DNS Zone File Generator

Use this tool to rapidly generate a properly formatted, standards-compliant DNS zone file for your domain name. It outputs a raw text file in the strict RFC 1035 BIND format, which is the industry standard format understood by almost every major DNS server software (including BIND9, PowerDNS, and NSD) and heavily utilized by massive web hosts.

This generator is perfect for system administrators provisioning new authoritative nameservers, or for migrating large numbers of DNS records between different hosting providers that require a raw zone file import.

How it works

A DNS Zone File is a plain-text document that contains the authoritative mapping of all DNS records for a single domain name (the "zone"). Managing these files manually can be tedious and highly error-prone because a single misplaced period or incorrectly formatted SOA (Start of Authority) record can break your entire website.

The SOA Record: This tool automatically builds a mathematically correct SOA record, which acts as the header of the zone file. It generates a standardized serial number based on today's date (format YYYYMMDD01), which is critical for telling secondary nameservers that the file has been updated and they need to pull the latest changes.

Formatting Strictness: The BIND format is incredibly strict about syntax, specifically regarding trailing dots. If you create a CNAME pointing to example.com without a trailing dot (example.com.), the DNS server assumes it is a relative path and will erroneously append your domain to it again (resulting in example.com.yourdomain.com). This generator automatically handles all absolute path formatting and spacing to guarantee your file compiles without syntax errors.

Frequently asked questions