Touch input detection
GET /api/fingerprint/touch-supportTouch support fingerprinting detects touchscreen capabilities via navigator.maxTouchPoints and CSS media query (pointer: coarse). Desktop computers typically report 0 touch points, tablets report 5-10, and smartphones report 5. Windows touchscreen laptops report 10 touch points, creating a distinctive signature. Combined with screen size, this reliably distinguishes device types: large screen + no touch = desktop, small screen + touch = mobile, large screen + touch = touchscreen laptop/tablet. Some desktop users with touchscreen monitors create unique fingerprints. The value is stable per device.
Move from this collector to the CreepJS signal index, live checker, API docs, and other high-value fingerprinting explainers.