All TLDs / .hm
What is .hm?
Source: IANA root zone database, checked October 18, 2026.
Yes — .hm 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.
.hm is operated by HM Domain Registry, the registry responsible for Heard, per the IANA root database.
.hm is the extension tied to Heard. Many country codes are also used generically for branding when the letters spell something useful.
Generally yes — .hm 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.
.hm and Heard
.hm is the country-code top-level domain assigned to Heard, administered by the registry HM Domain Registry.
.hm is the Internet country code top-level domain (ccTLD) of the Heard and McDonald Islands, uninhabited islands in the southern Indian Ocean under the sovereign control of Australia.
Source: Wikipedia — .hm (CC BY-SA)