Step #2: Setting Up Targeting

Pinterest has its own code that you can embed on your site to help track and target visitors. One of the minor inconveniences of their tracking code is that it can easily get removed during routine site updates, so if you update your site, you'll want to make sure that you didn't accidentally remove the Pinterest tracking code. 

Pinterest also uses a keyword-based targeting system which allows you to build an audience based on their serach terms and interests.