Unwanted ads are displaying in the publisher website.

[Richard Smith]

I  heard some targeting techniques which targets the  users according to some criteria like country, ip address of the system. Is there any other targeting for advertiser to spend his/her money usefully. The main thing is I need to target the audience who have been visited already my ads.

It will display the same advertiser ad to his past visited user when he/she came to visit once again. So there is more probability to user buy the product if we are targeting those users again and again. (example) If a person has visited one advertiser web page and he has clicked a ad and he left it because of some other reason. It tells us that he is having interest on that particular ad. So we need to display the same ad once he comes for the same website again, then there might be more chance to user buy that product or different product of the same advertiser.