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What is EPP / Auth code?

An auth code (EPP code) is a unique password for a domain that the current registrar provides, required to authorize a transfer to a new registrar.

An authorization code, also called an EPP code, auth-info code or transfer key, is a secret string associated with a domain. It proves that the person requesting a registrar transfer is authorized by the registrant.

The name comes from EPP, the Extensible Provisioning Protocol registrars use to talk to registries. You get the code from your current registrar’s dashboard or support team, then enter it at the new registrar when starting the transfer.

Treat the auth code like a password. Do not share it publicly, and only give it to a buyer through a trusted escrow process. Some ccTLDs use different transfer mechanisms that do not involve an auth code.

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Related terms

Domain privacy
Domain privacy hides the registrant's personal contact details from public WHOIS/RDAP lookups by substituting proxy or redacted information.
Premium domain
A premium domain is one priced above standard rates, either by the registry for desirable names or by an owner selling it on the aftermarket.
Reserved domain
A reserved domain is a name a registry has withheld from public registration, such as two-letter codes, geographic names or names kept for itself.
IDN (Internationalized Domain Name)
An IDN is a domain containing non-ASCII characters, such as accented letters, Cyrillic, Arabic or Chinese, encoded in DNS using punycode.
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