|Introduced||16 August 1995|
|TLD type||Country code top-level domain|
|Registry||NIC.sm (Telecom Italia San Marino)|
|Sponsor||Telecom Italia San Marino|
|Intended use||Entities connected with San Marino|
|Actual use||Some use in San Marino; occasional use as a domain hack|
|Registration restrictions||Companies limited to 50 domain registrations per year; individuals and other organizations to one registration in total|
|Structure||Names can be registered directly at second level|
|Registry website||Telecom 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.