First-Party Data

First-party data is information a company collects directly from its own customers — through website visits, app usage, purchase history, email subscriptions, account creation, and support interactions. Unlike third-party data (purchased from data brokers) or second-party data (shared with partners), first-party data is privacy-resilient, accurate, and increasingly the only durable foundation for personalization in a post-cookie world. Empire325 helps companies build first-party data infrastructure including consent management, identity resolution, server-side tagging, and customer data platforms (CDPs) that activate first-party data across paid media, email, and product personalization.