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Domain Availability

GET /v1/domain/availability1 credit / requestcache 60 min

Registry-level check of whether a domain is registered, via RDAP (WHOIS fallback for TLDs without RDAP). Premium or reserved names can still be unavailable at registrars.

Query parameters

domain
string · required
Domain to check, e.g. gridlode.com.
max_age
integer
Accept a cached answer up to this many seconds old, billed at 50%.

Response data fields

  • available · true when the registry has no registration for the name.
  • method · rdap, or whois (server) for TLDs without RDAP.
  • checked_at · Time of the registry check.

Example

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

Try it without code on the Domain Availability API page.