Get an authentication code (UDAI)?
A UDAI code is the key to your domain name. You need to protect your UDAI, and make sure that your provider does not share your UDAI code with anyone else. Learn how to generate or request a UDAI code for your domain name.
If you have already received a UDAI code from your registrar, you can test it using our UDAI tool
What is a UDAI?
A UDAI (Unique Domain Authentication Identifier) is a unique eight-digit code needed to transfer a .nz domain name from one domain name provider (registrar) to another. Some registrars also use UDAIs to authorise a change of domain name holder.
The term UDAI is only used for the .nz registry. Other countries still require a unique code to transfer a domain name, but refer to it as an Authorisation code or EPP code. UDAIs once generated expire after 30 days.
UDAIs are sometimes only able to be used once. It’s best to check with your domain name provider if you need to use your UDAI for more than one transaction.
Step 1: Check to see if you can generate a UDAI directly
Check your registrar to see if you can generate a UDAI for your domain name directly.
Some registrars or domain name providers offer automated UDAI generation. This function is usually accessed by logging into your registrar account and going to your dashboard.
Step 2: Check your WHOIS registration details
Check your WHOIS registration details using our WHOIS Lookup. Enter the domain name and click Lookup to see your domain name details. Make sure they are up to date.
Step 3: Request a UDAI from your Registrar
To get a UDAI code, you may need to email or call your registrar or domain name provider. They may also ask for evidence to prove that you are the domain name holder.
Registrars will only send a UDAI to the email address on the registration record. If you have problems with requesting a UDAI, please contact us and attach any previous correspondence.
You can test any UDAI code you have received via the following UDAI check tool