Post-purchase searches top Google AI Overview rates across the funnel

The news: AI Overviews appears in 86.7% of Google searches as of April, up from 56.9% a year earlier, per AI search visibility platform Peec AI, which analyzed over 500,000 commercial and buying-intent searches.

The data reveals how search behavior itself is shifting. Short, keyword-style queries, the way people learned to search a decade ago, are the only category where Overviews fall behind.

  • Two-word queries trigger AI Overviews just 64.6% of the time, the lowest examined percentage by word count, suggesting keyword-style searching is the one habit Google’s AI handles least confidently.
  • Five-word queries hit 78.5%; by 8 to 10 words, the rate climbs to 87.7%, reflecting how conversational search is already the norm, not the outlier.
  • Queries of 11 to 15 words peak at 89.1%, which signals in-depth questions, not just keywords, are the ones Google’s AI is best built to serve.

Even geography indicates AI Overviews’ growth as a default. Inside the EU, where regulatory constraints are strictest, Overviews still appears in 76.0% of searches. Outside the EU, it’s 90.3%. 

Zooming in: Peec’s analysis revealed that post-purchase search queries are more likely to trigger AI Overviews than queries in any other funnel stage. 

  • Post-purchase and top-of-funnel awareness queries trigger Overviews at 94.4% and 94.0%, respectively. 
  • Bottom-of-funnel decision queries hit 91.2%, and mid-funnel consideration lags at 84.7%.

This range of results across the purchase journey could be because consideration queries are often the least predictable—they require weighing multiple vendors, pricing tiers, use cases, and user reviews in ways that may be challenging to condense into a single AI summary. 

Implications for brands: Awareness and post-purchase now carry equal weight in consumer attention, so brands must treat both as equally important. 

Marketing teams may stop optimizing content at the point of sale, handing off onboarding and support to teams without an SEO mandate. Given the high number of post-purchase AI Overviews instances, this handoff represents a significant missed opportunity.

Help documentation, onboarding FAQs, and setup content—typically owned by product or customer success teams and not always a high priority for SEO and generative-engine optimization (GEO)—should now be a priority. 

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