GLI-19 is a technical standard developed by Gaming Laboratories International (GLI) that sets forth requirements for interactive gaming systems. It is designed to provide a comprehensive framework for regulators, suppliers, and operators to ensure that online gaming is fair, secure, and auditable. The standard covers the entire technology stack, including game servers, player account management, financial transactions, security protocols, and reporting. Its purpose is to eliminate subjectivity in testing, protect players, and ensure the integrity of gaming operations from both a revenue collection and player perspective. The standard addresses key areas such as the security of data and sessions, game fairness, Random Number Generator (RNG) controls, player protection tools, and the creation of detailed logs and audit trails. GLI-19 is used by regulatory bodies worldwide as a baseline for their own technical requirements and by suppliers as a guide during product development.