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RedDog is a free and open source Java implementation of an RDAP server.

RDAP (Registration Data Access Protocol) is a successor of WHOIS—a protocol used for querying information regarding Internet resources (such as domain names, IP addresses and autonomous system numbers).

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Version 1.0 has been released! This version contains the basic funtionality for an RDAP Server defined in RFCs 7480,7481,7482 and 7483.

A demo server will be released later next week. We are also working on a migration tool to help you to migrate your data from your WHOIS server to your RDAP server.