What is device fingerprinting?

Device fingerprinting is a technique used to identify a device by combining various attributes from its configuration and usage, such as the IP address, device model, hardware specifications, screen resolution, operating system, and browser version. This data is compiled into a device hash (or hardware hash), creating a unique device ID or fingerprint that allows the software to track the device across multiple sessions.

Unlike cookies, which are stored on a user’s device, device fingerprints are generated by analyzing data sent during a web request. This approach enables tracking without relying on cookies, making it more persistent and difficult for users to evade.