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  • The details registered about me/my company are incorrect or out of date.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

SIDN present at Zorg & ICT 2025

Making healthcare companies and organizations aware of the importance of online brand monitoring

Impression of the Healthcare & ICT trade fair floor
  • Thursday 24 April 2025

From 8 to 10 April, we had a stand at the annual healthtech trade fair Zorg & ICT, which took place at the Jaarbeurs Utrecht. The event is the top opportunity for care professionals, IT specialists and tech partners to share knowledge about ICT and the care sector’s digital transformation. Our presence was intended to raise awareness amongst businesses and other organisations in the sector of the importance of online brand protection.

The Netherlands’ biggest healthtech event

The 3-day fair is the biggest of its kind in the Netherlands, attracting more than 10,000 visitors a year. The central theme this year was ‘ICT as a solution for staff shortages’. Numerous sessions and presentations also tackled a variety of topical issues, such as data availability, artificial intelligence (AI), remote care and cybersecurity.

Z-CERT-SIDN sectoral analysis

The background to our involvement at Zorg & ICT was the growing number of incidents involving domain names linked to care-sector organisations. Concern about the problem prompted us to team up with Z-CERT to perform an analysis of nearly 3,000 care-sector domain names. The results revealed various examples of malicious domain name use, which we highlighted at the trade fair.

SIDN BrandGuard in the care sector

SIDN’s stand was in the zone for organisations active in the field of cybersecurity. Visitors were able to check whether their domain names were potentially being used for malicious purposes – an opportunity that dozens of them took advantage of. We also received a lot of questions about domain name-related disputes and best practices. Many people visiting the stand mentioned the domain name security survey we carried out with Z-CERT.

Presentation on digital security and brand protection

Martijn Sanders, our product owner for SIDN BrandGuard, made a presentation on digital security and brand protection in the care sector. In it, he emphasised the importance of proactive domain name monitoring to prevent phishing and reputational damage. He also explained how SIDN BrandGuard can help organisations with the early detection of brand abuse. Another important point made by Sanders was that collaboration between care institutions and tech partners is vital if digital resilience is to be reinforced and the integrity of care sector data assured.

Next year

This was the first time that we’d been involved with a sector-specific event. Zorg & ICT 2025 proved to be a valuable platform for knowledge-sharing and innovation in the care sector. The next edition is scheduled for 14 to 16 April 2026.

The SIDN team at the stand at Zorg & ICT 2025

The SIDN team at the stand on the trade fair floor of Zorg & ICT 2025.

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