This is specifically for our customers' vpn DNS records. Most of our customers have 2 network circuits. We have setup a vpn A record that points to a the primary circuit and a vpn2 A record that points to the secondary circuit.

Instead of that solution. we are looking for a way to change IPs on the vpn record dynamically or failover the vpn record's IP to the active circuit in case one of the circuits experiences an outage.

Which service, DNS Failover or Dynamic DNS service that you offer best meets that situation and can do that seamlessly and automatically?