Domain RDAP Lookup, WHOIS Replacement
Pricing
Pay per event
Domain RDAP Lookup, WHOIS Replacement
Registration date, expiry, registrar, nameservers and DNS provider for any domain, from the registries themselves over RDAP. Finds the right registry for you across 1,200 top level domains. No key and no login.
Pricing
Pay per event
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Developer
Gregory Bolshakov
Maintained by CommunityActor stats
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Total users
1
Monthly active users
a day ago
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Domain RDAP Lookup
Registration date, expiry, registrar, nameservers and DNS provider for any domain, taken from the registries themselves.
Why this is not a WHOIS scraper
RDAP is what replaced WHOIS. It is structured JSON, it is official, and it needs no key. The awkward part is that there is no single endpoint: every top level domain is served by its own registry, and you have to know which. This Actor loads IANA's own map and routes each domain to the registry that owns it.
What you get
registeredAt, expiresAt, updatedAt, the registrar name, the status flags, the
nameservers, and dnsProvider, which is the nameserver suffix. That last one is usually
the answer people actually wanted: whether a company is on Cloudflare, on AWS, or running
its own.
updatedAt is the last real change to the record. Registries also publish a "last update of
RDAP database" timestamp that changes every time you look, and this Actor does not report
that as a change, because it is not one.
Two answers that are not errors
A domain nobody owns comes back as a row with registered set to false. That is a real
answer and it is what makes this usable for checking availability across a list.
A top level domain with no RDAP server is reported by name in the run summary. This is
not a rare edge: measured 2026-08-29, IANA lists 1,200 top level domains with a server, and
.io and .de are not among them. Nobody can look those up this way, and a tool that
silently returns nothing for them is telling you the domain is free when it is not.
Notes
The same domain twice in a pasted list is looked up and billed once. Five lookups run in parallel by default, which is polite to registries that are often small operations.
Access
Free and no key. The IANA map is fetched once per run.
