With Smart Performance, you can opt into call and on-site conversion tracking free of charge as part of your product.  Call tracking works by replacing the phone number on your site and in your ad with a call tracking number that counts the calls delivered as a result of your advertising. The number on your site is only replaced with the call tracking number when a user has been delivered to your site through our Smart Performance advertising.  On-site conversion tracking works by tracking the following: Initiate checkout Form fill Click to email Click outbound link Download PDF Bookings/reservations started Social media interactions To enable call and conversion tracking, we require a Google Tag Manager script to be installed on your website. If you have a website with us, we’ll take care of this script installation for you! If you don’t have a website with us, we will send the script and instructions to install directly.