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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  • The details registered about me/my company are incorrect or out of date.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

News and blogs

Read our latest news about domain names, cybersecurity and online identity.

More news and blogs

Get to know more products!

  • SIDN BrandGuard

    Protect your brand against phishing and reputational damage because we warn you about domain registration that include your brand name.

    Learn more about SIDN BrandGuard

    Read more SIDN BrandGuard

  • .nl suggestion tool

    Could you use some creative help finding your perfect .nl domain name? Then play around with the .nl suggestion tool and find many variations on a specific .nl domain name.

    Get started with the .nl suggestion tool

    Read more .nl suggestion tool

For confidence online with SIDN

Core business

Every day we are committed to a carefree and promising digital existence. We do this by developing and delivering our services and products in the field of domain names and cybersecurity. Check the video about the role of SIDN.

Screenshot from corporate video SIDN

  • More than 6,000,000

    .nl domain names are managed by us.

  • More than 4 billion

    searches are processed on the internet for .nl on a daily bases.

  • .politie, .aw, .amsterdam

    we provide technical and legal support in their top-level domain.

  • More than 400

    internet projects were supported via SIDN Fund.

  • Over 8,000

    'abused' domain names are taken down every year. Thanks to good monitoring, we 'catch' more and more of them.

  • An 8

    is the appreciation of our customers.