1. A method for protecting privacy of users from web-trackers, the method comprising: capturing, by a device ( 200 ), a public unique identifier set by a Website ( 300 ) in a computing device ( 100 D) of a user ( 100 ) who requested access to said Website ( 300 ) via the Internet, removing, by the device ( 200 ), the captured public unique identifier from said users' computing device ( 100 D); monitoring, by the device ( 200 ), during a first configurable period of time, web-requests the user ( 100 ) makes to said Website ( 300 ) and/or to other different Websites to obtain a web-behavioral profile of the user ( 300 ), and storing the obtained web-behavioral profile as a first vector representing what information of the user ( 100 ) has been allowed to pass to a web-tracker; upon expiration of the first configurable period of time, tracking, by the device ( 200 ), during a second configurable period of time, the web-requests made by the user ( 100 ), to examine the effect each web-request has on assisting the de-anonymization of the user ( 100 ), obtaining a second vector; classifying, by the device ( 200 ), the obtained second vector taking into account a computed similarity score parameter that considers the web-behavioral profile of the user ( 100 ) with respect to a web-behavioral profile of one or more users and a threshold parameter related with the privacy of the user ( 100 ); creating and mapping, by the device ( 200 ), a corresponding private unique identifier for said captured public identifier, said created and mapped private unique identifier being based on said classification; and executing, by the device ( 200 ), based on said mapping between the private and the public unique identifiers, an intervention algorithm for said web-tracker to protect privacy of the user ( 100 ) therein taking into account a configured intervention policy.