Ask HN: What is the simple way to ensure internal services stay up?

My server runs a core loop that must do an iteration at least once a minute. If it fails to do an iteration, I should be notified.

What's the easiest way to do this? Seems like I can either: 1. ping a service like healthchecks.io at the start of a loop or 2. expose some HTTP endpoint indicating whether the loop is running on time

Not sure if both are equivalent