Visitor
visitors.id
One browser, recognised across visits by an opaque token. Anonymous until something identifies it.
→Session
visitor_sessions.visitor_id
One continuous visit. Carries referrer, UTM, device, country, duration and page count.
→Customer
visitors.customer_id
A known person, created by identify(). Linking one back-fills every earlier session.
→Conversation
conversations.visitor_id
A chat thread, carrying the visitor, the customer and the session it started in.
→Ticket
tickets.conversation_id
A tracked obligation with a status, a priority and an SLA clock, still pointing at the row above.