Diagnostics

System → Site Health → Diagnostics presents technical evidence for the current Site without requiring access to the host-wide server log.

Runtime

Review PHP support, required extensions, filesystem access and the current Site runtime state.

Background processing

Diagnostics reports whether supported background work can start automatically and shows the latest relevant processing outcome when a job cannot advance.

Package integrity

Integrity checks show whether the installed Core and supported packages match trusted release information. Use the dedicated package-integrity view for changed-file details and recovery actions.

Use Errors for recent failures

Open Site Health → Errors to correlate recent runtime, Admin, update and failed-job errors. Diagnostics describes the current environment; Errors describes recent failures.