Information for RDAP Users
The Registration Data Access Protocol (RDAP) enables users to access domain name registration data. It was created as an eventual replacement for the WHOIS protocol. RDAP was developed by the technical community in the Internet Engineering Task Force (IETF).
RDAP is a protocol that delivers registration data like WHOIS, but its implementation will change and standardize data access and query response formats.
In the short term, RDAP will not replace web-based WHOIS. Based on current policies and agreements, ICANN accredited registrars and gTLD registries will be required to implement RDAP in addition to port 43 WHOIS and web-based WHOIS.
RDAP is a new protocol for accessing registration data in a structured way. In its basic form, it is not intended to offer a "human-friendly" view like most websites would. However, the structure allows additional services to be built on top. ICANN org has set up a website that uses RDAP and presents the registration data in a "human-friendly" way.
ICANN's prototype RDAP web client.
These RDAP clients support domain name queries to registries and registrars with RDAP servers. Please note that inclusion of these links does not constitute or imply ICANN's endorsement or recommendation. Please contact the external sites for answers to questions regarding their content.
- ICANN's prototype RDAP web client
- NicInfo (ARIN also has a Boostrap Server).
For further information, contact Global Support.