US Patent 11308502 Method for detecting web tracking services

A method for detecting web tracking services during browsing activity performed by clients having associated client identifiers includes the steps of extracting key-value pairs contained into navigation data, looking for one-to-one correspondence between said client identifiers and the values contained in said keys and selecting the keys for which at least a client-value one-to-one correspondence for at least a predetermined number of clients is observed, the keys identifying the associated services as services performing tracking activities.