title: Targeting visitors from domain X on domain Y
body: <ol>
  <li>I have a web product on aaa.com </li>
  <li>My user has logged in to his aaa.com account and copied an aaa.com javascript snippet to his personal website on bbb.com</li>
  <li>If the user has logged in to aaa.com in the last 30 days, I want to run a specific code on bbb.com (using the aaa.com JS snippet) whenever that specific user (and only that specific users) enters his own personal website</li>
  </ol>
  
  <p>How can I do that? :)</p>