First-Party Data

The Short Answer

First-party data is information a business collects directly from its own customers or website visitors: purchase history, form submissions, on-site behavior, and account details. Because it comes from an owned relationship, first-party data is generally the most accurate and privacy-durable data a company has, and it is often the starting point for enrichment or lookalike audience building.

How It Works

First-party data accumulates naturally through owned channels: purchase history from a checkout flow, form submissions, on-site behavior tracked with a company's own analytics, and details entered into a customer account.

Why It Matters

Because it comes from a direct relationship rather than a third party, first-party data does not depend on cookies or external licensing and tends to be the most accurate data a business has about its own customers.