About .rio domains

About .rio domains

.RIO is a generic top-level domain (gTLD) delegated in the DNS root zone. The registry operator responsible for .RIO is listed by IANA as Empresa Municipal de Informática SA - IPLANRIO. Anyone can typically register a .RIO name through an accredited registrar, subject to the registry’s registration policy and ICANN consensus policies.

The domain name rio is a top-level domain (TLD) for Rio de Janeiro in the Domain Name System of the Internet. On 27 February 2014, ICANN and Empresa Municipal de Informática SA – IPLANRIO entered into a Registry Agreement under which Empresa Municipal de Informática SA – IPLANRIO operates the rio TLD. It was officially launched in 2015.

Who can register .rio domains?

Eligibility is defined by the registry operator and its registrars. Most gTLDs are open to anyone worldwide. Many ccTLDs are also open globally; some require local presence, citizenship, or trademark rights. Always confirm current policy with the registry or your registrar.

Registration restrictions

Character rules below follow common ICANN LDH conventions. Individual registries and registrars may impose extra eligibility, length, or residency rules.

Length

1 – 63 characters (label before .rio)

Can use

Letters (a–z), numbers (0–9), and hyphens (not first/last or consecutive in restricted cases)

Cannot use

Special characters (e.g. & # @) in standard LDH labels

IDNs

Varies by registry — check IDN support with the registry or your registrar

Features

Operational features (privacy, parking, protection) are registrar-level, not defined by the IANA root zone record.

Registry information

Sponsor / manager

Empresa Municipal de Informática SA - IPLANRIO

Registration services

https://nic.rio/

RDAP server

https://rdap.gtlds.nic.br/