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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NEWS

2019-05-08

RedDog 1.4.0 has been released! Several changes had been made:

• Support The February-2019 version of the gTLD-RDAP profile.
• Add four new configuration flags.
• Support for draft-hollenbeck-vcarddav-icann-rdap-extensions-01
• Remove LDH_name in domain and nameserver tables in reference implementation.
• Several bug fixes.

The documentation has been updated as well, we encourage you to read it.