We’ve added a multi-domain tool to Primary DNS that allows updates for simple record types to be easily changed for multiple zones. For example, this feature can be used as a “find and replace” to update an IP addresses or its TTL wherever a match is found (within selected domains). Record types supported are: A, AAAA, MX, NS, TXT, SPF, CNAME, and PTR. To access this feature click on the “Update Multiple Zones” button on the Primary DNS page in the account control center.