advancedGeneral
SOA Record (Start of Authority)
The first DNS record in a zone file — contains administrative data about the domain's DNS zone.
An SOA (Start of Authority) record is the first record in a DNS zone file, containing administrative information about the zone: the primary nameserver, the responsible administrator's email, the zone serial number, and timing parameters for zone transfers and caching. Every DNS zone must have exactly one SOA record. The serial number increments with each zone update, signaling secondary nameservers to refresh.