EPP protocol

The registrars communicate with the Registry using the EPP protocol (RFC 5730) with extensions for individual objects. The extensions are slightly modified versions of the standard specifications for domains (RFC 5731) and contacts (RFC 5733).

The FRED contains unique extensions for nssets and keysets.

Beside the standard commands, there are further auxiliary functions, such as information about credit or bulk list operations.

EPP communication is secured by the standard login-and-password authentication together with the verification of a client SSL certificate.

To ease EPP communication, the FRED distribution contains a Python client library and a command-line client application.