RDAP

The standard way to look up registration data (glossary)registration data The information kept about a domain and its owner. Full definition of registration data for domain names (glossary)domain name A readable internet name made of labels separated by dots. Full definition of domain name and IP addresses (glossary)IP Internet Protocol The internet's basic rules for sending data, using numeric addresses for every connected device. Full definition of IP. It sends structured, machine-readable answers over HTTPS (glossary)HTTPS Hypertext Transfer Protocol Secure The encrypted version of the protocol web browsers use to load pages. Full definition of HTTPS and can give different users different levels of access. Since 28 January 2025, RDAP has been the definitive source of gTLD (glossary)gTLD generic top-level domain A top-level domain not tied to a country, run under ICANN contracts. Full definition of gTLD registration data, replacing WHOIS (glossary)WHOIS The legacy lookup service for domain registration data, now replaced by RDAP for gTLDs. Full definition of WHOIS.