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Why does app-ads.txt need a developer website in the store listing?

Updated Oct 7, 2026 · data from 12 App Store genres · top free + top grossing charts · US · iOS + Android

Short answerBuyers find app-ads.txt through the developer website in your app's store listing. Without that URL there's nowhere to look, so the app's ad supply can't be verified.
0 of 883 ad-monetized top US apps in this index have this finding (0%)

Why it matters

An app that sells ads without a developer URL is effectively invisible to app-ads.txt checks.

How to fix it

  1. Add your developer website in App Store Connect and Google Play Console.
  2. Publish app-ads.txt at the root of that domain.

Related

Based on the IAB Tech Lab ads.txt/app-ads.txt and sellers.json specifications. Numbers are automated observations of public files on the date above.