• A text file that describes a Domain Name System (DNS) zone. A DNS zone is a subset, often a single domain, of the hierarchical domain name structure of the DNS. The zone file contains mappings between domain names and IP addresses and other resources, organized in the form of text representations of resource records (RR). A zone file may be either a DNS master file, authoritatively describing a zone, or it may be used to list the contents of a DNS cache. Zone files were first introduced in 1987. ← Wikipedia

1. Previous term: Zombie cookie
2. Next term: Zone offset
3. Random term: Web IDL