Online Advertising Method And Online Advertising System using Advertising Appliance

PURPOSE: An on-line advertisement method using an advertisement appliance and a system thereof are provided to reduce the burden of securing many affiliated sites by installing the appliance in networks of Internet service providers(ISP, SO, and etc). CONSTITUTION: A user requests a predetermined Internet site(S201). An advertisement appliance analyzes HTTP packet information(S202). It is determined whether the requested Internet site is an HTML page through the analyzed HTTP packet information(S210). If so, it is determined whether the requested Internet site is registered in the advertisement appliance(S220). If so, it is determined whether the requested Internet site is an advertisement site or a search site(S230). If the requested Internet site is the search site, a service network identification code and a script are inserted into the advertisement and the advertisement is outputted to a user through the search site.