Device Fingerprinting

Device fingerprinting is a way to combine certain attributes of a device such as OS, browser version, browser language version, IP address to identify it as a unique device. Unlike a cookie, which is effectively a tracking monitor an individual device, device fingerprinting relies on the probability that a device recognized as having certain attributes on one day is the same device seen with those same attributes on another day. Device fingerprinting, in some ways is more reliable than using cookies as it's much harder for individuals to prevent. People can delete their cookies but are less likely to change their OS or reset their IP address.

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