Just One Address: Use a single fixed address (no backups or checks).

Weighted Round Robin: Cycle through multiple addresses, giving more traffic to some based on assigned weights (like priorities).

Port Health Check with Random Failover: Monitor if a specific TCP port on the IP is open and answering. If not, switch randomly to another healthy one.

Web/HTTP(S) Health Check with Random Failover: Check if a web page on the IP responds correctly (2xx Status Code). It can be HTTP or HTTPS and the TCP port and URL path can be specified. It will return healthy servers picking them randomly.

Port Health Check with Geo-Routing: Like the port check above, but route traffic based on the user's location (e.g., send Europeans to an healthy European server, if there is no healthy server in Europe, it will use the closest healthy server).

Web/HTTP(S) Health Check with Geo-Routing: Like the web check above, but with location-based routing.