If you block one or more domains that are regularly sending you Sponsored Search traffic, your monthly traffic volume and click charges may decline, but the extent of this decline could vary depending on the keywords you are using. Blocking a single website from our publisher network usually shouldn’t significantly change either your traffic volume or click charges. This is because, for most advertisers, the Yahoo! network drives more traffic than from any other partner site, and Yahoo.com domains cannot be blocked with the Blocked Domains feature.