Understanding the difference between visitor, prospect, and lead is essential for effectively using Pardot to nurture and convert your prospects into customers.
Pardot Visitors
A visitor is someone who visits your website for the first time.
Visitors are tracked by Pardot through cookies or tracking codes, which allows you to track their behavior on your website and understand their interests.

From Visitors to Prospects
In Pardot, Prospects are individuals who have shown an interest in your product or service.
For instance, they have taken a step to engage with you, by providing some information, such as an email address
You can manage prospects through lists, tags, and custom fields, which allow you to segment and personalize your marketing efforts.

From Prospects to Leads
By definition, a lead is a prospect who has demonstrated a higher level of interest and is more likely to become a customer.
You generate Leads through actions such as filling out a form, downloading a white paper, or requesting a demo.
We recommend you to use scoring and grading to help you prioritize your follow-up efforts and determine your leads level of engagement.

From Leads to Contacts
Once qualified and ready to be sent to your sales team, you can convert your Lead into a contact.

Understanding the difference between visitor, prospect, and lead in Pardot is essential for effectively managing your sales funnel and converting prospects into customers.
By tracking the behavior of visitors, nurturing prospects, and prioritizing leads, you can effectively engage with your target audience and drive conversions.
Visit Pardot Website: https://developer.salesforce.com/docs/marketing/pardot/overview