An application server associated with a content and/or data transfer network executes telemetry framework(s) to monitor telemetry data for client devices over communication networks. The application server instructs one or more client devices associated with the application server to generate telemetry data according to one or more parameters, monitors the telemetry data generated by the one or more client devices when the one or more client devices requests content from a content delivery network associated with the application server, determines a change in a value for the telemetry data, and stores the change in the value for the telemetry data keyed to the one or more parameters in a database.