Web server system, advertising server system, and client-caching method for multi-advertising thereof

摘要

PURPOSE: A web server system, an advertisement server system and a method for caching an advertisement file are provided to make the client cache of a multi-banner advertisement possible. CONSTITUTION: The web server system(1) and the advertisement server system(5) connects to the Internet and the client terminals(7a-7n) connect to the web server system and the advertisement server system. The web server system transfers a web document in order to display the multi-banner advertisement to the client terminal and the advertisement server system is a servant system to transfer the advertisement file inserted and displayed to the web document transferred by the web server system. The client terminal has a web browser(31) to connect to the web server system and the web browser has a client execution program analysis engine(32). The analysis engine outputs the web document by executing a source document(30) including a client execution program(33) and the web browser requests the corresponding advertisement file according to the outputted web document to the advertisement server(51).