Rdap

Registration Data Access Protocol (RDAP) is a successor to WHOIS protocol. Pros JSON format Supports HTTPS Unicode support Uniform schema unlike whois which differs from registry to registry Cons Rate limiting Authentication Tiered (restricted?) access Bootstrap URLs DNS curl -Ls https://data.iana.org/rdap/dns.json RIRs curl -Ls https://data.iana.org/rdap/ip.json ccTLDs curl -Ls https://data.iana.org/rdap/cctld.json Examples Querying using web browser For querying using web browser, use https://client.rdap.org/ Querying using CLI Domain curl -Ls https://rdap.org/domain/example.in | jq . ASN curl -Ls https://rdap.org/autnum/16276 | jq . IP Address curl -Ls https://rdap.org/ip/1.1.1.1 | jq . Entity curl -Ls https://rdap.org/entity/APNIC | jq .