OTT attribution: overcoming the challenges of house IP address movement in CTV

The Promise and the Pivot

When we first started Intent IQ, the promise of Over-the-Top (OTT) advertising was simple: the precision of digital with the impact of the big screen. But as any marketer who has tried to track a CTV impression to a mobile purchase knows, the reality is far more complex. We are living in a “post-cookie” world where the industry is scrambling for identifiers. While many have landed on the “House IP address” as the golden ticket for OTT attribution, they’ve overlooked a fundamental flaw: IP addresses move. In this guide, I want to pull back the curtain on how OTT attribution actually works, why traditional methods are failing, and how we are solving the “identity gap” to give brands the 360-degree view they deserve.

What is OTT Attribution?

At its core, OTT attribution is the process of connecting an ad shown on a streaming service (like Hulu, Roku, or Peacock) to a specific consumer action, such as a website visit, an app install, or an offline purchase. Unlike traditional linear TV, which relies on broad “probabilistic” guesses based on time-slots and regions, OTT attribution is designed to be deterministic. Because streaming is internet-based, every impression carries data. The challenge isn’t getting the data; it’s connecting it to the right person on the right device at the right time.

Why Traditional Tracking Fails in the Living Room

If you look at the current leaders in the space, they’ll tell you that the IP address is the anchor of the household. But at Intent IQ, we’ve found that relying solely on a static IP is a recipe for “signal loss.”

1. The “Moving IP” Problem: Household IP addresses are not permanent. They rotate. If a viewer sees an ad on Monday and converts on Thursday, their IP address may have already changed, breaking the attribution chain.
2. The Device Fragmentation: The person watching the ad on the CTV is rarely the person holding the credit card at that exact moment. Attribution must bridge the gap between the TV and the “converting device” (the smartphone or laptop).
3. The Death of the Cookie: With third party cookies disappearing, the old ways of “stitching” sessions together are gone.

Moving Beyond the “Last-Click” Myth

To truly master OTT attribution, marketers need to look at different models. Most of my conversations with brands today center around three approaches:

• First-Touch Attribution: Great for understanding what sparked the initial interest, but often undervalues the “closer.”
• Last-Touch Attribution: This is where many fall short. In OTT, the “last touch” is rarely the TV; it’s usually a search or a direct visit. If you only look at the last click, you’ll stop investing in the very ads that are driving your brand awareness.
• View-Through Attribution (VTA): This is our focus. VTA measures the effectiveness of an ad based on a user’s behavior in the days following the exposure, even if they never clicked. In a cookieless world, VTA is the most accurate reflection of how CTV influences the path to purchase.

How Intent IQ Solves the “House IP” Challenge

Our approach at Intent IQ isn’t just about tracking an IP; it’s about Identity Resolution. We use a dynamic Identity Map that sees beyond the rotating IP address. By utilizing our Identity Device Graph, we can match a CTV impression to a household with 90%+ deterministic accuracy. Even when the IP rotates, our graph maintains the connection between the devices in that home. This ensures that when a user sees an ad on their smart TV and buys on their iPhone three days later, the credit goes exactly where it belongs.

The Bottom Line for Marketers

OTT is no longer an “experimental” spend; it is the backbone of modern performance marketing. But you cannot manage what you cannot measure. If your attribution provider is still relying on static IPs or legacy cookies, you are likely missing 30-40% of your actual conversions. At Intent IQ, we are committed to providing the technical infrastructure that turns “streaming impressions” into “measurable ROI.”