title: Check if post has been viewed / visited (Wordpress)
body: <p>I'm just wondering if there is a way to check if a post has been visited or not, basically I have a custom post type "Videos" and would like for when a user has viewed the post / video, when going back to the listing page, there would be a tick to show it's been viewed..</p>
  
  <p>Is this possible? maybe using cookies?</p>