Yahoo! had developed Ad Blocking feature for its users so that they can block ads that are not required by their customers or business ads which are in direct competition with them. Yahoo! Publisher Network has updated this feature. The updated feature allows the publishers to block ads from multiple or certain domains that publishers don’t want to see on their websites. YPN Blog has mentioned two levels of Ad Blocking:
1.Domain-Level Blocking: Entering, say, “mycompetitor.com” will block ads pointing to the entire mycompetitor.com domain. This is the broadest form of blocking. Note that in order to do this, you must enter the domain URL without the “www” domain prefix.
2. Sub-Domain Level Blocking: Entering “products.mycompetitor.com” will block ads pointing to only the products.mycompetitor.com sub-domain. Ads pointing to www.mycompetitor.com (with the “www” prefix) or a different sub-domain, such as “people.mycompetitor.com,” will not be blocked.
Publishers can block around 200 domains through activating Ad Blocking.