The flags for the NAPTR record, which can indicate various properties (e.g., "U" for URI, "S" for service).
The order of the NAPTR record, used to determine the sequence in which records should be processed.
The preference of the NAPTR record, used to determine the order of preference among multiple records.
The regular expression for the NAPTR record, which can be used to transform the domain name.
The replacement string for the NAPTR record, which can be used to replace the domain name.
The service type for the NAPTR record, indicating the type of service provided (e.g., "SIP+D2U").
Represents the data for a DNS NAPTR (Naming Authority Pointer) record.