A proxy, a term of Anglo-Saxon origin, refers to an illustrative or representative element of a phenomenon or situation, used when direct, precise, and objective measurements are lacking. It is sometimes called an “indirect indicator.” According to Bertrand Belvaux and Laurent Florès, with the increasing integration of internet technologies into daily life, it seems logical to consider online activities as potential indicators of individuals’ attention or interest. This idea relates to the notion of “wisdom of crowds,” a field that is relatively unexplored academically but is gaining popularity in the marketing world, particularly thanks to the work of James Surowiecki. According to this approach, aggregating information from a large number of people leads to values ​​closer to reality than expert estimates.