.us domain availability checker
The .us domain is a country-code top-level domain (ccTLD) for United States, operated by Registry Services, LLC and introduced in 1985.
Check whether any .us domain is available, with bulk lookups and WHOIS records for taken names. Type just the name and Naked Whois appends .us automatically.
About .us
.us is the country-code TLD for the United States, delegated in 1985 in the original IANA root assignment. It has been managed under contract with the National Telecommunications and Information Administration (NTIA), with the operator role passing through several commercial registries over the years.
Unlike most major ccTLDs, .us enforces a nexus requirement: registrants must be US citizens, US permanent residents, US-based organizations, or foreign entities with a bona fide presence in the US. Privacy/proxy registration is restricted on .us domains, with the registrant's contact information generally required to be publicly available.
Adoption has been limited compared to ccTLDs of similar-sized countries; the dominance of .com in the US market never left .us much room to grow. It sees use by state and local government entities, US-specific small businesses, and some advocacy groups that want to signal a US nexus.
Notable quirks
US nexus requirement: registrants must be US persons or have a bona fide US presence. Standard WHOIS privacy is restricted compared to most ccTLDs.