Abstract: A method for monitoring browsers (B) for a communications network (N), wherein a monitoring server contains a set of monitoring elements, and implements: ?—a step (E1) of receiving a monitoring element request from a browser (B), ?—a step (E2) of determining whether the request is a first request from the browser, ?—if so, a step (E3) of calculating an identifier for the browser, then a step (E4) of determining a cache duration value associated with each monitoring element of the set, and a step (E5) of transmitting the set of monitoring elements and associated values to the browser; ?—if not, a step (E6) of determining the browser's identifier based on the monitoring elements requested in the request.

Abstract: A method for monitoring browsers (B) for a communications network (N), wherein a monitoring server contains a set of monitoring elements, and implements: ?—a step (E1) of receiving a monitoring element request from a browser (B), ?—a step (E2) of determining whether the request is a first request from the browser, ?—if so, a step (E3) of calculating an identifier for the browser, then a step (4) of determining a cache duration value associated with each monitoring element of the set, and a step (E5) of transmitting the set of monitoring elements and associated values to the browser; ?—if not, a step (E6) of determining the browser's identifier based on the monitoring elements requested in the request.

Abstract: A method for dynamically monitoring a group of wirelessly communicating mobile entities, characterized in that it comprises: assigning each entity a unique identifier; saving within a referring entity the list of the identifiers of all of the entities in the group; determining, for each entity, a vicinity with a predetermined radius; repeatedly, for each entity in the group: detecting the other entities located in its vicinity; transmitting a message to the detecting entities, said message containing at least the identifier of the entity, to be relayed to the referring entity; collecting, within the referring entity, the messages relayed to it; creating a list of identifiers contained within the messages; comparing this list to the saved list; if the lists are identical, determining the cohesive group; otherwise, determining the non-cohesive group.