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  • The details registered about me/my company are incorrect or out of date.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

Meet SIDN at Holland Strikes Back

  • Friday 23 September 2016

Hardly a week passes by without another security incident making the headlines. Websites are attacked and brought down; government services are stalled; sensitive information is hacked. Against that background, the third edition of Holland Strikes Back on 4 October poses two key questions: what forms of cyberattack could hit your organisation, and what can you do to protect against them? Holland Strikes Back aims to provide visitors with the insight, knowledge and tools they need to defend themselves against cybercrime.

Holland Strikes Back Alertonline.nl

DDoS attacks on the DNS root

During the first part of the event, a number of cybersecurity threats will be examined. One of the threats considered will be DDoS attacks on the DNS Root. Dr Ricardo de Oliveira Schmidt from the University of Twente will talk about the groundbreaking research into such attacks that the university and SIDN Labs have been doing in response to the increasing incidence.

Cybersecurity for .nl

For the second part of the programme, the focus switches to ways of working together to head off cybersecurity threats. Giovane Moura, Data Scientist at SIDN Labs, will describe what we are doing at SIDN to protect the .nl domain against cybercrime. Hit this link to see the full programme.

Alert Online

Holland Strikes Back is an initiative by NLnet and DHPA, together with their partners in DINL (AMS-IX, DDA, DHPA, ISPConnect, NLnet, Netherlands ICT, SIDN, Surfnet and the RA). It forms part of Alert Online 2016, a join initiative by the Dutch government, business community and scientific community, designed to increase awareness of on-line security.