We build and create audience extension is the technology that allows digital publishers those who facilitate online advertising to help advertisers and brands reach a target market by tracking website visitors and serving ads to those visitors on other sites once they have left the target site.
The process is made possible by cookie technology that records each website visitors online activity. By placing a few lines of HTML code into the back end of the target website, each visitor is tagged with a cookie that is activated when another site from which the original HTML code was produced is visited by the original visitor.