Abstract: An advertising proxy server enables limited-functionality web browsers, such as those commonly installed on mobile devices, to display web page content quickly, without incurring the delay normally associated with displaying web pages containing advertisements. When such a web browser requests a web page containing advertisements from a web server, the web server: (1) serves the main web page content to the web browser; and (2) instructs the advertising proxy server to retrieve the web page's advertising content. The web browser may render the main web page content while the advertising proxy server is retrieving the advertising content from a conventional advertising server. The web browser requests the advertising content from the advertising proxy server, which serves the advertising content, when available, to the web browser, which then renders the advertising content. The web browser may perform these functions without the need to execute JavaScript or other non-HTML code.