What is .sm?
A little context on San Marino: the capital is City of San Marino, the main language is Italian, the currency is the Euro (EUR) and the international dialing code is +378. It's landlocked.
Next door on the map, you'll find .it for Italy.
IANA lists Telecom Italia San Marino S.p.A. as the manager of .sm, with an address in San Marino. The registry's website is https://www.nic.sm. ccTLD managers set their own policies — who can register, which second-level names exist, pricing to registrars — so those rules differ from country to country.
Under the hood, the root zone points to 4 name servers for .sm, 2 of them reachable over IPv6. There is no DS record for .sm in the root zone, which means the TLD is not DNSSEC-signed at the top level. Registration data is published over WHOIS (the WHOIS server is whois.nic.sm).
.sm FAQ
What country is .sm?
.sm is the country-code top-level domain for San Marino, in Southern Europe.
What is San Marino's domain extension?
San Marino's website extension is .sm, its country-code top-level domain. "SM" is its ISO 3166-1 alpha-2 code.
Who owns the .sm domain?
IANA lists Telecom Italia San Marino S.p.A. as the manager of .sm: it runs the registry and sets the rules for San Marino's ccTLD. Individual .sm names belong to whoever registers them.
Can I register a .sm domain from the US?
It depends on Telecom Italia San Marino S.p.A.'s policy. Some ccTLDs are open to anyone in the world, while others require a local address, company or trademark. Check the registry (https://www.nic.sm) or an accredited registrar before you buy.
Is .sm DNSSEC-signed?
No. As of our last data refresh there is no DS record for .sm in the root zone.
How do I look up who owns a .sm domain?
Query the registry's registration data service: the WHOIS server is whois.nic.sm. Many registrants use privacy services, so personal details may be hidden.
Sources
Data from IANA root zone version 2026102000. Last changed July 7, 2025. Spotted something wrong? Tell us.
