This guide concerns domain names with the .se extension.

Preamble

• The .se domains are managed by Internetstiftelsen i Sverige (IIS), the official organization that governs domain names in Sweden.
• They were introduced in 1986 and it was during the 2000s that they gained popularity because their suffix could be used for words like "clo.se", "sen.se", etc.
  • However, a Swedish court rejected the claim of the artist Prince who was seeking the domain prince.se, which was registered for local use (sale of jams, related to the Swedish word prins prins).

Change the owner of a .se domain

To change the owner of a .se domain, the procedure defined by the IIS requires completing a specific form.

In the form, the IIS IDNO (ID Number) field is a key requirement:

• For Swedish citizens: enter the social security number (Personnummer), 800101-1234 for example.
• For Swedish companies: use the company registration number (Organisationsnummer) 556123-4567 for example.
• For foreign citizens or non-Swedish companies: enter an identification number such as a passport number, an ID card, or an equivalent for your country.

This serves to authenticate the owner and to prevent disputes or fraudulent use of the domain. The change may take a few days, depending on how quickly the documents are verified.