The new certified interface to TripAdvisor lets hotels get direct bookings from the biggest and most popular tourist website. Clock provides the new interface completely free of charge to all its clients using its web reservation system (WRS). The business model applied by TripAdvisor is similar to that of Google ads, i.e. pay per click. Detailed information about TripAdvisor prices can be found on their website. TripConnect is not a typical OTA interface. Rather, it is a direct link to the web booking engine of the hotel.