TwinRed gives advertisers granular control over which publisher sites and ad zones display their ads.
Whitelists: A list of approved publisher sites/zones where your ads appear exclusively. Your ads will only be served on listed sites — all other inventory is excluded. Useful for concentrating budget on top-performing sites or brand-safe campaigns.
Blacklists: A list of sites/zones to exclude from your campaign. Your ads won't serve there, but will continue to run across all other available inventory. Useful for excluding sites that deliver poor performance or irrelevant traffic.
You can manage whitelists and blacklists via the "Traffic Sources" tab at campaign level, and at account level. Contact your Account Manager for assistance.