Webhooks

Subscribe to operational events for Slack, PagerDuty, or custom automations.

Event types

Event	When
`purge.completed`	Global purge finished
`origin.unhealthy`	Origin checks fail threshold
`origin.recovered`	Origin healthy again
`cert.expiring`	Managed cert < 14 days (rare; auto-renew should handle)

Payload example

{
  "id": "evt_01J8…",
  "type": "purge.completed",
  "created": "2026-08-05T20:01:12Z",
  "data": {
    "purge_id": "pu_8f2a19c0",
    "property": "prop_northwind",
    "propagated_ms": 118
  }
}

Verify DT8-Signature header with your webhook secret (HMAC-SHA256 of the raw body).