Op.gg is a website that provides various statistics and tools for players of the popular online game League of Legends. The website allows users to check their own or other players' profiles, match history, rank, win rate, champion pool, and more. Users can also use the website to find optimal builds, runes, and strategies for different champions and game modes. Additionally, the website offers live game information, spectate features, leaderboards, and community forums. Op.gg is a comprehensive and reliable source of information for League of Legends enthusiasts.