Logs
Live-tailing and searchable logs for builds and function invocations.
Your app's Logs tab brings build output and, for Next.js apps, runtime function invocations into a single view.
Sources
| Source | What it shows | Applies to |
|---|---|---|
| Build | Install/build command output for a deployment | Every app |
| Function | Each request your server handles — method, route, status code, duration, cold starts | Next.js apps only |
Vite apps have no running server, so only build logs apply — the Function filter is disabled for static apps.
Live vs. historical
The Logs page defaults to Live — a real-time stream of new activity. Switch the time range to Last hour, Last 24 hours, Last 7 days, or Last 14 days to search history instead; logs are retained for 14 days.
Filtering
Combine filters freely: deployment, source (Build/Function), level (Info/Warn/Error), and a text search. Changing a filter never loses what's already on screen — it re-filters what's buffered, it doesn't reconnect the live stream.
Inspecting a single entry
Click any log line to open its full detail: complete message, deployment, request ID, duration, memory used, and whether it was a cold start. Copy the message or request ID directly from there.