SEOAIO.aiSearch Engine Optimization + AI Optimization

Measured engine

Google AI Overviews

What we measure about whether Google's AI Overview cites your site, how the SERP is sampled, and why referral traffic is not part of the number.

Citation sampling on Google AI Overviews unlocks on the Pro plan and up, because each sample is a real paid query. See pricing.

What we measure on Google AI Overviews

  • Answer Share for the Google AI Overviews surface, on the same sampling family as every other engine.
  • Whether your domain appears as a cited source in the AI Overview, checked through the AI Overviews tracker against Google's live SERP.
  • Citation Rate and Owned Citation Share for AI Overview citations across the sampled window.
  • Average citation position where the Overview exposes one, and ghost citations where a source is used without naming your brand.

How we sample it

The AI Overviews tracker queries Google's SERP through a paid vendor, one credit per keyword, on a user action and hard capped at the call site. Results carry the same treatment as every engine: a 95% Wilson interval, the disclosed sample size, and a provisional label below three samples. A failed pull writes no number rather than a filled-in one.

What we do not measure here

Stating the limit is the point. A number is only trustworthy next to the boundary of what it does not cover.

  • Referral traffic from AI Overviews. Most AI Overview click-throughs pass no referrer, so we cannot and do not report them as AI Overviews sessions. We measure citation, not clicks.
  • Gemini the assistant. Google-Extended feeds Gemini and AI Overviews training, but our citation measurement here is scoped to the AI Overview surface we actually sample.
  • Positions on a SERP layout that shifted between pulls. When the tracked keyword set changes, the run is marked not comparable rather than shown as movement.

The full method, with every denominator and error treatment, lives on how we measure. When another tool shows the vocabulary without the math, hold it up to measured vs asserted.

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Every surface we measure

Engines we sample