DIFFERENTIAL CACHING WITH TEMPLATE, SUB-TEMPLATE, AND DELTA INFORMATION

A method for transmitting a web page to a client device is described. Template information, sub-template information, and delta information are identified based on a request for information from the client device. The template information includes seldom changing elements of a web page. The sub-template information includes: (i) information that changes less frequently than delta information, and (ii) elements of a web page shared by several templates. At least one of the template information, sub-template information, and delta information is retrieved from a location other than an originating server that is the original provider of information requested by the client device. The request is responded to by sending to the client device the template information, sub-template information and delta information. In addition, a system for transmitting a web page to a client device is described.