How Failover Works
Failover uses health checks to monitor the status of the IP address(es) in your records. Health
checks
run every 2-4 minutes from multiple monitoring locations.
A failover event will only occur if two of our monitoring nodes report your primary IP address
as
down. In that case, we will run a quick health check for your first backup
system. If it is available, we will update the record to point to your first backup IP address.
If that one goes down, we’ll check the second backup system and update the record. You can set
up to four backup IP addresses in a failover record.
We will continue to monitor your primary endpoint, even after a failover event has occurred.
When it comes back online, we will automatically “failback” traffic to your primary.
