TLD Specifications

.rio , .rio.br
Registration period
1-10 years
Renewal period
1-10 years
Allowed character length
1 - 63 characters
Allowed characters
a-z, 0-9, -MUST NOT contain two consecutive hyphens in the third and fourth character positions and MUST NOT start or end with a hyphen.
TLD supports
Transfer locks possible
Renewal on transfer
Transfer time
5 days
Authcode length
8 - 32 characters
Handle updates
Preconfigured DNS
Allowed Nameservers
2 - 13
Autorenew Grace Period
35 days
Deletion Timeframe
35 days after expiration date
Redemption Period
30 days
Eligibility Policy

  • Names under .rio are only for usage by the city council of Rio.
  • A .rio domain owner needs to be either:
    • Legal entity incorporated in Brazil, with headquarters, branch, franchisee or licensee located in the city of Rio de Janeiro, with active record in “Cadastro Nacional das Pessoas Jurídicas – CNPJ/MF” of the Finance Ministry.
    • Individual with fixed address in the city of Rio de Janeiro, with active record in “Cadastro das Pessoas Físicas – CPF/MF” of the Finance Ministry.
  • A domain owner that loses eligibility to a .rio domain is subject to termination of DNS publication for the domain, and to domain removal, no matter of the domain expiration date.
  • Two pre-configured nameservers are required
  • No trustee service is allowed; abuse can lead to the deletion of the domain name by the registry
  • These restrictions and additional information can be found in the registration policies
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