[
  {
    "type": "A",
    "value": "1",
    "description": "a host address",
    "ref": "[RFC1035]"
  },
  {
    "type": "NS",
    "value": "2",
    "description": "an authoritative name server",
    "ref": "[RFC1035]"
  },
  {
    "type": "MD",
    "value": "3",
    "description": "a mail destination (OBSOLETE - use MX)",
    "ref": "[RFC1035]"
  },
  {
    "type": "MF",
    "value": "4",
    "description": "a mail forwarder (OBSOLETE - use MX)",
    "ref": "[RFC1035]"
  },
  {
    "type": "CNAME",
    "value": "5",
    "description": "the canonical name for an alias",
    "ref": "[RFC1035]"
  },
  {
    "type": "SOA",
    "value": "6",
    "description": "marks the start of a zone of authority",
    "ref": "[RFC1035]"
  },
  {
    "type": "MB",
    "value": "7",
    "description": "a mailbox domain name (EXPERIMENTAL)",
    "ref": "[RFC1035]"
  },
  {
    "type": "MG",
    "value": "8",
    "description": "a mail group member (EXPERIMENTAL)",
    "ref": "[RFC1035]"
  },
  {
    "type": "MR",
    "value": "9",
    "description": "a mail rename domain name (EXPERIMENTAL)",
    "ref": "[RFC1035]"
  },
  {
    "type": "NULL",
    "value": "10",
    "description": "a null RR (EXPERIMENTAL)",
    "ref": "[RFC1035]"
  },
  {
    "type": "WKS",
    "value": "11",
    "description": "a well known service description",
    "ref": "[RFC1035]"
  },
  {
    "type": "PTR",
    "value": "12",
    "description": "a domain name pointer",
    "ref": "[RFC1035]"
  },
  {
    "type": "HINFO",
    "value": "13",
    "description": "host information",
    "ref": "[RFC1035]"
  },
  {
    "type": "MINFO",
    "value": "14",
    "description": "mailbox or mail list information",
    "ref": "[RFC1035]"
  },
  {
    "type": "MX",
    "value": "15",
    "description": "mail exchange",
    "ref": "[RFC1035]"
  },
  {
    "type": "TXT",
    "value": "16",
    "description": "text strings",
    "ref": "[RFC1035]"
  },
  {
    "type": "RP",
    "value": "17",
    "description": "for Responsible Person",
    "ref": "[RFC1183]"
  },
  {
    "type": "AFSDB",
    "value": "18",
    "description": "for AFS Data Base location",
    "ref": "[RFC1183][RFC5864]"
  },
  {
    "type": "X25",
    "value": "19",
    "description": "for X.25 PSDN address",
    "ref": "[RFC1183]"
  },
  {
    "type": "ISDN",
    "value": "20",
    "description": "for ISDN address",
    "ref": "[RFC1183]"
  },
  {
    "type": "RT",
    "value": "21",
    "description": "for Route Through",
    "ref": "[RFC1183]"
  },
  {
    "type": "NSAP",
    "value": "22",
    "description": "\"for NSAP address",
    "ref": " NSAP style A record\""
  },
  {
    "type": "NSAP-PTR",
    "value": "23",
    "description": "\"for domain name pointer",
    "ref": " NSAP style\""
  },
  {
    "type": "SIG",
    "value": "24",
    "description": "for security signature",
    "ref": "[RFC4034][RFC3755][RFC2535][RFC2536][RFC2537][RFC2931][RFC3110][RFC3008]"
  },
  {
    "type": "KEY",
    "value": "25",
    "description": "for security key",
    "ref": "[RFC4034][RFC3755][RFC2535][RFC2536][RFC2537][RFC2539][RFC3008][RFC3110]"
  },
  {
    "type": "PX",
    "value": "26",
    "description": "X.400 mail mapping information",
    "ref": "[RFC2163]"
  },
  {
    "type": "GPOS",
    "value": "27",
    "description": "Geographical Position",
    "ref": "[RFC1712]"
  },
  {
    "type": "AAAA",
    "value": "28",
    "description": "IP6 Address",
    "ref": "[RFC3596]"
  },
  {
    "type": "LOC",
    "value": "29",
    "description": "Location Information",
    "ref": "[RFC1876]"
  },
  {
    "type": "NXT",
    "value": "30",
    "description": "Next Domain (OBSOLETE)",
    "ref": "[RFC3755][RFC2535]"
  },
  {
    "type": "EID",
    "value": "31",
    "description": "Endpoint Identifier",
    "ref": "[Michael_Patton][http://ana-3.lcs.mit.edu/~jnc/nimrod/dns.txt]"
  },
  {
    "type": "NIMLOC",
    "value": "32",
    "description": "Nimrod Locator",
    "ref": "[1][Michael_Patton][http://ana-3.lcs.mit.edu/~jnc/nimrod/dns.txt]"
  },
  {
    "type": "SRV",
    "value": "33",
    "description": "Server Selection",
    "ref": "[1][RFC2782]"
  },
  {
    "type": "ATMA",
    "value": "34",
    "description": "ATM Address",
    "ref": "\"[ ATM Forum Technical Committee"
  },
  {
    "type": "NAPTR",
    "value": "35",
    "description": "Naming Authority Pointer",
    "ref": "[RFC2915][RFC2168][RFC3403]"
  },
  {
    "type": "KX",
    "value": "36",
    "description": "Key Exchanger",
    "ref": "[RFC2230]"
  },
  {
    "type": "CERT",
    "value": "37",
    "description": "CERT",
    "ref": "[RFC4398]"
  },
  {
    "type": "A6",
    "value": "38",
    "description": "A6 (OBSOLETE - use AAAA)",
    "ref": "[RFC3226][RFC2874][RFC6563]"
  },
  {
    "type": "DNAME",
    "value": "39",
    "description": "DNAME",
    "ref": "[RFC6672]"
  },
  {
    "type": "SINK",
    "value": "40",
    "description": "SINK",
    "ref": "[Donald_E_Eastlake][http://tools.ietf.org/html/draft-eastlake-kitchen-sink]"
  },
  {
    "type": "OPT",
    "value": "41",
    "description": "OPT",
    "ref": "[RFC6891][RFC3225]"
  },
  {
    "type": "APL",
    "value": "42",
    "description": "APL",
    "ref": "[RFC3123]"
  },
  {
    "type": "DS",
    "value": "43",
    "description": "Delegation Signer",
    "ref": "[RFC4034][RFC3658]"
  },
  {
    "type": "SSHFP",
    "value": "44",
    "description": "SSH Key Fingerprint",
    "ref": "[RFC4255]"
  },
  {
    "type": "IPSECKEY",
    "value": "45",
    "description": "IPSECKEY",
    "ref": "[RFC4025]"
  },
  {
    "type": "RRSIG",
    "value": "46",
    "description": "RRSIG",
    "ref": "[RFC4034][RFC3755]"
  },
  {
    "type": "NSEC",
    "value": "47",
    "description": "NSEC",
    "ref": "[RFC4034][RFC3755]"
  },
  {
    "type": "DNSKEY",
    "value": "48",
    "description": "DNSKEY",
    "ref": "[RFC4034][RFC3755]"
  },
  {
    "type": "DHCID",
    "value": "49",
    "description": "DHCID",
    "ref": "[RFC4701]"
  },
  {
    "type": "NSEC3",
    "value": "50",
    "description": "NSEC3",
    "ref": "[RFC5155]"
  },
  {
    "type": "NSEC3PARAM",
    "value": "51",
    "description": "NSEC3PARAM",
    "ref": "[RFC5155]"
  },
  {
    "type": "TLSA",
    "value": "52",
    "description": "TLSA",
    "ref": "[RFC6698]"
  },
  {
    "type": "SMIMEA",
    "value": "53",
    "description": "S/MIME cert association",
    "ref": "[RFC8162]"
  },
  {
    "type": "Unassigned",
    "value": "54",
    "description": "",
    "ref": ""
  },
  {
    "type": "HIP",
    "value": "55",
    "description": "Host Identity Protocol",
    "ref": "[RFC8005]"
  },
  {
    "type": "NINFO",
    "value": "56",
    "description": "NINFO",
    "ref": "[Jim_Reid]"
  },
  {
    "type": "RKEY",
    "value": "57",
    "description": "RKEY",
    "ref": "[Jim_Reid]"
  },
  {
    "type": "TALINK",
    "value": "58",
    "description": "Trust Anchor LINK",
    "ref": "[Wouter_Wijngaards]"
  },
  {
    "type": "CDS",
    "value": "59",
    "description": "Child DS",
    "ref": "[RFC7344]"
  },
  {
    "type": "CDNSKEY",
    "value": "60",
    "description": "DNSKEY(s) the Child wants reflected in DS",
    "ref": "[RFC7344]"
  },
  {
    "type": "OPENPGPKEY",
    "value": "61",
    "description": "OpenPGP Key",
    "ref": "[RFC7929]"
  },
  {
    "type": "CSYNC",
    "value": "62",
    "description": "Child-To-Parent Synchronization",
    "ref": "[RFC7477]"
  },
  {
    "type": "ZONEMD",
    "value": "63",
    "description": "message digest for DNS zone",
    "ref": "[draft-wessels-dns-zone-digest]"
  },
  {
    "type": "SPF",
    "value": "99",
    "description": "",
    "ref": "[RFC7208]"
  },
  {
    "type": "UINFO",
    "value": "100",
    "description": "",
    "ref": "[IANA-Reserved]"
  },
  {
    "type": "UID",
    "value": "101",
    "description": "",
    "ref": "[IANA-Reserved]"
  },
  {
    "type": "GID",
    "value": "102",
    "description": "",
    "ref": "[IANA-Reserved]"
  },
  {
    "type": "UNSPEC",
    "value": "103",
    "description": "",
    "ref": "[IANA-Reserved]"
  },
  {
    "type": "NID",
    "value": "104",
    "description": "",
    "ref": "[RFC6742]"
  },
  {
    "type": "L32",
    "value": "105",
    "description": "",
    "ref": "[RFC6742]"
  },
  {
    "type": "L64",
    "value": "106",
    "description": "",
    "ref": "[RFC6742]"
  },
  {
    "type": "LP",
    "value": "107",
    "description": "",
    "ref": "[RFC6742]"
  },
  {
    "type": "EUI48",
    "value": "108",
    "description": "an EUI-48 address",
    "ref": "[RFC7043]"
  },
  {
    "type": "EUI64",
    "value": "109",
    "description": "an EUI-64 address",
    "ref": "[RFC7043]"
  },
  {
    "type": "TKEY",
    "value": "249",
    "description": "Transaction Key",
    "ref": "[RFC2930]"
  },
  {
    "type": "TSIG",
    "value": "250",
    "description": "Transaction Signature",
    "ref": "[RFC2845]"
  },
  {
    "type": "IXFR",
    "value": "251",
    "description": "incremental transfer",
    "ref": "[RFC1995]"
  },
  {
    "type": "AXFR",
    "value": "252",
    "description": "transfer of an entire zone",
    "ref": "[RFC1035][RFC5936]"
  },
  {
    "type": "MAILB",
    "value": "253",
    "description": "\"mailbox-related RRs (MB",
    "ref": " MG or MR)\""
  },
  {
    "type": "MAILA",
    "value": "254",
    "description": "mail agent RRs (OBSOLETE - see MX)",
    "ref": "[RFC1035]"
  },
  {
    "type": "*",
    "value": "255",
    "description": "A request for some or all records the server has available",
    "ref": "[RFC1035][RFC6895][RFC8482]"
  },
  {
    "type": "URI",
    "value": "256",
    "description": "URI",
    "ref": "[RFC7553]"
  },
  {
    "type": "CAA",
    "value": "257",
    "description": "Certification Authority Restriction",
    "ref": "[RFC6844]"
  },
  {
    "type": "AVC",
    "value": "258",
    "description": "Application Visibility and Control",
    "ref": "[Wolfgang_Riedel]"
  },
  {
    "type": "DOA",
    "value": "259",
    "description": "Digital Object Architecture",
    "ref": "[draft-durand-doa-over-dns]"
  },
  {
    "type": "TA",
    "value": "32768",
    "description": "DNSSEC Trust Authorities",
    "ref": "\"[Sam_Weiler][http://cameo.library.cmu.edu/][ Deploying DNSSEC Without a Signed Root.  Technical Report 1999-19"
  },
  {
    "type": "DLV",
    "value": "32769",
    "description": "DNSSEC Lookaside Validation",
    "ref": "[RFC4431]"
  },
  {
    "type": "Reserved",
    "value": "65535",
    "description": "",
    "ref": ""
  }
]