What Is DNS SOA (Start of Authority)?

October 17, 2023

DNS SOA (Start of Authority) is a DNS resource record that defines info about a DNS zone. The SOA record is present at the beginning of a DNS zone file and contains both administrative and technical details about the zone (domain admin's email address, primary name server, the time of the last domain update, the domain serial number, zone refresh timers, etc.).

Anastazija
Spasojevic
Anastazija is an experienced content writer with knowledge and passion for cloud computing, information technology, and online security. At phoenixNAP, she focuses on answering burning questions about ensuring data robustness and security for all participants in the digital landscape.