WHOISWHOIS lookup · registrar, expiry, nameservers — all global TLDs
Real-time WHOIS lookup for registrar, expiry, nameservers, and RDAP data across every global TLD. Connects directly to authoritative registry servers.
WHOIS is the open internet protocol for querying domain registration data (RFC 3912); RDAP is its structured successor. This site connects directly to authoritative WHOIS and RDAP servers at every TLD registry and registrar so you can look up any domain's registrar, creation date, expiry, nameservers, DNSSEC and status — no registration required.
All TLDs Supported
Covers .com, .net, .org and all country-code domains
Real-time Queries
Direct WHOIS server connections for the latest data
Completely Free
No registration required, no query limits
WHOIS FAQ
What is WHOIS?
WHOIS is an open internet protocol — first defined in RFC 812 in 1982 and standardised today as RFC 3912 — used to query authoritative TLD registry and registrar servers for the registration data of a domain name (or IP address). A WHOIS lookup returns the registrar, creation and expiry dates, nameservers, DNSSEC status, and domain status. The term "WHOIS" refers both to the protocol itself and to the data returned by it. RDAP (RFC 7480–7484) is its structured HTTPS/JSON successor and is now offered by most TLDs; this site prefers RDAP and falls back to port-43 WHOIS only when a registry does not yet support it.
Are WHOIS lookup and domain lookup the same thing?
"Domain lookup" is the umbrella term for any way of inspecting a domain's registration data; WHOIS and RDAP are two of those protocols. WHOIS is the open ICANN-defined protocol used to query authoritative registry and registrar servers for domain registration data — registrar, creation and expiry dates, nameservers, DNSSEC, and domain status. This site also supports RDAP (Registration Data Access Protocol), which returns the same data as structured JSON consistently across TLDs.
Is this WHOIS lookup tool free?
Yes. The WHOIS lookup is completely free, with no registration and no daily quota. Type a domain or IP into the search box and hit Lookup.
What is the difference between WHOIS and RDAP?
WHOIS is a plain-text protocol on TCP port 43, in use since RFC 812 (1982); its output format varies by registry. RDAP, defined in RFC 7480-7484, is the modern successor: HTTPS-based, returns JSON, and is consistent across TLDs. This site prefers RDAP and falls back to port-43 WHOIS only when the registry does not offer RDAP.
Does WHOIS lookup support IP addresses?
Yes. Enter an IPv4 or IPv6 address and the tool switches to IP WHOIS, returning the ASN, network range (CIDR), owning organization, geolocation, and abuse contact.
Learn more about WHOIS
Dig into the WHOIS protocol, how lookups work, the move to RDAP, and how this site is built