Beyond the Selfie: How Roblox’s Age-Assurance System Helps Keep Age Checks Current

Roblox’s Facial Age Estimation system has processed 338 million age-check records to help Roblox users unlock age-appropriate chat and access age-appropriate games on the platform. The technology we use for facial age checks was selected because it’s been tested and certified by third-party labs and has proven to be more accurate than self-declared age. This initial age check is necessary, but age assurance doesn’t end at the selfie. Accounts could be shared or handed off to a younger sibling. Bad actors could attempt to probe our defenses. To move age assurance beyond a point-in-time signal, we built a high-throughput ML layer that evaluates whether an account’s ongoing behavior still matches its estimated age over time. Our feature-level modular design enables efficient model updates and rapid adaptation to shifting behavioral patterns.