How Failover Works
Failover uses health checks to monitor the status of the systems 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 endpoint 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 endpoint.
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 or hostnames 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.
