DNS Record Lookup (A, AAAA, MX, NS, TXT, SPF, DMARC)

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

{
  "type": "object",
  "properties": {
    "code": {
      "type": "string",
      "description": "An error code present only when the lookup failed (e.g. the domain does not resolve). Absent on a successful lookup."
    },
    "domain": {
      "type": "string",
      "description": "The domain looked up, echoed back."
    },
    "has_spf": {
      "type": "boolean",
      "description": "Whether an SPF policy was detected among the TXT records."
    },
    "message": {
      "type": "string",
      "description": "A human-readable error message present only when the lookup failed. Absent on a successful lookup."
    },
    "a_records": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "IPv4 addresses from the domain's A records."
    },
    "has_dmarc": {
      "type": "boolean",
      "description": "Whether a DMARC policy record was detected."
    },
    "mx_records": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "exchange": {
            "type": "string",
            "description": "The mail server hostname."
          },
          "priority": {
            "type": "number"
          }
        },
        "additionalProperties": true
      },
      "description": "Mail exchange records, each with a priority and a target hostname."
    },
    "ns_records": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "Nameserver hostnames for the domain."
    },
    "txt_records": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "Raw TXT record strings -- domain-verification tokens, SPF policy text, and other free-text entries as published; not parsed into separate fields."
    },
    "aaaa_records": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "IPv6 addresses from the domain's AAAA records."
    },
    "dmarc_record": {
      "type": "string",
      "description": "The raw DMARC policy TXT record string when has_dmarc is true, e.g. 'v=DMARC1; p=reject; rua=mailto:...'. May include the domain owner's own published aggregate-report contact address as part of its public DNS policy. Shape when no DMARC record exists was not observed on either fixture captured."
    },
    "cname_records": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "CNAME record targets. Observed as an empty array on the one fixture captured (google.com has no CNAME at its apex) -- a populated shape was not observed."
    }
  },
  "description": "The DNS record set for the looked-up domain, as returned at routing.responseResultPath ($.output). A domain that does not resolve shapes to `{ code, message }` instead -- see verification.notes.",
  "additionalProperties": true
}