In domain name management, AUTH-ID (also known as AUTH-INFO) is a crucial security element required when transferring a domain between registrars. This code serves as authorization for the transfer and ensures that only the rightful domain owner can initiate the process.

What Is an AUTH-ID (AUTH-INFO) Code?

AUTH-ID (or AUTH-INFO) is a unique security code assigned to each domain. It is required when transferring a domain from one registrar to another to prevent unauthorized transfers. Similar to a password, it is known only to authorized individuals, such as the domain owner or administrative contact.

What Is the Purpose of AUTH-ID in Domain Management?

AUTH-ID is essential for:

• Transferring a domain between registrars – the new registrar requires this code to complete the transfer.
• Verifying transfer authorization – the code confirms that the transfer request is legitimate.
• Ensuring domain security – it prevents unauthorized domain hijacking or misuse.

How to Obtain the AUTH-ID Code for Your Domain?

Each registrar has its own procedure for retrieving the AUTH-ID, but the general steps include:

1. Logging into your registrar’s control panel – most registrars allow users to generate the AUTH-ID within their account.
2. Requesting the code from the registrar – if the code is not available online, you may need to contact customer support.
3. Verifying domain ownership – some registrars require additional verification, such as email confirmation or MojeID authentication.
4. Receiving the AUTH-ID – the code is typically sent via email to the domain owner's registered contact address.

How to Use AUTH-ID for Domain Transfers?

Once you have your AUTH-ID, the transfer process generally follows these steps:

1. Submitting the AUTH-ID to the new registrar – during the domain transfer request, you must enter the code.
2. Initiating the transfer process – the new registrar requests approval from the current registrar.
3. Approving the transfer – in most cases, the domain owner needs to confirm the transfer via email or another method.
4. Completing the transfer – after verification, the domain is successfully moved to the new registrar.

AUTH-ID Validity and Security Measures

• AUTH-ID may be single-use or have a limited validity period – some registrars generate a new code for each transfer, while others allow reuse.
• Never share your AUTH-ID publicly – this is sensitive information, and unauthorized access could result in domain theft.
• Regularly check your domain’s contact details – ensure that your registered email address is up to date, as the AUTH-ID is usually sent there.

Which Domains Use AUTH-ID?

AUTH-ID is a standard mechanism for transferring domains under most gTLDs (generic top-level domains like .com, .net, .org) and some ccTLDs (country-code domains, including .cz, .eu, etc.). However, the process may vary depending on the domain registry.

AUTH-ID for .CZ Domains

For .CZ domains, managed by the CZ.NIC registry, AUTH-ID is referred to as AUTH-INFO. This code can be obtained through the domain registrar or directly from CZ.NIC’s MojeID system if the domain is linked to a MojeID account.

AUTH-ID (or AUTH-INFO) is a critical security feature in domain management. Proper use and secure storage of this code are essential to prevent unauthorized transfers. If you plan to transfer your domain, follow your registrar’s instructions and ensure that you retrieve the code well in advance.