Free · live registry data · no login

RDAP Lookup

The modern replacement for WHOIS, straight from the registry.

How it works

RDAP lookup: the registry record that replaced WHOIS, in full

RDAP (Registration Data Access Protocol) is the structured, HTTPS-based successor to WHOIS, mandatory for every generic TLD since 2025. This tool queries the authoritative RDAP server for a domain and shows the complete response: every event with its date, each entity and its role (registrar, registrant, abuse contact), status codes, nameservers, DNSSEC data, the server's notices, and the raw JSON so developers can see exactly what came back.

Results appear here after you click Query RDAP.

How this works

1
Bootstrap to the right server
The IANA bootstrap registry maps each TLD to its RDAP base URL; rdap.org does that redirect for us over HTTPS.
2
Fetch the JSON
The registry answers with an application/rdap+json document containing events, entities, status, nameservers and secureDNS.
3
Show it all
We summarise the fields people care about, decode the status codes, and print the raw JSON unchanged.

Frequently asked questions

What is RDAP and how is it different from WHOIS?: RDAP is an IETF standard (RFC 7480-7484, 9082, 9083) that returns registration data as JSON over HTTPS instead of free-form text over port 43. It supports proper internationalisation, redirects to the authoritative server, and tiered access for law enforcement. Since 28 January 2025 ICANN no longer requires gTLD registrars to run WHOIS at all.
Why do the registry and registrar RDAP records differ?: For thin registries such as .com and .net, the registry record only has registrar, dates, status and nameservers; contact data lives at the registrar's RDAP server, which the registry links to. We follow the registry response; the 'links' line in the raw block shows the registrar URL if you want the fuller record.
Can I use RDAP in my own code?: Yes. Call https://rdap.org/domain/example.com (or the registry's base URL from the IANA bootstrap file) with an Accept: application/rdap+json header. It is free and needs no key, but public servers rate-limit, so cache results and back off on HTTP 429.
Which extensions do not support RDAP?: All gTLDs (.com, .net, .org, .io, .ai, .app and the new ones) do. Several ccTLDs lag behind, including .de, .ng, .es and .it, which still only serve legacy WHOIS or a web form. For those the tool reports that no RDAP record exists.
What does 'rdapConformance' mean?: It lists the RDAP extensions the server implements, for example rdap_level_0 (the base spec), icann_rdap_response_profile_1 and redacted. It is useful for developers who need to know which optional fields to expect.

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