Extensible Provisioning Protocol—the standardized language registrars and registries use to talk to each other. Think of it as the API that actually moves your domain around, locks it, unlocks it, and changes contacts. EPP commands are how a registrar tells the registry "transfer this domain" or "update the nameservers." It's defined in RFC 5730 and its extensions. Why it matters: EPP is where the real control lives. Your registrar's web panel is just a pretty wrapper around EPP calls. If you want to move a domain, the registry checks the EPP authcode (also called transfer key or authorization code). If the domain is transfer-locked via EPP, nothing moves until that lock drops. Some registries are aggressive about EPP security; others less so. Offshore registries often run looser EPP implementations—faster transfers, fewer friction points. At bunkerdomains, EPP authcodes are generated on signup and available immediately; you own your exit.
lifecycle
EPP
The protocol registrars use to provision, lock, transfer, and manage domains at the registry level.