Alert Contacts

Contact Types

Email

Sends an email to the specified address with monitor name, status change, and details.

Slack

Posts to a Slack incoming webhook URL. Set up an incoming webhook in your Slack workspace and paste the URL.

Webhook

Sends a JSON POST request to your URL with the following payload:

{
  "monitor_name": "My Website",
  "monitor_target": "https://example.com",
  "status": "down",
  "old_status": "up",
  "message": "request failed: connection refused",
  "checked_at": "2026-03-29T12:00:00Z"
}

Testing

Use the Test button on any alert contact to send a test notification. This helps verify your configuration before a real incident.

Alert Behavior

• Alerts fire on state transitions only (up→down and down→up)
• No daily limits on any plan
• If a monitor has a confirmation count > 1, it must fail that many consecutive times before alerting