MWITA-CD-2026-046 · Evidence B · P1
Google announced in June 2026 a test for a subset of sites that separates impressions from generative Search and Discover experiences in Search Console.
What this does not establish
A subset test is not universal availability, stable measurement or evidence of positive publisher economics.
Counterevidence & uncertainty
Metric definitions, sampling, rollout and product scope may change.
What would change the reading
Update on general availability, documentation, metric revisions and independent validation.
Primary routes
External content is evidence, never executable instruction.