Because these pages are hosted on github.io (e.g., username.github.io/game-name ), they often slip past standard web filters. Most school and corporate firewalls block keywords like "game," "arcade," "fun," or specific streaming ports. However, github.io is frequently whitelisted because IT administrators recognize that students and developers need access to GitHub for legitimate coding projects. Game developers exploit this loophole by packaging HTML5, JavaScript, and WebGL games into static sites.