In a webhook delivery system, each customer endpoint is an external dependency you don’t control. Some endpoints are fast and reliable. Others time out consistently, return 500s intermittently, or go down for hours during deployments. Without endpoint health tracking, your delivery workers waste time retrying dead endpoints while healthy endpoints get delayed because the retry queue fills up with failed attempts to unavailable ones. Per-Endpoint Health Scoring Track delivery outcomes per endpoint: successful deliveries, failures, consecutive failures, last success time.