Aug. 29, 2025

Episode 137: The big debate around Transaction IDs with Chris Kane and Mike O’Sullivan

Episode 137: The big debate around Transaction IDs with Chris Kane and Mike O’Sullivan

In this episode, Ari Paparo moderates a debate about the role of transaction IDs in the ad tech industry with Mike O’Sullivan, co-founder of Sincera and now part of The Trade Desk, and Chris Kane, founder of Jounce Media. The conversation covers the benefits and drawbacks of transaction IDs, publisher concerns about revenue and data privacy, and the influence of the Trade Desk. The episode also looks into the complexities of auction duplication and the need for transparency and standardization in digital advertising. In The Refresh, Ari and Eric Franchi discuss related topics, including CTV pause ads, AI payment models, and Amazon’s decision to block AI bots from scraping data. Takeaways

  • Transaction IDs help harmonize ad requests and improve auction processes.
  • Publishers express concerns about potential revenue loss and data privacy.
  • The Trade Desk's influence is a point of concern for many publishers.
  • Request duplication presents a significant challenge in ad tech.
  • Engaging with buyers is crucial for publishers to understand market needs.
  • Recent pre-bid changes have limited publishers' strategic options.
  • Cleaner auctions can benefit both buyers and sellers.
  • Transparency is vital for fair competition in the ad market.
  • Publishers should seek clarity on how their inventory is presented.
  • Standardization is needed for better performance in the ad tech ecosystem.

Chapters

00:00 Introduction to Transaction IDs

02:15 Understanding Transaction IDs and Their Controversy

05:15 Publisher Concerns and Revenue Implications

09:01 The Impact of Request Duplication

14:35 Practical Uses of Transaction IDs for DSPs

18:46 The Future of Transaction IDs in Ad Tech

19:22 The Pre-Bid Controversy

20:53 Skepticism in the Market

25:11 Fear of Trade Desk's Power

30:12 Navigating Publisher Concerns

35:03 Advice for Publishers Moving Forward

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