Click-based advertising is generally priced on a cost-per-click basis, with payments from travel partners determined by the number of travelers who click on a link multiplied by the CPC rate for each specific click.

This revenue per hotel shopper has been gradually declining from $0.54 in 2015 to $0.42 in 2018, largely due to travel partners bidding to lower CPCs in the click-based metasearch auction and more hotel shoppers visiting TripAdvisor-branded websites and apps on mobile phones.

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