Traditional automation often installs a heavy ACME client on every server and hopes each host is configured consistently. That pattern breaks at fleet scale: drift, opaque failures, and credential sprawl become normal.
Certinite centralizes orchestration: policy, visibility, and CA interaction live in the control plane. Edge servers run a small agent that executes only what must run locally (file writes, store imports, IIS or web-server binding).
Control plane vs. data plane
Think of the dashboard and API as the control plane (what should happen, for which tenant, on which timeline). Agents are the data plane (what actually touches the certificate store and web server bindings on a specific machine).