Follow How a DNS zone file is obtained for a domain name will depend on the registrar and/or host for your domain. Use the appropriate instructions below to get your DNS zone files.
Some registrar services The following domain registrars/hosts provide a method to download or export your DNS zone file.
Instructions for GoDaddy
Instructions for 1and1
Instructions for Google
Instructions for MediaTemple
Instructions for Names.com
Some domain registrars do not offer a straightforward option of exporting or downloading a DNS Zone file but, if the host/registrar provides a Cpanel for domain management it is possible through your cpanel.Cpanel. Hosts/Registrars known to provide management through a Cpanel include:
Bluehost
Domain.com
HostGator
...