Real ICMP echo to confirm a host is reachable at the network layer — independent of any service running on it.
A PING monitor resolves your target to a public IP and sends a single ICMP echo request via the system ping binary. If a reply comes back within 5 seconds, the host is UP; otherwise DOWN.
ICMP says nothing about whether your application is responding. Pair with an HTTP monitor for full coverage. Some networks block ICMP entirely — if the host is reachable on HTTP but PING fails, prefer the HTTP check.
curl https://monitorah.com/api/v1/monitors \
-X POST \
-H "Authorization: Bearer mon_live_…" \
-H "Content-Type: application/json" \
-d '{
"name": "My PING check",
"type": "PING",
"target": "example.com"
}'