Glossary
Registrar
Transfer lock
A registrar-level status (clientTransferProhibited) preventing a domain moving to another registrar until it is cleared. Free, near-universal, and frequently left off.
Defined in RFC 5731 §2.3.
Where this appears
The lessons that use this term, and what each is for.
Domain Security FundamentalsLocks, contacts and expiryAudit a domain’s registrar-level controls and name what is missing.DNS Security PractitionerReading lock stateDetermine from RDAP which locks a domain actually has, and which it only appears to.DNS Security PractitionerThe account outranks every recordRank registrar-account controls against zone-level ones, and defend the ordering.Domain Security PractitionerThe agency nobody can contactRecover control of a domain administered by a party that no longer answers.