Starting with 2025, IISE Registry is no longer requiring documents for Ownerchange, instead they are requiring the ICANN Ownerchange process. The process has been enabled, and it is built at CentralNic Reseller in the same way as for any other gTLD. Details can be found here.
Please find in the following a set of the most commonly used standard API commands in order to register, modify, renew, and transfer a domain name.
command = AddDomain
domain = yourdomain.nu
period = (INT)
ownercontact0 = (CONTACT)
admincontact0 = (CONTACT)
techcontact0 = (CONTACT)
billingcontact0 = (CONTACT)
nameserver0 = (NAMESERVER)
nameserver1 = (NAMESERVER)
X-NU-IIS-IDNO = (TEXT)
X-NU-IIS-VATNO = (TEXT)command = ModifyDomain
domain = yourdomain.nucommand = TradeDomain
domain = yourdomain.nu
ownercontact0 = (CONTACT)
X-NU-IIS-IDNO = (TEXT)
X-NU-IIS-VATNO = (TEXT)command = RenewDomain
domain = yourdomain.nu
period = (INT)
expiration = (INT)COMMAND = DeleteDomain
DOMAIN = yourdomain.nucommand = TransferDomain
domain = yourdomain.nu
action = REQUEST
auth = (TEXT)command = ModifyDomain
domain = yourdomain.nu
x-request-authcode = 1
Starting June 1st, 2024, auth-codes can only be set by the registry. To request a new auth-code, please submit a ModifyDomain command with
New auth-codes have the format detailed below:
TLD-expire date-registrar-unique token
NU-230506-TESTAB-8fb1afcd-fc92-4809-a77f-b8641b7723ab
Please be aware that the whole string is needed as auth code.
command = RestoreDomain
domain = yourdomain.nu| X-NU-IIS-IDNO | Personal identification number, corporate identity number or registration designation in a governmental register. For contacts located in Sweden a valid Swedish ID number is necessary (e.g.: 123456-1234) |
| X-NU-IIS-VATNO | Valid VAT ID for companies. |
Any natural person or legal entity with a personal identification number or corporate identity number, or that can be identified via a registration designation in a register maintained by a governmental authority, or by an organization exercising state authority, may apply for registration of a domain name under the top-level domain .nu. For foreign domain holders, a unique identification number can be used instead.
Valid IDN languages are languages regarding ISO-8859-1, Western European languages, with the exception of the Dutch "ij" ligature
The following IDN scripts are supported by .nu.
Provide the LANGUAGE TAG corresponding to your desired IDN within the AddDomain command as X-IDN-LANGUAGE extension.
Get more information of "IDN tables", which represent permitted code points (letters) allowed for Internationalised Domain Name registrations in particular registries on IANA Repository of IDN Practices.
We domains
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The owner change process has adapted the FoA procedure, where an email will be sent to the current and future owner of the domain, who have to approve the owner change. If no agreement is given, the trade request expires after 10 days.