Registration data access protocol (RDAP):
What is RDAP?
Starting on August 26, 2019, the Registration Data Access Protocol (RDAP) will be a new protocol available that provides WHOIS details for generic top-level domains (gTLDs) (e.g., .com, .net).
RDAP is a contractual requirement both registries and registrars are required to implement and will serve as an eventual replacement for WHOIS lookups. RDAP, like WHOIS as we know today, enables users to view current registration data for a domain name.
gTLD registries and registrars are required to implement an RDAP service by 26 August 2019. ICANN org continues to work with gTLD registries and registrars to implement a service-level agreement and registry reporting requirements for RDAP.