Alert channels

Channels are workspace-wide

Alert channels live at the workspace level and are shared across all your projects and products. Add a channel once, then attach it to as many checks as you like. Manage them under Channels in the sidebar.

Supported types

• Email — sent from [email protected]. Reply reaches a human, not a bot.
• Slack — an Incoming Webhook URL (hooks.slack.com/…).
• Discord — a channel webhook URL (discord.com/api/webhooks/…).
• Custom webhook — any HTTPS endpoint; we POST a JSON payload describing the event.

Attaching channels to a check

On a check's detail page, the Notify channels section lists every channel in the workspace. Tick the ones that should fire for this check and save. A check with no channels still shows its status in the dashboard — it just won't push notifications.

What triggers an alert

A down alert fires when a check misses its schedule plus grace period, or when you ping with ?status=fail. A recoveredalert fires when a down check pings successfully again. Alerts are rate-limited so a flapping check won't spam your channels.

Test before you rely on it

Use the Test button on any channel to send a sample alert. Confirm it lands where you expect before trusting it with production checks.