1. Computerized apparatus configured for communication with a content delivery network, the computerized apparatus comprising: at least one data interface for communication with one or more computerized client devices; at least one hardware or software interface configured to interface with one or more conditional access functions of each of the one or more computerized client devices; processor apparatus in data communication with the at least one data interface and at least one hardware or software interface; and computer-readable apparatus in data communication with the processor apparatus and comprising a non-transitory storage medium, the non-transitory storage medium comprising at least one computer program having a plurality of instructions, the plurality of instructions configured to, when executed by the processor apparatus: receiving data indicative of a plurality of digitally rendered content elements from a computerized entity of the content delivery network; generate profile data related to the one or more conditional access functions of the one or more computerized client devices; cause computerized analysis of the generated profile data, the analysis comprising at least a correlation between (i) at least one of the one or more conditional access functions supported by at least a first one of the one or more computerized client devices and (ii) a capability required to decode individual ones of the digitally rendered content elements of the plurality; and based at least on the correlation, modify the data indicative of the plurality of digitally rendered content elements, the modified data comprising data indicative of one or more of the digitally rendered content elements that are specific to at least the first one of the one or more computerized client devices.