Booking.com is a travel fare aggregator website and travel metasearch engine for lodging reservations of Dutch origin. Since 2005, it has been owned and operated by United States-based Booking Holdings. The website lists more than 1,534,024 properties in 226 countries and territories and books 1,200,000 room nights per day. The site is available in 43 languages. In 2013, the site accounted for more than two thirds of the revenue of Booking Holdings.