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List of cookies used

On this page you will find an overview of the cookies we use per type of cookie. All cookies we use are on this list.


Functional cookies

  • Google Tag Manager: makes it easier to place and delete cookies
  • Usabilla: allows you to provide feedback on our website
  • a number of Sitecore cookies (content management system in which our website is built): ai_user, ai_sessions and sc_analytics_global_cookie

Analytical cookies

  • Google Optimise: this allows us to determine how we can best organize pages on our website to provide the best possible service to users
  • Google Analytics: this allows us to determine how our website is used and where we can optimise it
  • Hotjar: this allows us to see how pages selected by users on our website are used. This helps us to continuously improve the information we provide to users

Personal cookies

  • Eloqua: this shows us how business visitors read the information on our business website so that we can eventually get in touch with them
  • Google Adwords: shows how you use our general pages so that we can show you relevant advertisements on other websites. This cookie is not placed on web pages that hold information about specific treatments or coverage thereof
  • Adform: with this pixel we ensure that you will only see appropriate ONVZ advertisements on the websites you visit
  • Doubleclick: with this pixel we continuously measure and improve our online campaign to show you only relevant advertisements
  • Bing: this cookie allows us to show you relevant advertisements on the Bing search engine and other websites. This cookie is not placed on web pages that hold information about treatments or coverage thereof

Retention periods

We do not store your data longer than necessary. How long we keep the data depends on the purpose for which the cookie was placed. In the overview you will find more information about the applicable retention periods.


We only use analytical and personal cookies with your permission. We ask for your permission through a so-called cookie wall. You can select which cookies you accept and do not accept. We also explain what this choice means.

It is up to you

We believe it is important to protect the privacy of you as a visitor of our website. That is why you decide which cookies you accept and do not accept. We also explain what this choice means.

  • Set the number of cookies yourself

    You can choose to use fewer cookies

    Set cookies

Good to know

  • Personal information collected through cookies is covered by our privacy statement

    Your privacy is important to us. That is why we handle and protect your personal data with care. You can read more about this in our privacy statement.

  • This cookie statement may be amended

    Naturally, we aim to keep this statement up to date. That is why we can change the cookie statement. For example, if we are going to use other cookies. You will always find the most recent version on this page.

  • You can delete already placed cookies

    You can easily remove already placed cookies from your computer, tablet and smartphone. The process is slightly different for each browser. Your browser has a help function in which you can look up how to do this.

Contacting ONVZ

ONVZ is always ready and willing to assist you


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