WHOIS Lookup
Look up domain registration details using the RDAP protocol — the modern, IETF-standard replacement for WHOIS. See registrar, status, registration & expiry dates, nameservers, and DNSSEC status.
About WHOIS & RDAP
WHOIS is the original protocol for querying domain registration data — who registered a domain, when it expires, and which registrar manages it. It has been the backbone of domain transparency since the early internet, but it uses an unstructured text format that's hard to parse reliably.
RDAP (Registration Data Access Protocol) is the IETF-standard replacement for WHOIS, defined in RFC 7480–7484. It returns structured JSON over HTTPS, supports internationalized data, and provides standardized access control — making it more reliable, secure, and machine-readable.
This tool queries the RDAP bootstrap service at rdap.org, which automatically routes your query to the authoritative RDAP server for the domain's TLD. All major gTLDs and many ccTLDs now support RDAP.
The domain name to look up — registration data is maintained by domain registrars and registries
Registration Data Access Protocol — the IETF standard successor to WHOIS, using RESTful JSON over HTTPS
RDAP bootstraps to the correct registry server (e.g., Verisign for .com, PIR for .org) based on the TLD
JSON response contains domain status, events (registration/expiry dates), entities (registrar/registrant), and nameservers
Key fields extracted and displayed: registrar, creation date, expiry date, nameservers, DNSSEC status, and domain statuses
Spec: RFC 7480-7484 (RDAP), RFC 3912 (WHOIS), ICANN RDAP Profile