Domain WHOIS Lookup (Registrar, Dates, Name Servers)

{
  "type": "object",
  "required": [
    "domain"
  ],
  "properties": {
    "domain": {
      "type": "string",
      "description": "Domain name (e.g. example.com)"
    }
  },
  "additionalProperties": false
}

{
  "type": "object",
  "properties": {
    "domain": {
      "type": "string",
      "description": "The queried domain name, echoed back."
    },
    "created": {
      "type": "string",
      "description": "Domain creation date, ISO 8601. Absent entirely on an unregistered domain."
    },
    "expires": {
      "type": "string",
      "description": "Domain expiration date, ISO 8601. Absent entirely on an unregistered domain."
    },
    "updated": {
      "type": "string",
      "description": "On a registered domain, the domain's own last-updated date, ISO 8601. On an unregistered domain, instead the WHOIS database's own 'last update' timestamp with trailing registry-report punctuation (e.g. '2026-09-07T08:57:18Z <<<'); this field's meaning and exact format both shift depending on registration status."
    },
    "raw_whois": {
      "type": "string",
      "description": "The full raw WHOIS text response from the registry, verbatim. Present on both a registered domain (registrar record, dates, name servers, status codes, registrar abuse-contact block, terms of use) and an unregistered domain (a short 'No match' notice plus the same boilerplate terms of use)."
    },
    "registrar": {
      "type": "string",
      "description": "The registrar's WHOIS SERVER hostname (e.g. 'whois.markmonitor.com'), not the registrar company's display name. Absent entirely on an unregistered domain."
    },
    "name_servers": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "The domain's authoritative name servers, lowercased. Absent entirely on an unregistered domain (no array, not an empty one)."
    }
  },
  "description": "The WHOIS record.",
  "additionalProperties": true
}