Kèo Nhà Cái, also known as Keonhacai, is a Vietnamese-language football information website for fans seeking match data and analysis in one place. It provides live football odds, scores, fixtures, results, league tables and coverage of matches across competitions around the world. Visitors can browse information on popular leagues and tournaments, including the English Premier League, UEFA Champions League, World Cup and Asian Cup.

The site also publishes pre-match previews and commentary intended to explain match indicators and betting lines in accessible language. Its odds information includes commonly followed markets such as Asian handicap and over/under, with updates presented as ongoing and available for many matches each day. Kèo Nhà Cái describes itself as a free, neutral sports information service, rather than a betting operator: it says it does not accept wagers or collect money from users to access its news and data.

The website is designed to help football followers check fixtures, follow live developments and consult match statistics through a single interface