.se is the Internet country code top-level domain (ccTLD) for Sweden. The top domain is operated by IIS, but domains must be registered through one of the approved registrars.
.SE domain extension ranks #27 among all domain extensions, and #17 among all country-code extensions (ccTLDs). Currently, there are 1.4 Million registered .se domain names. The Internet Infrastructure Foundation is the registry of .se extension.
The oldest (still exists) .se domain name is enea.se, and it was registered on 07 April 1983.
The most popular .se domain name is google.se. Its worldwide rank is 1739.