Primary DNS with GoDaddy, Secondary with Total Uptime:
If you wish to keep your primary DNS hosting at GoDaddy and use Total Uptime DNS for replicating them (secondary DNS), you need to have GoDaddy premium DNS and follow the steps in this article on their website:
https://www.godaddy.com/help/enable-secondary-dns-with-godaddy-nameservers-as-primary-nameservers-23910
Primary DNS with Total Uptime, Secondary with GoDaddy:
If you wish to do the reverse, that is keep your primary DNS hosting at Total Uptime and use GoDaddy for secondary DNS, follow this support article: https://www.godaddy.com/help/enable-secondary-dns-with-godaddy-nameservers-as-secondary-nameservers-23911
Either one can be a little tricky, but it really boils down to ensuring you add the IP addresses of the primary provider within the config of the secondary provider so they can pull the zone. Additionally, the primary provider will need to permit replication to the secondary IPs. Lastly, implementing a NOTIFY is important too for rapid replication of changes when you make them.
If you have any questions or just need more help, contact us! We’re here to help you. Customers can create a ticket for assistance at any time at support.totaluptime.com.