{
    "api": "YAML JSON TOON Database",
    "version": "1.0.0",
    "format": "json",
    "dataset": {
        "slug": "dns-fundamentals",
        "title": "DNS Fundamentals",
        "description": "Common DNS record types and their purposes.",
        "summary": "The DNS record types that appear in everyday zone files: address records, aliases, mail routing, delegation, text records and zone authority, plus the reverse-lookup, service-location, certificate-authority and DNSSEC types operators meet next. Each row says what the record maps and what it is used for.",
        "use_when": [
            "You are configuring or debugging DNS for a domain, mail setup or certificate issuance.",
            "You need to know which record type answers a given question."
        ],
        "caveats": [
            "Answers depend on the record type queried; a name can have several types at once.",
            "A CNAME cannot coexist with other record types at the same name, which is why the zone apex needs special handling."
        ],
        "related": [
            "network-ports-reference",
            "tcp-ip-protocol-suite"
        ],
        "category": "Networking",
        "category_slug": "networking",
        "tags": "networking,dns,records",
        "view_count": 0,
        "entry_count": 16,
        "fields": [
            {
                "section": "data",
                "field": "type",
                "type": "string",
                "example": "A"
            },
            {
                "section": "data",
                "field": "description",
                "type": "string",
                "example": "Maps a hostname to an IPv4 address."
            }
        ]
    },
    "data": [
        {
            "type": "A",
            "description": "Maps a hostname to an IPv4 address."
        },
        {
            "type": "AAAA",
            "description": "Maps a hostname to an IPv6 address."
        },
        {
            "type": "CNAME",
            "description": "Canonical name alias for another domain."
        },
        {
            "type": "MX",
            "description": "Mail exchange record for email routing."
        },
        {
            "type": "NS",
            "description": "Authoritative name server for the domain."
        },
        {
            "type": "TXT",
            "description": "Arbitrary text often used for verification and SPF."
        },
        {
            "type": "SOA",
            "description": "Start of authority record with zone metadata."
        },
        {
            "type": "PTR",
            "description": "Maps an IP address back to a hostname, used for reverse DNS."
        },
        {
            "type": "SRV",
            "description": "Locates a service by naming its host and port, with priority and weight."
        },
        {
            "type": "CAA",
            "description": "Lists the certificate authorities permitted to issue certificates for the domain."
        },
        {
            "type": "DNSKEY",
            "description": "Holds a public key used to verify DNSSEC signatures for the zone."
        },
        {
            "type": "DS",
            "description": "Delegation Signer: a hash of a child zone's key placed in the parent to chain DNSSEC trust."
        },
        {
            "type": "RRSIG",
            "description": "A DNSSEC signature over a set of records."
        },
        {
            "type": "HTTPS",
            "description": "Service binding for HTTPS: advertises alternative endpoints and supported protocols such as HTTP/3 (SVCB family)."
        },
        {
            "type": "NAPTR",
            "description": "Name Authority Pointer: rewrite rules used in telephony number mapping and some service discovery."
        },
        {
            "type": "TLSA",
            "description": "Associates a TLS certificate or key with a service name, used by DANE."
        }
    ]
}