Master DNS Zone
Master (Primary DNS) Zone
The Master Zone in the DNS server is the read or write copy of the DNS database. This means that whenever a new DNS record is added to the DNS database either automatically or manually, it is actually written in the master zone of the DNS server. The records in the Master zone can be managed only from our interface.
How to add Master Zone in ClouDNS?
How to add Master DNS Zone in ClouDNS - Step by Step: