What is what kind of dog is scooby doo?

Scooby-Doo is a fictional Great Dane dog character created by American animation producer Joseph Barbera and William Hanna. He is known for his cowardly and goofy personality, and his insatiable appetite for food, especially snacks like Scooby Snacks. Scooby-Doo is one of the main characters in the popular animated television series "Scooby-Doo, Where Are You!" which first aired in 1969. The character has since appeared in numerous spin-off series, movies, video games, and merchandise. In the series, Scooby-Doo solves mysteries with his teenage friends Fred, Daphne, Velma, and his best friend, Shaggy.