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Instantly find domain registration details — owner, registrar, creation date, expiry countdown, nameservers, EPP status codes, and DNSSEC status. Also supports IP WHOIS via ARIN, RIPE, APNIC, LACNIC, and AFRINIC.
You can also paste a full URL — the tool strips the protocol and path automatically.
A WHOIS lookup queries the global domain registration database to return publicly available information about a domain name — including who registered it, when it was created, when it expires, which registrar manages it, and which nameservers it uses. The WHOIS protocol dates to 1982 and is now being replaced by RDAP (Registration Data Access Protocol), the modern ICANN-mandated standard that returns structured JSON data over HTTPS. This tool uses RDAP first and falls back to legacy WHOIS for country-code domains that have not yet implemented it.
Since GDPR took effect in 2018, most domain registrars now offer WHOIS privacy services that replace the registrant's personal name, email, address, and phone number with generic proxy information. This protects domain owners from spam, harassment, and identity theft. Even when privacy is enabled, technical registration data — registrar name, creation date, expiration date, nameservers, EPP status codes, and abuse contact — remains publicly visible and is always shown in our results.
EPP (Extensible Provisioning Protocol) status codes describe the current state of a domain registration. "clientTransferProhibited" means a registrar lock is in place — this is a normal, healthy security measure preventing unauthorized transfers. "clientHold" means DNS resolution has been suspended by the registrar — the website and email will not work. "pendingDelete" means the domain is in its final deletion countdown and cannot be recovered or renewed. "redemptionPeriod" means the domain has expired and entered a 30-day recovery window, usually with a high redemption fee. This tool shows every status code with a plain-English explanation so you know exactly what each one means.
WHOIS is the original domain lookup protocol from 1982 — it queries servers on TCP Port 43 and returns unstructured plain text. RDAP (Registration Data Access Protocol) is the modern replacement mandated by ICANN for all generic top-level domain (.com, .org, .net, .io, etc.) registries. RDAP returns structured JSON over HTTPS, handles privacy compliance better, and supports internationalized domain names. Some country-code domains like .ca, .de, and .uk have not yet implemented RDAP and still respond on Port 43 — our tool falls back to WHOIS automatically for these and shows which protocol answered your query.
Domain WHOIS answers "who registered this domain name and when?" IP WHOIS answers "which organization was assigned this IP address block?" IP address assignments are managed by Regional Internet Registries — ARIN covers North America, RIPE covers Europe, APNIC covers Asia-Pacific, LACNIC covers Latin America, and AFRINIC covers Africa. Enter any IPv4 or IPv6 address in this tool to see the organization that holds the assignment, the CIDR block, the assigned network name, country, ASN, and abuse contact.
The expiry warning badge appears when a domain is approaching its renewal deadline. An amber badge appears when the domain expires within 90 days — it is worth noting and scheduling a renewal. A red badge appears when it expires within 30 days — renewal is urgent. The exact number of days remaining is always shown alongside the expiration date regardless of whether a warning badge appears. This feature is useful for IT administrators monitoring domains they manage, or for domain investors tracking when a target domain may lapse and become available for registration.
Yes. WHOIS data is publicly available for all registered domains. Anyone can query it — there is no requirement to own the domain. WHOIS lookups are routinely used by IT administrators verifying DNS delegation, security researchers investigating suspicious domains, brand protection teams identifying unauthorized registrations, and domain investors researching expiry dates. The only data that may be hidden is personal contact information protected by WHOIS privacy services or GDPR redaction — technical data such as registrar, dates, and nameservers is always public.
Not sure what a WHOIS field or status code means? These definitions explain every piece of registration data this tool returns — what it is, why it matters, and what to look for.
Disclaimer: QuickITTools.com and EnterPlanet LLC strive to make our tools as accurate as possible. WHOIS and RDAP data is retrieved in real time from authoritative registries and is displayed as returned. Contact information may be redacted per GDPR and registrar privacy policies. We do not store or log any WHOIS query data.