The Swedish Internet Foundation is an independent, private foundation that works for the positive development of the internet. We are responsible for the Swedish top-level domain .se and the operation of the top-level domain .nu, and our vision is that everyone in Sweden wants to, dares to and is able to use the internet. You can easily search for available domain names below.

Search available domain name

Enter the domain name you want to register or get information about and click "Search". If the domain name is free, just select the reseller with which you wish to register the domain name.

Due to the protection of personal data, some information is hidden during a search. For domain holders who are private individuals/individual companies, no contact information is displayed. Click here to read more about how you request access to the information that is hidden.

About us

Who we are and how to contact us.

This is us

The Swedish Internet Foundation is an independent, private foundation that works for the positive development of the internet. Read more about us here.


You can find contact and address information for The Swedish Internet Foundation here.


You can find the latest press information from The Swedish Internet Foundation here.


Learn more about how to see if a domain is free, and how to register a .se or .nu domain.

How to register a domain name

It's easy to register your own domain name! In this guide, we tell you how to do it. Start with checking if the name you want to register is available!

Dispute resolution

If you believe that someone else has registered a .se or a .nu domain to which you are entitled, you can appeal the allocation of the domain name retroactively.

Dispute resolution

The "first come, first serve" principle applies when allocating .se and .nu domain names.

Dispute resolution for .se

As of June 26, 2017, ADR for the toplevel domain .se will be administered by WIPO (World Intellectual Property Organization).

Dispute resolution for .nu

Occasionally, disputes arise about who is entitled to register a domain name. For such disputes, the .nu domain name employs the Uniform Domain-Name Dispute-Resolution Policy – UDRP.


For new and existing registrars, The Swedish Internet Foundation has a separate website, the Registrar Web.

Become a registrar for .se and .nu

The Swedish Internet Foundation works in accordance with a business model called the registry-registrar model, which is an internationally established standard for top-level domains.


Registrars.se is the industry organization for the registrars of The Swedish Internet Foundation, the only association in the Swedish registrar and web hosting industry.

Tech articles

If you want to deepen your knowledge of Registry Services work, you will find lots of technical articles on everything from DNSSEC to xmlint.