Does anyone have a suggestion on how to do alerting if a host (in this case, windows server) goes offline? I just want an alert telling me that host X is offline or not responding.

Assuming if host doesn’t send any metrics when it’s offline you can update alert condition: https://signoz.io/docs/alerts-management/metrics-based-alerts/#step-2-define-alert-conditions Check more options -> Send a notification if data is missing for [X] mins