At DNSimple, offering a powerful API for domain management is at the core of what we do. DNSimple uses webhooks to deliver notifications via HTTP regarding changes or events in your account. With webhooks you can react to events like domain registrations, transfers, renewals, automatic renewals, zone changes, and a whole lot more. In an effort to continually make it easier to track registration state changes as they happen, today we’re introducing a new webhook event: domain.state_change ….