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  • The details registered about me/my company are incorrect or out of date.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

Two new DNSSEC-validating DNS services launched

  • Wednesday 25 April 2018

In recent weeks, two new DNS services for the general public have been launched, and both support DNSSEC validation.

The first is Quad9, an industry consortium established by IBM, PCH and a long list of ICT security companies. Given the consortium's membership, it's no surprise that the service places particular emphasis on blocking referrals to domain names associated with abuse. Quad9 says that all query/response information will be retained classified not by IP address but on the basis of geolocation and shared with participants.

The second new DNS service is 1.1.1.1, an initiative by CDN provider Cloudflare and APNIC, the IP address administrator for the APAC region. The service is aimed explicitly at end users, with privacy protection as its central feature.

Manuals are available here [1, 2] for configuring a resolver running Unbound and configuring the 1.1.1.1 service on, respectively, Raspberry Pi and the OpenWrt platform. Those mini-systems are therefore now part of the same family as the Valibox, a device that lets end users immediately enable end-to-end DNSSEC validation on their wireless home/office networks.

Google's Public DNS and OpenDNS

With the new DNS services up and running, there are now two DNSSEC-validating alternatives to Google's Public DNS, which (temporarily) logs users' IP addresses, for example.

The fourth major public DNS service is OpenDNS, a commercial service now under the Cisco umbrella, which doesn't support DNSSEC validation.