DNS zone file

What is a DNS zone file?

A DNS zone file is a text file that contains the mapping of domain names to IP addresses and other resources within a specific domain namespace. It is used by DNS servers to translate human-readable domain names into machine-readable IP addresses. The file includes various records, such as A (address) records, MX (mail exchange) records for email servers; and CNAME (canonical name) records for aliasing one domain name to another. DNS zone files always follow a standardized format and syntax.