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  • The details registered about me/my company are incorrect or out of date.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

Register for the SIDN TechTalk on 15th of April

2 fascinating speakers, a free dinner and a drink at the end.

  • Monday 10 March 2025

TechTalk is back with a new edition on Wednesday 15th of April 2025! It's the familiar format: 2 fascinating speakers talking, plus an enjoyable meal. Come to the SIDN TechTalk on Wednesday 15 April and be inspired! Places are limited, so we recommend registering soon.

SIDN operates at the heart of the Dutch internet. Often in partnership with universities and other higher education centres. And often participating in national and international working groups concerned with abuse, security and data. We also maintain close ties with a variety of technical and other bodies in the Netherlands. As a result, we have expertise in many key fields, which we love to share with the internet community.

Who's TechTalk for?

Technical professionals and students from the Arnhem region who are passionate about their field, open to new developments and keen to share their knowledge.

Programme

18:00 – 19:00: Reception Don't go eating before you arrive! The programme includes an enjoyable, free evening meal.

19:00 – 19:45: Talk 1 Chat Control: the European regulation that threatens privacy and digital resilience threatened - Rejo Zenger (Policy advisor at Bits of Freedom)

The governments of European Union member states, together in ‘the Council’, have been negotiating a disastrous bill for almost three years. The European Commission wants governments to be able to force platforms to watch all the messages of all their users, looking for criminal material. This means nothing but large-scale and untargeted surveillance, rendering encryption useless and undermining the confidentiality of communications. It says it is meant to protect children and young people, but the proposed measures harm everyone, including those children and young people.

The cabinet decided last year not to support the proposal. Partly because, according to the AIVD, it poses too great a risk to our digital security. As a result, there was no agreement in the Council, allowing the proposal to be stopped at the time. So no client-side scanning or other encryption-circumvention measures for a while yet. But for how long?

About Rejo

Rejo Zenger is policy advisor at Bits of Freedom, the foundation that stands up for privacy and communication freedom on the internet. He is an expert on encryption and platform regulation.

19:45 - 20:30: Talk 2 DELEG: DNS on the rocks. Delegate like a pro! Safely and with confidence - Willem Toorop (developer and researcher at NLnet Labs)

The DNS protocol, in its current state, provides only basic facilities to communicate information from a parent zone (such as .nl) to a resolving nameserver (such as 8.8.8.8) about the nameservers of a child zone (such as sidn.nl). Only the NS, DS and glue mechanisms are available. Any other properties of that child zone nameserver have to be figured out by the resolver itself through other mechanisms.

Child zone operators also face a challenge: if their nameservers change, the changes must be communicated to the parent outside the DNS protocol.A new record type DELEG is in the works to solve this.

About Willem

Willem Toorop is a developer and researcher at NLnet Labs. Willem has a special interest in delivering first-class security and privacy (with DNSSEC and encrypted DNS) to end-users at the edges of the Internet. Willem enjoys working with authors of other Open Source DNS software and DNS operators on Open Standards and at hackathons to achieve interoperability of different DNS software. He also enjoys taking measurements of the state of the internet and DNS, to give feedback to operators and to get a better idea of where things can be improved protocol-wise and software-wise. He is passionate about his work and cannot resist talking, explaining and presenting about it.

20:30 – 21:00: Chat and refreshments

Where is it?

At our offices in Arnhem. Address: Meander 501, 6825 MD Arnhem, The Netherlands

What does it cost?

Nothing!

Language

The presentations will be made in Dutch.

Interested?

  • If you want to attend our TechTalk, you must register for the event on Meetup. We only have space for 60 participants! So register soon to avoid missing out on the SIDN TechTalk.

  • Join our Meetup group for news of all our upcoming TechTalks.

Interested?

If you want to attend our TechTalk, you must register for the event on Meetup. We only have space for 60 participants! So register soon to avoid missing out on the SIDN TechTalk on 15 April.

Join our Meetup group for news of all our upcoming TechTalks.

Registration/cancellation

The SIDN TechTalk is a free event. However, organising it does cost money. If you've registered but find you can't make it, please let us know promptly, so we can give your place to someone else.