All TLDs / .sm
What is .sm?
Source: IANA root zone database, checked October 18, 2026.
Yes — .sm 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.
.sm is operated by Telecom Italia San Marino S.p.A., the registry responsible for San Marino, per the IANA root database.
.sm is the extension tied to San Marino. Many country codes are also used generically for branding when the letters spell something useful.
Generally yes — .sm 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.
.sm and San Marino
.sm is the country-code top-level domain assigned to San Marino, administered by the registry Telecom Italia San Marino S.p.A..
.sm is the Internet country code top-level domain (ccTLD) for San Marino.
Source: Wikipedia — .sm (CC BY-SA)