Kopacak is an online football platform focused on quizzes, games, statistical overviews and articles for fans of the sport. Its content explores footballers, clubs, competitions and notable moments, combining interactive challenges with data-led features. Quizzes cover topics such as player careers, awards, team histories and football video games, while selected premium quizzes are available through a subscription. The site also publishes statistical articles and comparisons, including analysis of club discipline, scoring and offensive or defensive performance, as well as match overviews.

Visitors can browse coverage of major European domestic leagues, including the Premier League, La Liga, Bundesliga, Serie A and Ligue 1, alongside other national competitions and UEFA tournaments. The website offers its interface in English, Czech and Polish, and provides user accounts with features such as notifications, subscription management and settings. Kopacak presents itself as a destination for supporters who enjoy testing their football knowledge and exploring statistics and editorial content.