Monitors & detections
Use HEAD when headers are enough
Make a lightweight check without requesting response content.
Reviewed
Choose HEAD deliberately
In Request, select HEAD when your endpoint supports it and the response headers/status are enough to assess availability. Not every endpoint handles HEAD in the same way as GET.
Remove body-dependent rules
HEAD cannot send a request body or validate response text and JSON rules. Turn off those rules before saving a HEAD configuration. If you need to inspect a readiness field, use a suitable body-returning method instead.
Inspect the first result
Save and run a manual check. Review the actual response code against Healthy HTTP codes. A method-not-allowed response may mean you should use GET, not broaden healthy codes to accept that error.