The ZoomInfo WebSights snippet drops three cookies to track Unique Visits:

1. _pxhd - Related to the Perimeter X security layer (Perimeter X isused to prevent bot attacks).

2. _cfduid - Related to the CloudFlare security layer (CloudFlare is the Network Security protocol that ZoomInfo uses to orchestrate the rate limiting rules).

3. visitorId - This is how WebSights identifies recurring visitors