uses cookies for web statistics. You can find out why below. You will also see what cookies uses and for what purpose.

What cookies does use?

This site uses cookies for web statistics and analytics.

Tracking cookies

Tracking cookies follow users across websites. This website does not use tracking cookies. As a result, the website does not support the Do Not Track (DNT) web browser feature. is compliant with Dutch law.

Cookies for web statistics and analytics uses cookies for web statistics and analytics to monitor how visitors use the site. This helps to improve the site. It shows where users require more information and how the site can be made more user-friendly.

These types of cookies do not affect privacy. That is why they are exempt from the rules on cookies in the Telecommunications Act. This means does not request permission from visitors to use these cookies.

Web statistics makes use of web statistics. To do this, it uses the open-source web analytics platform Piwik. analyses data collected via Piwik to help it adapt to its visitors’ needs. does not use the data for any purpose other than improving the website. The table below shows the cookies used for statistics.

Cookie: Purpose:
Cookie_pk_id Is a user new to the site or a repeat visitor?

Cookie _pk_ses

Which pages were visited?
Cookie _pk_ref What site did the user come from?

Survey sometimes asks visitors to complete an online survey. In this case the ‘surveystatus’ cookie is used. This shows whether a visitor has completed the survey. The cookies used are listed in the table below.

Cookie: Purpose:
Cookie _pk_cvar Was the user invited to complete the online survey during their visit?
Cookie surveyvisittime How long did they stay on the site?
Cookie surveystatus Did the user complete the online survey on