This was only behind DraftKings Sportsbook. It was founded in 2009, starting out as a daily fantasy sports platform exclusively.Īccording to Morning Consult, 73% of respondents were familiar with FanDuel Sportsbook, and 56% actually used it. FanDuel Legal States: Background on the BrandįanDuel Sportsbook is one of the most well-known online sports betting platforms in the United States today.