What is specific to AI Overviews
This is a Search feature, so it inherits Search's index and controls.
- No separate crawler or markup exists for AI Overviews
- Google-Extended governs Gemini training and grounding, not Search
- nosnippet, data-nosnippet, max-snippet and noindex limit what is shown
- Overviews appear only when Google decides they add value
- Fan-out searches mean linked pages can sit outside the top ten
- Generative AI reports in Search Console show impressions