Definition
Zero-Party Data
Data that a customer intentionally and proactively shares with a brand — preferences, feedback, testimonial content. The most trustworthy form of customer data.
What does Zero-Party Data mean?
Zero-party data is information a customer deliberately and proactively shares with a brand, such as stated preferences, survey responses, or testimonial content, as distinct from data inferred by tracking behavior. The term distinguishes it from first-party data collected through observation.
Why does Zero-Party Data matter?
It matters because it is both more accurate, since it comes directly from the customer's own statement rather than an inference, and more trustworthy to collect and use, since the customer consciously chose to share it, reducing the privacy concerns associated with other data collection methods.
How is Zero-Party Data applied in practice?
It is gathered through preference centers, surveys, and testimonial or feedback forms, then used to personalize content or as a direct source for marketing assets like quotes, with its use measured by whether personalization or content built from it improves engagement compared to generic alternatives.
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Where this fits
Zero-Party Data sits in the conversion analytics part of the NotiProof resource network.
Read the Conversion Analytics guide