A method for promoting customer loyalty including recording digital identification data regarding a visitor to sites in a first database including a registration table on a customer loyalty server of unique identifiers of registered visitors and selected data, registering on equipment of the visitor of a digital file containing an identifier assigned to the visitor, recording on a server of an affiliated merchant site a digital file producing a display of an active pictogram including a link to a point management computer program, the file including a unique identifier of the affiliated merchant, allocating reward points by recording in a database a table including an identifier of the visitor and a counter of the allocated points, preparing a response to an activation by a user of the link appearing on the page of the merchant's site, a file including at least the digital identifier of the merchant and an identifier of the visitor, transmitting this file to the customer loyalty server, performing a search for the visitor's identifier, incrementing the point counter in relation to the information contained in the digital file in the case in which the visitor is already registered, and transmitting a digital registration form in the contrary case.