What is first-party data targeting on CTV?

Overview

First-party data targeting on Connected TV (CTV) represents a fundamental shift in digital advertising, emerging as a response to increasing privacy regulations and the phasing out of third-party cookies. CTV refers to television content streamed through internet-connected devices like smart TVs, streaming sticks, and gaming consoles. The practice of using first-party data for targeting gained significant momentum around 2020 as major browsers like Safari and Firefox began blocking third-party cookies by default, with Google announcing in 2020 that it would phase out third-party cookies in Chrome by 2024. This shift was accelerated by privacy regulations like GDPR (2018) and CCPA (2020), which restricted how companies could collect and use consumer data. The CTV advertising market has grown rapidly, with eMarketer reporting CTV ad spending reached $25.9 billion in 2023, up from $14.4 billion in 2021. Major platforms like Roku, Amazon Fire TV, and Apple TV have developed sophisticated systems to leverage first-party data while maintaining user privacy through methods like hashed email matching and contextual targeting.

How It Works

First-party data targeting on CTV operates through a multi-step process that begins with data collection. Advertisers gather first-party data directly from customer interactions across their owned channels, including website visits, mobile app usage, purchase histories, email subscriptions, and loyalty programs. This data is then organized into audience segments based on demographics, behaviors, and preferences. For CTV targeting specifically, this data is typically matched to CTV devices using hashed email addresses or device IDs through secure data onboarding platforms. When a user logs into a streaming service with an email that matches the advertiser's first-party data, the system can serve targeted ads during commercial breaks. The technical implementation often involves data clean rooms or secure environments where advertiser data is matched with publisher data without exposing raw information. Major CTV platforms like Roku's OneView and Amazon's Advertising Console provide tools for advertisers to upload their first-party data segments and target specific households. The process maintains privacy through techniques like differential privacy and aggregated reporting, ensuring individual user data isn't exposed while still enabling precise targeting.

Why It Matters

First-party data targeting on CTV matters because it addresses the dual challenges of advertising effectiveness and consumer privacy in the streaming era. With traditional linear TV viewership declining and CTV adoption growing—over 87% of U.S. households had at least one CTV device in 2023 according to Nielsen—advertisers need more precise ways to reach audiences. First-party data enables brands to deliver relevant ads to known customers, improving engagement and reducing wasted ad spend. For consumers, this approach can mean fewer irrelevant ads and potentially better content recommendations. From a business perspective, first-party data targeting typically delivers higher ROI than traditional demographic-based TV buying, with some studies showing 2-3 times higher conversion rates. The practice also future-proofs advertising strategies as privacy regulations tighten and third-party tracking diminishes. Major brands across retail, automotive, and entertainment sectors are increasingly allocating budgets to first-party CTV targeting, recognizing its ability to bridge online and offline customer journeys while maintaining compliance with evolving privacy standards.