Method and apparatus for dynamically rendering an advertiser web page as proxied web page

Disclosed are methods and apparatus, including computer program products, implementing and using techniques for dynamically rendering an advertiser web page as a proxied web page associated with an online marketing campaign on behalf of an advertiser. The advertiser has an associated computer in communication with a data network. The method is performed for customizing data presented to a customer having a computer in communication with the data network without requiring intervention by the advertiser. In one aspect, the method includes providing the advertiser web page on a processor-readable storage medium in communication with the data network. A request is received on behalf of the customer for the advertiser web page. Responsive to the customer request, the advertiser web page is retrieved from the processor-readable storage medium. The advertiser web page is dynamically edited to produce the proxied web page. The proxied web page is provided over the data network for the customer computer. In one aspect, responsive to a customer interaction based on the proxied web page, a data collection engine collects information describing the customer interaction.