Take your first-party audience and serve programmatic ads to them on other publishers' sites and apps. Audience extension monetizes your audience signal across the open web rather than monetizing your owned and operated inventory. Common vendors include StackAdapt. Tradeoffs: extends your ARPU per user beyond O&O, but requires clean audience data, identity match, and a partner DSP or extension platform to execute. Often paired with logged-in user data, subscriber segments, or contextual signals from your own content. Different from RM-025 (Off-Platform Revenue as a Structured Line), which covers content recommendation networks like Taboola and Outbrain serving on your site. Audience extension is the inverse: your audience, their site.
What named sources recommend, and how they say to do it or measure it, newest first.
To share Ad Manager 360 segments with DV360, open Admin, Linked accounts, Audience Extension and enter the DV360 account ID.
From Google Ad Manager Help, support.google.com
Keep in mind: Help page is undated; date is the day read. Google states that the feature is only in Ad Manager 360, that an Ad Manager support contact must enable it, and that a network links to one DV360 account only. Segments take about 24 hours to appear. Google is an In View client.
Jared Collett of Major League Fishing recommends that publishers pitch buyers of their on-site first-party data to follow that data off-site at a higher price.
From Jared Collett, Major League Fishing, Beeler.Tech
Keep in mind: Collett names agencies and DSPs as the buyers to pitch; he gives no price premium figure.
If Permutive cohorts show low audience sizes in StackAdapt, enable SHA-256 hashed email as an additional identity type.
From Permutive Documentation, docs.permutive.com
Keep in mind: Page changelog dates the StackAdapt integration to March 2026; no day given. Permutive states that cohorts sync daily and that low sizes come from identity matching rates. Permutive is an In View client.
Observations and reported facts, newest first.
Chesley Maddox-Dorsey, CEO of AURN, told AdExchanger in April 2026 that off-site audience segments let AURN sell to challenger brands without national budgets.
From Chesley Maddox-Dorsey, CEO, AURN, AdExchanger
Keep in mind: AURN is a radio network extending audiences from podcasts and streaming; Maddox-Dorsey says the segments are priced higher. No revenue figures given.
Named views and readings, newest first. A view is not a fact.
Jared Collett of Major League Fishing argues that Audience Extension differs from retargeting because it monetizes the audience off-site instead of the publisher's own inventory.
From Jared Collett, Major League Fishing, Beeler.Tech
Keep in mind: Opinion of one publisher with a niche, event-driven audience; Collett notes that the niche makes it easier for Major League Fishing.
At Base Camp Lisbon 2025, Rob Beeler said that publisher sales teams resist audience extension because it requires buying other companies' inventory at lower margins.
From Beeler.Tech, based on beeler.tech
Keep in mind: Summary of a breakout session; the same passage also says sales teams find audience extension complex to package. Beeler called it a necessary survival strategy in the same session.
Companies in RevenueScape that sell for this move, A to Z. Not a ranking.
Add https://mcp.beeler.tech/mcp to Claude or ChatGPT as a custom connector, once. Then ask: “What do publishers report about activate off-site audience extension?” It answers from these statements, with every source named and linked.
Every statement links to its source and says when Beeler.Tech has a tie to it, such as an In View client. Vendors are named as vendors. Community observations are anonymous; here is how we use them. Corrections are made in public.
