Browser fingerprint tracking is already widely used by social networks, online bankings and even small sites:įingerprintSwitcher - это более продвинутая версия смены юзер агента. You can check your fingerprint here, and this library allows you to embed fingerprint calculation on your site. Service provides access to database with about 50,000 fingerprints obtained from real devices which is constantly updated. Unlike other solutions which block potentionally dangerous methods, FingerprintSwitcher protects users by replacing results of theese APIs, adding noise or transfering values from real devices. An example of such tricks could be canvas or audio fingerprinting. Site can identify user hardware even if there is no possibility to do that directly by using special "tricks". Each property could be a part of browser fingeprint and used with standart one like resolution and plugins list in order to identify user with even more precision. An example would be reading video card vendor. Sites can access properties of real hardware through various browser APIs.
In fact, FingerprintSwitcher can be called a proxy service analog for fingerprints. This problem can be solved with FingerprintSwitcher service, since it provides a new set of properties each time. By adding new factors, the site can determine exactly what user visits it, even if he uses proxy. A set of such properties forms browser fingerprint. Let's say that among a million users, tens of thousands can have a certain resolution, but only a few thousand have a certain resolution and a certain set of plug-ins. Modern methods of user identification can identify him only by a set of browser properties. It changes not only user agent, but a lot of browser internals to make browser actually look like firefox, chrome, safari, on desktop or on mobile.
FingerprintSwitcher is like user agent switcher on steroids.
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