Quantcast is an advertising technology company that specialises in AI-driven real-time advertising, audience insights and measurements. Quantcast advertise their ability to know the sites people visit, the keywords people search and their ability to understand purchase habits, all of which Quantcast turn into "actionable insights". PI is concerned with Quantcast’s, "insights" and "targeting" products, together with its consent solutions "Quantcast Choice" which is prevalent around the web.