On a live property this click opens the property's own booking engine (Sirvoy or Beds24) with dates and guests already filled in. The guest books, the property keeps 100% of the rate, and the stay syncs back to Booking.com and Expedia automatically — no double-booking. In this demo, nothing leaves the page.
The tagged link is how the monthly report proves which channel — Google profile, QR card at the desk, this site — produced each booking.