All TLDs / .se
What is .se?
Registry operator: The Internet Infrastructure Foundation — per the IANA root database.
Source: IANA root zone database, checked August 23, 2026.
Is .se a real domain extension?
Yes — .se is a real top-level domain. It's present in the official IANA DNS root zone, which is the authoritative list of every live TLD on the internet.
Who runs .se?
.se is operated by The Internet Infrastructure Foundation, the registry responsible for Sweden, per the IANA root database.
What is .se used for?
.se is the extension tied to Sweden. Many country codes are also used generically for branding when the letters spell something useful.
Can anyone register a .se domain?
Generally yes — .se is open through accredited registrars, though some country registries require local presence or ID. Availability of a specific name depends on whether it's already taken.
.se and Sweden
.se is the country-code top-level domain assigned to Sweden, administered by the registry The Internet Infrastructure Foundation.
.se, formerly branded as .SE, is the country code top-level domain (ccTLD) for Sweden. It is operated by The Swedish Internet Foundation, but domains must be registered through one of the approved registrars. The Internet Foundation in Sweden is managed on the basis of its charter of foundation and its statutes. The Foundation is managed by a board of directors, whose decisions are executed by the executive management.
Source: Wikipedia — .se (CC BY-SA)
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