The best way to track the number of visitors who access a file on a web page that the company does not own on the company website is to use custom redirects . Custom redirects are used to track links such as banner ad clicks, links to third-party sites, links on social media, and access to files hosted outside of Account Engagement. Link clicks appear as activity on a prospect's record. Page actions (A) are not a valid option, as they are used to track and automate actions based on a prospect's page views, not link clicks. Account Engagement form (B) is not a valid option, as it is used to capture and update prospect information, not track link clicks. Account Engagement tracking code (D) is not a valid option, as it is used to track and cookie visitors on the company website, not on a third-party site. Reference: Custom Redirects