWebText-Regular.woff
  • RO-SansWebText-Bold.woff
  • RO-SerifWeb-Regular.woff
  • piwik.js
  • jquery-1.8.1-ui-1.8.23.custom-16.01.1221.min.js
  • jquery-swipebox-16.01.1221.min.js
  • miscellaneous-16.01.1221.min.js
  • sprite-image-options.png

Our browser made a total of 20 requests to load all elements on the main page. We found that 5% of them (1 request) were addressed to the original, 90% (18 requests) were made to and 5% (1 request) were made to The less responsive or slowest element that took the longest time to load (892 ms) relates to the external source

Additional info on


The browser has sent 15 CSS, Javascripts, AJAX and image requests in order to completely render the main page of KIM. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.









Possible request optimization











Good result


As for redirects, our browser was forwarded to before it reached this domain.

IP address uses IP address which is currently shared with 4 other domains. The more sites share the same IP address, the higher the host server’s workload is. It is strongly recommended that the host server should be changed or the hosting provider should be requested to give a different (separate) IP address for this domain.

Poor result

IP Trace

DNS records

Type Host Target/ip TTL Other
A 300
NS 300
NS 300

300 Mname:
Serial: 2009103850
Refresh: 14400
Retry: 1440
Expire: 604800
Minimum-ttl: 300

300 Txt: v=spf1 a mx -all

Language and encoding

Good result


NL nl language flag


NL nl language flag





Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 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 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.

HTTPS certificate

SSL Certificate has no SSL certificate. Web browsing can be safer with HTTPS connection, so we suggest that it should be obtained for this site.

Normal result

Visitor World Map

The server of is located in Netherlands, but, unfortunately, we cannot identify the countries where the visitors come from and thus it’s impossible to define if the distance can potentially affect the page load time.

Good result

Normal result

Social Sharing Optimization

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

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