Who can register a .mil domain?
Who may register
Restricted to the US Department of Defense. Not sold by registrars.
What it costs
No price for .mil in the table we track
(Porkbun). That means we have no figure, not that the extension
cannot be bought — several restricted extensions are sold only through
accredited registrars in their own country, and some are not sold to the public
at all.
Source
Read from the registry's own policy page: https://www.iana.org/domains/root/db/mil.html. Read on 2026-07-29.
Is a .mil name free?
Availability comes from the registry itself over RDAP, with a WHOIS fallback where a registry publishes no RDAP service. A throttled or unreachable registry is reported as unconfirmed rather than available. It is the one wrong answer that costs somebody money.
You can check from a terminal or from an assistant instead:
curl https://dotsweep.com/check/yourname.mil