The Rottweiler (, UK also ) is a breed of domestic dog, regarded as medium-to-large or large. In fact, in the mid-1990s, the popularity of the Rottweiler reached an all-time high with it being the most registered dog by the American Kennel Club. In 2017, the American Kennel Club ranked the Rottweiler as the eighth-most popular pure-breed in the United States. The Fédération Cynologique Internationale gives the following description of the Rottweiler standard: 'Rottweiler breeders aim at a dog of abundant strength, black coated with clearly defined rich tan markings, whose powerful appearance does not lack nobility and which is exceptionally well suited to being a companion, service, rescue and working dog.' This breed is all about balance, endurance, proportionality, intelligence and strength. This breed is all about balance, endurance, proportionality, intelligence and strength. The various standards in place for the Rottweiler's physical appearance specify these characteristics.