Your privacy is very important to us. We are therefore careful to make sure we abide by all privacy protection laws. So your data is safe with us and always treated with respect. This privacy statement explains what we do with the information that we receive about you. If you have any questions or want to know exactly what information we hold about you, please get in touch.

Processing by SIDN

Our primary role is managing the .nl internet domain. We also provide a variety of other services.

The nature of the personal data that we process depends on the activity involved. On this page, you'll find a list of our activities. For details of the data processing associated with each activity, click on the relevant list item.


We are certified to ISO 27001. Certification shows that we have appropriate measures in place to secure our business information, including your personal data.

Data Protection Officer

We have a Data Protection Officer: a staff member with special responsibility for privacy protection within our organisation. Our Data Protection Officer is Karin Vink. Karin can be contacted by mailing or calling +31 (0)26 352 5500. She is the person to get in touch with if you have a privacy-related question or request.

Changes to this privacy statement

If we modify any of our services, we'll update our privacy statement to reflect the change. So please check the date at the top of this statement and make sure that you have the current version. We'll always do our best to make people aware of updates through other channels.

Checking what data we hold about you and getting it amended or deleted

If you have a privacy-related question or want to know what information we hold about you, please get in touch. Our contact details are given at the bottom of the page.

You have the following rights:

  • To know what personal data we hold and what we use it for

  • To see the personal data we hold about you

  • To have errors corrected

  • To have outdated personal data deleted

  • To withdraw any consent you have previously given

  • To object to your personal data being used for a particular purpose

In order to exercise any of those rights, you must demonstrate who you are, because we have to make sure that we don't share, change or delete the wrong person's data.

Making a complaint

If you think that we haven't given you the assistance that you're entitled to, you can complain to the supervisory authority, the Data Protection Authority.

Contact details

SIDN Meander 501 6825 MD Arnhem The Netherlands +31 (0)26 352 55 55


  • Tuesday 20 August 2019

    Internet security

    RIPE NCC starts issuing IPv6 addresses from second /12 block


    New 2a10/12 address block assigned by IANA

    Read more
  • Monday 14 January 2019


    STARTTLS and DANE for outgoing mail mandatory for government organisations


    DANE validation added to 'use-or-explain' list

    Read more
  • Monday 18 December 2017


    Preserving our digital heritage


    Unique sources of human knowledge and expression

    Read more


Your browser is too old to optimally experience this website. Upgrade your browser to improve your experience.