Uptime

Internal monitoring has a blind spot: if the enclave goes fully dark, the thing watching it goes dark too, and reports nothing. Uptime closes that gap with a watcher that lives outside — on separate premises, off Hetzner (see Ground › Premises › Contabo) — and simply asks, from the far side, whether the enclave is answering.

It’s the simplest watch and the most important kind of independent: liveness confirmed from somewhere that can’t fail at the same moment. What it checks and how often is described here; the host it stands on is in Premises, and the package that runs it is in Software.