An Exclusion Pixel is a way of stopping ads from appearing in a certain place or to a certain user. It is a 1×1 pixel that is given a variable that an Ad Server can see, and then not serve an ad.
For example, the Ad Tag on a membership confirmation page may have an Exclusion Pixel on it. This is then used to ensure membership sign up ads do not appear on that page.
The exclusion pixel could also be attached to a cookie so that users who have been to that page are also not targeted by membership ads. Glossary Index