WHOIS / RDAP
RDAP is the structured successor to WHOIS. Paste a domain, an IP or an ASN and get its registration data: statuses, dates, registrar or organization, nameservers and DNSSEC.
Queries resolve via public RDAP (rdap.org and the authoritative registries) over HTTPS; they never pass through any redzilla server.
Look up a domain, IP or ASN to get started. Raw JSON · full RDAP response
Runs locally in your browser · no sign-up · nothing leaves your browser