First-party data still needs content

First-Party Data: The “Panacea” for a Cookie-less World? Is Consent Its Achilles’ Heel?

As third-party cookies fade into digital history, first-party data has risen to the top of every marketer’s wish list. Touted as the ultimate solution for targeting, personalization, and measurement in a privacy-centric era, first-party data is often positioned as the “panacea” for the challenges left in the wake of cookie deprecation. But beneath the optimism lies a hard truth: first-party data’s marketing power depends on consent, and consent is often complex, inconsistent, or incomplete.

Why First-Party Data Is So Coveted

First-party data is information collected directly from users through their interactions with a brand’s website, app, or services. It includes purchase history, site behavior, preferences, and more. Marketers prize it for several reasons:

  • Accuracy & Relevance: It’s directly sourced, making it more reliable than aggregated or inferred third-party data.
  • Personalization: It enables tailored experiences, boosting engagement and conversion rates.
  • Perceived Compliance: Because it’s collected by the brand itself, it’s often seen as inherently privacy-friendly, though its actual compliance still hinges on how that data is used, protected, and whether consent was properly obtained and documented.

The Consent Conundrum

However, first-party data is not immune to privacy requirements. Its use for marketing—whether for email campaigns, personalization, or targeted advertising—hinges on user consent. And here’s where things get complicated:

Implied Consent: The U.S. Model

In the United States, particularly under laws such as the California Consumer Privacy Act (CCPA) and the California Privacy Rights Act (CPRA), continued use is often considered consent for certain data uses, provided that users are informed and given a clear way to opt out. This means that by using a website after seeing a privacy notice, users are often assumed to consent to certain data uses, including marketing. Companies like Amazon and CNN exemplify this approach:

  • Amazon:
    “We show cross-context behavioral ads… It’s your right under some US state laws to opt out of cross-context behavioral ads. If you opt out, we won’t use information about your use of our store and services to deliver ads to you off of Amazon’s own properties.”
    (Amazon Advertising Preferences)
  • CNN:
    “If you’re a California resident, you can opt-out of sharing your personal information with third parties… At the bottom of cnn.com, choose Do Not Sell My Personal Information and then turn off Share my Data with 3rd Parties.”
    (CNN Privacy Policy)

In both cases, users must take action to opt out, which places the burden on the individual rather than requiring affirmative consent. However, note that new state laws and regulatory guidance are increasingly narrowing the scope of implied consent, especially for sensitive data or targeted advertising, and some states are moving toward stricter opt-in requirements (see Connecticut Data Privacy Act).

Explicit Consent: The European Standard

Contrast this with the European Union’s General Data Protection Regulation (GDPR), where implied consent is not enough. For marketing purposes, consent must be:

  • Explicit: Users must take a clear affirmative action (like ticking a box).
  • Specific and Informed: The purpose for data use must be clearly explained.
  • Freely Given: Consent cannot be bundled with other terms or forced.
  • Granular: Users must be able to consent separately to different types of processing (for example, marketing emails versus profiling).

This means that in the EU, first-party data is only valuable for marketing if explicit, documented consent is obtained. Silence, pre-ticked boxes, or mere continued use of a site do not count.

The Patchwork Problem: Jurisdictional Differences

The result is a fragmented landscape:

  • United States: Implied consent is common, but opt-out mechanisms and transparency are required, particularly for sharing or selling data.
  • European Union: Explicit, opt-in consent is mandatory for most marketing.
  • Other Regions: Countries like Canada (under PIPEDA) and Australia apply context-based models, often requiring explicit consent for sensitive data and relying on reasonable user expectations for other uses.

Why This Matters

Marketers are investing heavily in first-party data strategies, believing it to be the safe harbor in a privacy-first world. But if consent is not properly obtained—or if regulations tighten—much of this data could become unusable for marketing, requiring deletion or risking significant fines.

Best Practices for Marketers

  • Transparency: Clearly communicate what data is collected and how it will be used.
  • Easy Opt-Out: Make it simple for users to change their preferences or withdraw consent.
  • Preference Management: Encourage users to sign in and manage their privacy settings for persistent control.
  • Compliance Monitoring: Regularly update consent mechanisms to align with changing laws and enforcement trends.
  • Avoid dark patterns: Ensure that consent interfaces are simple, transparent, and free of manipulative design.
  • Review reuse policies: Using previously collected data for new purposes may require additional consent.
  • Data Minimization: Only collect and use data necessary for your marketing objectives.

Conclusion: First-Party Data’s Promise and Peril

First-party data is essential in the post-cookie era, but its value for marketing is inseparable from the consent that underpins it. Implied consent may suffice in some regions for now, but the global trend is toward explicit, user-driven permission. Marketers who treat consent not as a checkbox but as a core part of the customer relationship will be best positioned to thrive as privacy standards continue to rise.

Consent requirements are tightening, which means even first-party data, long seen as the fallback plan for targeted marketing, is increasingly constrained. Marketers should stop pretending it’s a silver bullet and start investing in alternative approaches. Contextual targeting, cohort-based models, and predictive analytics that don’t rely on personal identifiers will become more important as consent walls go up and data pipelines shrink.

About Jan Ozer

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I help companies train new technical hires in streaming media-related positions; I also help companies optimize their codec selections and encoding stacks and evaluate new encoders and codecs. I am a contributing editor to Streaming Media Magazine, writing about codecs and encoding tools. I have written multiple authoritative books on video encoding, including Video Encoding by the Numbers: Eliminate the Guesswork from your Streaming Video (https://amzn.to/3kV6R1j) and Learn to Produce Video with FFmpeg: In Thirty Minutes or Less (https://amzn.to/3ZJih7e). I have multiple courses relating to streaming media production, all available at https://bit.ly/slc_courses. I currently work as www.netint.com as a Senior Director in Marketing.

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