Verification and auditing in a content delivery framework

A computer-implemented method, operable in a system comprising multiple services, the services running on a plurality of devices, includes tracking first information about requests sent from at least one first service in a first collection of services to at least one second service in a second collection of services, the first collection of services being distinct from the second collection of services; tracking second information from the second collection of services about requests supposedly processed by the second collection of services; and reconciling the first information with the second information. The reconciling may be used to verify or audit information reported by the second collection of services.