Validation of content delivery and verification of a delegation of delivery of a content

Methods for validating delivery of content and verifying a delegation of delivery of a content, and corresponding devices and computer program products. A method is proposed for validating a delivery of a content to a client terminal. Such a method includes receiving, by the client terminal, an address, referred to as the received address, in response to a request sent to an address server in order to obtain an address of a delivery server of the content. The request includes a piece of information relating to the delivery server. Such a method further includes receiving, by the client terminal, a piece of information relating to an authentic address associated with the delivery server, the information being sent by a server of the content supplier, and determining the validity of the received address with respect to the authentic address on the basis of the information relating to the authentic address.