FieldDescriptionLength (octets)
NAMEName of the node to which this record pertainsVariable
TYPEType of RR in numeric form (e.g., 15 for MX RRs)2
CLASSClass code2
TTLCount of seconds that the RR stays valid (The maximum is 2−1, which is about 68 years)4
RDLENGTHLength of RDATA field (specified in octets)2
RDATAAdditional RR-specific dataVariable, as per RDLENGTH

Resource record (RR) fields

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