PageSequenceMonitor and HttpPostMonitor are able to do POST requests. It would be useful to enhance PSM to be able to set HTTP headers. This kind of monitor/heartbeat would allow us to integrate with on-call tools, e.g. OpsGenie, Pagerduty, Hot Potatoe and others.

Here some API examples from tools who support heartbeats:

• https://docs.opsgenie.com/docs/heartbeat-api

• https://docs.hotpotato.nz/api.html