We are taking an entirely new approach to advertising on the open internet. This page is Quantcast's Measure/publisher Terms of Service, not a consumer opt-out page — it contains no self-service deletion or opt-out tool for individuals. The only contact route shown is Quantcast's Legal Department by email (contact@quantcast.com for US residents, contact.dublin@quantcast.com outside the US) or postal mail in San Francisco / Dublin; consumers would need to send a CCPA/GDPR-style request there, and Quantcast also honors device-level ad preference settings as opt-outs.