An opt-out tool or page is an interface that allows consumers to opt-out from behavioral targeting (the most often interest based targeting).
An opt-out tool or page may be offered by a single network or by an advertising trade association. In the latter case, the consumer can opt-out from each network member of the association or make an overall opt-out.
In some case, an opt-out tool based on a browser plugin or addon may be offered to prevent the limits of opt-out cookies.
Opt-out tools and pages are a result of self regulation or privacy laws.
The opt-out tools offered by NAI.
An opt-tool offered by a network: