Type
Generic
All TLDs / .rio
Source: IANA root zone database, checked October 18, 2026.
Yes — .rio 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.
.rio is operated by Empresa Municipal de Informática SA - IPLANRIO, per the IANA root database.
As an open generic extension, .rio can be registered by anyone for any kind of website — there are no topic restrictions unless the registry sets a specific policy.
Yes — .rio is open for public registration through accredited registrars. Whether a specific name is available depends on whether someone already owns it.