Those are registry status added on by the registrar.
Client-update-prohibited is set so the client cannot update the domain status themselves, they have to do it through the registrar.
Client-delete-prohibited is set so that the domain cannot be deleted. It must be renewed or transferred.
Client-Renew-Prohibited is set so that the domain cannot be renewed by the client. It must be done through the registrar
Client-Xfer-Prohibited is set so that the domain cannot be transferred by the client. It must be done through the registrar.
来源
http://www.freewebspace.net/forums/archive/index.php/t-2193905.html