- Admin-, Tech- and Billing- contact have to be a natural person
- Since 2010 it is no longer possible to change the contact information of the domain holder trough a registrar.
- The domain holder has to login at the registry with his NIC handle (can be found in whois information). The password can be recovered here: https://www.nic.es/sgnd/contacto/passRecoverInicializar.action?tContacto.nic. The domain holder will then receive an email with his credentials.
- The email address of the domain holder and admin contact can only be changed by the respective contact at the registry directly.