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Introduced16 August 1995
TLD typeCountry code top-level domain
StatusActive (Telecom Italia San Marino)
SponsorTelecom Italia San Marino
Intended useEntities connected with  San Marino
Actual useSome use in San Marino; occasional use as a domain hack
Registration restrictionsCompanies limited to 50 domain registrations per year; individuals and other organizations to one registration in total
StructureNames can be registered directly at second level
Dispute policiesNone
Registry websiteTelecom Italia San Marino

.sm is the Internet country code top-level domain (ccTLD) for San Marino.

The domain is occasionally used as a domain hack for sites ending in the -ism suffix.