RingLead is responsible for finding the multiple fields of criteria in Salesforce (First Name, Last Name, Email, Address, Phone, and so on…) so that a lead is not created twice in Salesforce even if they have used more than one email address.
You can take advantage of RingLead’s deduplication benefits by using Salesforce Web-to-Lead forms and letting prospects naturally sync down to Pardot from Salesforce (which can be enabled in your connector settings).
If you place Web-to-Lead forms on Pardot landing pages or web pages with your Pardot tracking code, the Salesforce Web-to-Lead form submission will not be tracked in Pardot, but Pardot will still cookie and track the visitor anonymously.
If the visitor doesn’t exist in Pardot, fills out a Web-to-Lead form, and later converts on a Pardot form or clicks on a tracked email link, the visitor’s activity will become associated with the lead/prospect that was created by the Web-to-Lead form and synced to Pardot. If the prospect already exists in Pardot, and is syncing to a Salesforce record, email and other changes from the Web-to-Lead forms will sync down to Pardot depending on your connector settings.