Track UTMs on Leadpages UTM attribution overview Leadpages UTM Tracking Integration only records UTMs that land on the checkout URL at purchase time. UTM Grabber keeps them in cookies on your site. This page explains how to pass that data through before the customer pays. What to expect Leadpages landing URLs accept standard UTMs. Persist them with UTM Grabber on your WordPress site and pass through on outbound links. Steps Track on WP with UTM Grabber Append params to Leadpages links via utm-out Add hidden fields on Leadpages forms matching handl_utm keys Append UTMs with utm-out Buy now UTM Grabber rewrites the link with cookie values. Details: utm-out class guide . For webhook-based attribution after purchase, see Send Leadpages UTMs via Webhook .