The Discover Generative AI report reaches every property, three months after a logging note first confirmed it existed
The report's help page opens with a new dated note: "As of August 31, 2026, we've rolled out these insights to all websites worldwide."
The Search generative AI control carries the same date for its own rollout. Its scope includes "Generative AI features in Google Discover".
There was no announcement. Google added the note to three help pages and to its June launch post.
A 21st Aug archive snapshot of the control page still described a rollout to "a subset of website owners".
For this hub the report matters because so little else measures Discover's AI features.
The June anomaly note was Google's first written confirmation that the Discover report existed at all. Until now most properties could not open it.
What it counts is narrow and Google says so. An impression is a link to your site seen inside a generative AI feature in Discover.
It counts only once it scrolls into view, and once per result per session. It is attributed to the canonical page rather than the page a reader lands on.
It reports impressions only, by page, country and date. There are no clicks.
A property without enough impressions in Discover's AI features still sees nothing. The help page keeps that line under the new note.
The control is the other half. Excluding a site removes its links, and its use in grounding, from generative AI features in Discover.
The same exclusion covers AI Overviews and AI Mode. So a publisher cannot opt out of one surface and stay in the others.
The fuller record is on the AI Mode hub. It covers what the reports carry and how the control works.