WHOIS / RDAP Lookup

Find out when a domain was registered, when it expires, who the registrar is, and whether it's in any registry hold or redemption state. Uses RDAP, the modern WHOIS replacement.

What you’ll see

Expiry

The contract date. Includes “Nd remaining” or “expired N days ago” so you can spot a domain about to lapse — or one already past it but still resolving in the grace window.

Registrar

Who manages the registration — Markmonitor, GoDaddy, Cloudflare Registrar, etc. Useful when a domain is misbehaving and you need to know who to contact.

Status flags

Raw EPP codes — clientHold, redemption period, pendingDelete, transfer locks. Held domains get a destructive alert at the top so you don’t miss them.

DNSSEC

Whether the registry has the domain signed at the parent zone. A DNSSEC misconfiguration is one of the more common reasons a working DNS chain goes opaque to validating resolvers.

Frequently asked

What is RDAP, and how is it different from WHOIS?

RDAP is the modern replacement for WHOIS. Same registration data — registered date, expiry, registrar, status flags — but served as structured JSON instead of free-form text, with consistent fields across registries. ICANN required all gTLD registries to support it.

Why does my expired domain still work?

Most registrars give you a grace period (typically 30-45 days) after expiry before stopping resolution, and another redemption window (~30 days) where you can recover the domain at a higher fee before it returns to the public pool. The "expired" date here is the contract expiry — actual blackout usually trails it.

What do status flags like "clientHold" or "redemption period" mean?

These are EPP status codes set by the registrar or registry. clientHold and serverHold mean the domain is suspended — the nameservers are removed and it stops resolving. redemption period means the domain expired and is in the recoverable window. pendingDelete means the redemption window closed and the domain will be released soon.

Can I look up any TLD?

Most. Common TLDs (.com, .org, .net, .io, .dev, .ai, country-code TLDs) all have RDAP servers via the IANA bootstrap. A few obscure or older TLDs still only support legacy WHOIS, in which case the lookup returns no data and you can fall back to a traditional WHOIS client.

Is the data live, or cached?

Lookups go through rdap.org with our cache layer up to 24 hours. RDAP records change infrequently (registrations, transfers, renewals), so the cache window is appropriate. Status-flag transitions (e.g. into clientHold) propagate within the day.

RDAP is the registry-published replacement for WHOIS — same data, structured JSON, available without authentication for most TLDs. Lookups go through rdap.org, which redirects to the appropriate registry server (Verisign for .com/.net, PIR for .org, etc.). Cached up to 24 hours.