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IDN capable: Yes
Handle Updates: Yes
Registration Period: 1-10 years
Autorenew Grace Period: 35 days
Deletion Timeframe: 35 days after expiration date
Registration System: Not-Realtime
WHOIS-Privacy: No
Registry: Registry
Dispute Policy: Policy


Zone Info


  • Letters and numbers
  • Hyphens ("-")

IDN Info

only Portuguese characters allowed for IDNs

Domain Registration

.RIO domains can be registered online through webinterface or API.

command              = AddDomain
domain               =
period               = 1
ownercontact0        = [owner handle]
admincontact0        = [admin contact]
techcontact0         = [tech contact]
billingcontact0      = [billing contact]
nameserver0          = [nameserver1]
nameserver1          = [nameserver2]

Please note: After a successful registration of the domain, it will be transfer locked from the registry for a period of 60 days. The verification of the tax number will be processed in non-realtime after the Golive of the TLD. A wrong tax number may result in the deletion of the domain!

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Domain Modification


Registrant changes for .RIO domains can be done online via API or web interface.

command              = ModifyDomain
domain               =
ownercontact0        = [new owner handle]

Although this transaction will be immediately processed if all policy requirements are met, the new registrant will be subject to verification with the tax authorities. If the taxpayer ID of the new registrant is not in good standing, the domain will be put into ServerHold status.

Domain Renewal

.RIO domains can be renewed through the webinterface or with the corresponding API command.

command    = RenewDomain
domain     =
period     = [renew period]
expiration = [current year of expiration]

Deletion Process

.RIO Domains can be deleted online through the Delete Command.

command = DeleteDomain
domain  =


  • Names under this TLD 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 domain expiration date.
  • Two pre-configured nameservers are required
  • No trustee service allowed; abuse can lead to the deletion of the domain name by the registry
  • Registration Policies.pdf


.RIO transfers are possible. Upon successfully transferring a domain, it is automatically renewed for one year. The registration period is extended by one year.

Transfer procedure

  • .RIO Transfers can either be done through the RRPproxy WebInterface or API.
command = TransferDomain
domain  =
action  = request
auth    = .....
  • After the transfer has been requested, our backend system sends a confirmation email to the Owner/Admin-C according to the WHOIS of the respective domain. In order to initiate the transfer successfully it is important, that this email is confirmed.
  • After confirmation the transfer is initiated through the official registry and the losing registrar will receive the transfer request.
  • The losing registrar will also send an email to the Owner/Admin-C. allowing him/her to deny the transfer. If you do not respond to the email of the losing registrar, then the transfer will get processed successfully after 5 days.
Attention.png If the Email-Address in the WHOIS is invalid, then the transfer cannot be processed.If this is the case, then kindly contact your current registrar and ask him to update the WHOIS information accordingly.

Transfer notes

  • A .RIO Domain Transfer must be initiated with a so-called Authorisation Code, which can be obtained from the current registrar through the owner or Admin-C of the domain.
  • Ensure that your respective domain does not have a lock-status (REGISTRAR-LOCK or HOLD). This can be seen in the WHOIS.
    If the domain is locked, then the owner can demand that the domain will be unlocked.
  • Please note that we are only allowed to initiate a gTLD transfer after confirmation of the "ICANN Form of Authorization" by the current registrant. The policies can be viewed under
  • After a successful transfer of the domain, it will be transfer locked from the registry for a period of 60 days.


  • The format for auth info requires a minimum length of 8 characters and a maximum length of 32 characters.
  • Additionally, auth info must contain at least one of each of the following three character types:
    • Alphabetic character:a-z; A-Z
    • Numeric character : 0-9
    • Special characters: !;<=$%?&@[()]*^+-,'-{.|/}:~

Transfer Time

A transfer takes 5 days to complete.


Restores are possible within 30 days upon deletion. A restore can be done via API command or via webinterface.

command = restoredomain
domain  =

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