Uptime monitoring
WebSocket monitors
Check that a WebSocket endpoint accepts connections.
WebSocket monitors open a WebSocket handshake against a ws:// or wss:// URL and report whether the connection opens.
Create a WebSocket monitor
- Open Uptime and click Create monitor.
- Pick WebSocket as the monitor type.
- Enter the full URL, including the
ws://orwss://scheme. - Set the check interval and click Create monitor.
What "up" means
The monitor is up when the server completes the WebSocket handshake. A failed handshake, TLS error, or timeout puts the monitor in the down state. Checkmate closes the connection immediately after the handshake — it does not exchange application messages.
To validate application-level behaviour beyond a handshake, combine the WebSocket monitor with an HTTP monitor against the service's health endpoint.