Zone File
Zone File Lookup
Generate a BIND-format zone file for any domain by querying its public DNS records.
Enter a domain above to generate its zone file
About this tool
What is a DNS zone file?
A text file in BIND format that lists all DNS records for a domain: A, AAAA, MX, TXT, CNAME, NS, SOA, and more. It is the standard format used to export or migrate DNS configuration between providers.
Why is the zone file incomplete?
Mailvry queries a fixed list of known record types and common subdomain prefixes. Records for custom subdomains won't be detected. A full AXFR zone transfer from your DNS provider gives a complete picture.
What is an SOA record?
Start of Authority — the first record in a zone file. It identifies the primary nameserver, the responsible email address (encoded as a name), and zone parameters like serial number, refresh interval, and default TTL.
What is a CAA record?
Certification Authority Authorization. A DNS record that restricts which certificate authorities can issue SSL/TLS certificates for your domain, preventing unauthorized certificate issuance.