Quick Lookup
Every domain checked three ways — DNS, the registry (RDAP), and WHOIS. You get all three answers separately, because they do not always agree, and when they disagree that is usually the interesting part. Most WHOIS sites take one domain; this one takes 3.
Up to 3 domains at once — separate them with
commas or put one per line. Paste a full URL if it is easier —
https://example.com/page works.
DNS and registry (RDAP) checks are free and unlimited-ish.
Live WHOIS needs a free account — WHOIS runs over a raw
port-43 connection and registries rate-limit us by IP, so we cannot make
those calls for anonymous visitors without risking the lookups everyone
else depends on. Signed out, you still get any WHOIS answer we already
have cached.
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Recent lookups
Stored in this browser only — never sent to us, and
cleared by the button above. Last 25.