.us

.us is the Internet country code top-level domain for the United States. It was established in February 1985. Registrants of.us domains must be U.S. citizens, residents, or organizations –... Wikipedia

• Introduced:  February 15, 1985
• TLD type:  Country code top-level domain
• Status:  Active
• Registry:  Registry Services, LLC (owned by GoDaddy)
• Sponsor:  National Telecommunications and Information Administration
• Intended use:  Entities connected with the United States
• Actual use:  Used in the United States but not as widely as gTLDs, U.S. state, tribal, and local governments (declining in favor of.gov), Some American businesses as alternative to.com, Domain hacks (e.g. del.icio.us)
• Registration restrictions:  Connection with the U.S. requirement can be enforced by challenge but rarely is
• Structure:  2nd-level registrations allowed, originally only 3rd- or 4th-level registrations in a complex hierarchy
• Documents:  RFC 1480, USDoC agreements with Neustar, Other policies
• Dispute policies:  usTLD Dispute Resolution Policy (usDRP)
• Website:  about.us
• DNSSEC:  Yes
• Data source:  DuckDuckGo