TripAdvisor’s “Certificate of Excellence” is a certification scheme run by this U.S.-based company that operates the largest traveler community website in the world. In addition to the number of user-generated reviews and how many points the facility has garnered, the scheme also considers the length of the facility’s opening hours and its popularity ranking; only facilities that attain a high evaluation overall, considering all of these factors and others, are granted the “Certificate of Excellence.”