TripAdvisor was a website used to rate locations.
The Twelfth Doctor told Lafcardio that as soon as he left the Prison, he was going to be "quite catty" on TripAdvisor. (PROSE: The Blood Cell)
In 2018, the Thirteenth Doctor and her companions landed in Norway. By tasting the soil, the Doctor could detect that they were 25 miles from an alpaca farm that had a gift shop with a very low TripAdvisor rating. (TV: It Takes You Away)