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  • The details registered about me/my company are incorrect or out of date.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

What are internet standards?

The internet is a global network of web servers and other systems. For all those systems to communicate with each other effectively, we need international agreements about things such as how data will be exchanged. Those agreements are called internet standards or protocols. Modern and secure internet standards make the internet more trustworthy and enable continued growth. We therefore promote their use. This page provides information about how we do that, plus advice on how to implement the standards yourself.

Read the latest news about internet standards

Read more cybersecurity news

The internet standards we promote

  • IPv6

    IPv6 is a modern protocol with much more address space, so that every device and every user can get its own IP address.

    Read more about IPv6

    Read more IPv6

  • DNSSEC

    DNSSEC adds a digital signature to an internet domain.

    Read more about DNSSEC

    Read more DNSSEC

  • E-mail security standards

    Help tackle phishing and malware and keep mail traffic safe.

    Read more about the email standards

    Read more E-mail security standards

Implementing modern standards

We can help you implement modern standards on your own technical infrastructure. Check out our hands-on guides to using DNSSEC and e-mail security standards in combination with popular name server and mail server software.

Hands-on: DNSSEC validation

Hands-on: DNSSEC signing

Hands-on: implementatie van SPF, DKIM, DMARC en DANE

Every organisation can benefit from using modern internet standards

The importance of making the internet more secure is underscored by news stories on a daily basis. And the limited nature of the IPv4 address space has been causing problems for decades. But where do you begin? After all, infrastructure providers and operators have limited budgets and capacity. To provide an overview of the interrelationships and relative priorities, we have developed a maturity model of the key internet standards. Do you plan to stay old school, or make your organisation future-proof? Read more about the maturity model.

Maturity model for internet standards
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We promote the use of internet standards

Modern internet standards make the internet more trustworthy and enable continued growth. We therefore promote their use in a variety of ways.

  • We incentivise .nl registrars to adopt the standards for the benefit of end users.

  • We share our knowledge of modern internet standards with registrars through the SIDN Academy, webinars and SIDN TechTalks.

  • We publish practical guides to help organisations get to grips with implementation of the standards.