RDAP domain lookup

Structured registration data straight from the registry's RDAP server: registrar, IANA ID, creation and expiry dates, status, name servers and DNSSEC.

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Need this at scale?

The same lookup is one API call at 1 credit / request (one credit is $0.0003 to $0.001 depending on volume), with failed requests free.

cURL

curl "https://api.gridlode.com/v1/domain/rdap?domain=github.com" \
  -H "Authorization: Bearer $GRIDLODE_KEY"

Get 1,000 free credits RDAP Lookup API docs

FAQ

What is RDAP?

The Registration Data Access Protocol is the IETF standard (RFC 9082/9083) that replaced WHOIS for gTLDs. It returns JSON with consistent field names, which makes it ideal for automation.

Which TLDs are supported?

Every TLD that publishes an RDAP server in the IANA bootstrap registry, over 1,200 of them. For TLDs without RDAP, use the WHOIS lookup.