The time interval (in seconds) before the zone expires if it cannot be refreshed.
The email address of the domain administrator (formatted as a string with a dot instead of an '@').
The minimum time-to-live (TTL) for the zone, indicating how long the record should be cached by resolvers.
The name server for the domain.
The time interval (in seconds) before the zone should be refreshed.
The time interval (in seconds) before a retry should be attempted if the refresh fails.
The serial number of the SOA record.
Represents the data for a DNS SOA (Start of Authority) record.