The Leaderboard or Scoreboard is one of the main advertising formats in the field of digital learning promoted and recognised by the IAB or Interactive Advertising Bureau. For your information, the latter is an association that was set up in 1998. Its mission is to structure the communication market on the Web. It is also responsible for optimising its efficiency. It also promotes its use. Also known as a mega-banner or mega-banner, the Scoreboard generally measures 728 X 90 pixels. These dimensions must therefore be respected to establish a Leaderboard.