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Frequently visited

Frequently asked questions

  • I am looking for a domain name registrant. Where can I look it up?

    The Whois is an easy-to-use tool for checking the availability of a .nl domain name. If the domain name is already taken, you can see who has registered it.

    On the page looking up a domain name you will find more information about what a domain name is, how the Whois works and how the privacy of personal data is protected. Alternatively, you can go straight to look for a domain name via the Whois.

  • I would like to transfer my domain name to another registrar. What is the procedure?

    To get your domain name transferred, you need the token (unique ID number) for your domain name. Your existing registrar has the token and is obliged to give it to you within five days, if you ask for it. The procedure for changing your registrar is described on the page transferring your domain name.

  • The details registered about me/my company are incorrect or out of date. How can I get them updated?

    To update the contact details associated with your domain name, you need to contact your registrar. Read more about updating contact details.

  • Why is my domain name in quarantine?

    When a domain name is cancelled, we aren't told the reason, so we can't tell you. You'll need to ask your registrar. The advantage of quarantine is that, if a name's cancelled by mistake, you can always get it back.

    One common reason is that the contract between you and your registrar says you've got to renew the registration every year. If you haven't set up automatic renewal and you don't renew manually, the registration will expire.

  • Ik heb een klacht over mijn provider/registrar. Kan ik daarvoor bij SIDN terecht?

    Wanneer je een klacht hebt over of een geschil met je registrar dan zijn er verschillende mogelijkheden om tot een oplossing te komen. Hierover lees je meer op pagina klacht over registrar. SIDN heeft geen formele klachtenprocedure voor het behandelen van een klacht over jouw registrar.

  • What conditions do I have to meet as a registrar?

    Would you like to be able to register domain names for customers or for your own organisation by dealing directly with SIDN? If so, you can become a .nl registrar. Read more about the conditions and how to apply for registrar status on the page becoming a registrar.

More frequently asked questions

Supervisory Board

The Supervisory Board (SB) oversees the Executive Board's policies and the general situation at SIDN. The SB also gives the management advice.

What does the Supervisory Board focus on?

What we do Our annual reports

  • Whether we realise our objectives

  • Our strategy and operating risks

  • The structure and performance of our risk management and control systems

Who's on the SB? 

There are a minimum of 6 and a maximum of 9 members. The Board currently consists of 8 members:

Portrait photo of Marjet van Zuijlen, member of the supervisory board of SIDN

Marjet van Zuijlen

Marjet has been a member of our Supervisory Board since 1 September, 2022 and is the chair of the board. She is also a member of the Selection, Nomination and Remuneration Committee of the Supervisory Board.

Read more about Marjet van Zuijlen.

Mark Frequin

Mark joined the SB in April 2015. He is amongst the members of the SB's Selection, Nomination and Remuneration Committee and is the Vice Chair of the Board.

Read more about Mark Frequin.

Portrait photo of Wim Hafkamp, member of the Supervisory Board of SIDN

Wim Hafkamp

Wim joined the Supervisory Board on 1 January 2023. He is a member of the Security and Stability Committee of the Board.

Read more about Wim Hafkamp.

Portrait photo of Sandra Konings, member of the Supervisory Board of SIDN

Sandra Konings

Sandra became a member of our Supervisory Board on 1 January 2023. She is a member of the Security and Stability Committee of the Board.

Read more about Sandra Konings.

Portrait of Gerben van Leeuwen

Gerben van Leeuwen

Gerben has been a member of the Supervisory Board since April 2021 and is the chair of the Security and Stability Committee of the Board.

Read more about Gerben van Leeuwen.

Jeannine Peek

Jeannine is SB member, joining in June 2015 and a member of the Board's Audit Committee.

Read more about Jeannine Peek.

Dennis Raithel

Dennis joined the Supervisory Board in December 2021 and is chair of the Board's Audit Committee.

Read more about Dennis Raithel.

Portrait photo of Olaf Kolkman

Olaf Kolkman

Olaf became a member of our supervisory board in January 2024. He is a member of the board's security and stability committee.

Read more about Olaf Kolkman.

Terms of reference of the Supervisory Board

The SB follows these rules:

Downloads: minutes of SB meetings