
Google’s AI Overviews Just Hit 40% of Searches. Here’s What That Means for Your Marketing.
Google AI Overviews now appear in 39.4% of U.S. desktop searches, up from 25.8% a year ago, and more of those answers now include clickable links. But new reporting shows some of those links open an AI chat instead of your website, so citation no longer guarantees a visitor. Business owners need to track AI visibility separately from clicks this quarter.
AI Search Just Crossed a Tipping Point
If it feels like fewer people are clicking through from Google lately, the data backs that up. Comscore’s Q2 2026 AI Intelligence Report, covered by Search Engine Land on September 22, 2026, found that AI Overviews now show up in 39.4% of U.S. desktop searches, up sharply from 25.8% in July 2025 (source: Search Engine Land, “Google AI Overviews now appear in 39% of U.S. desktop searches”).
The chatbot landscape is shifting too. ChatGPT still leads AI prompt volume but slid to roughly 50% of the market, down sharply from earlier in the year, while Google’s Gemini climbed to 30% (from 17% in January) and Anthropic’s Claude grew to 11% (from 2% in January). For a business owner, the takeaway is simple: optimizing for “Google” alone is no longer the whole job. Your customers are researching across at least three major AI surfaces, and each one pulls from different sources.
Why This Matters for a $1M-$10M Business
Search used to be a fairly reliable funnel: rank well, get clicked, get a lead. AI Overviews and AI Mode compress that funnel. Google increasingly answers the question on the results page itself, and a growing share of research and comparison shopping now happens inside a conversation, not a list of ten blue links.
The Citation Trap: More Links, Not Necessarily More Clicks
Here is the part that should change how you read your analytics this month. According to Peec AI data reported by Search Engine Journal on September 21, 2026, the share of AI Overviews containing inline external links jumped from near zero to 26.2% starting September 11, 2026, and has held in the low-to-mid 20s since (source: Search Engine Journal, “Google AI Overviews Have More Links, But Not All Reach The Web”).
That sounds like good news for anyone doing SEO or answer engine optimization (AEO) work. But the same reporting flagged a catch documented independently on the same day: some of that underlined, link-styled text inside AI Overviews does not lead to an external website at all. It opens a follow-up AI Mode conversation instead, keeping the user inside Google’s own chat interface.
In practical terms, your brand or article can be “cited” by Google’s AI without a single visitor reaching your site. If you are judging your content strategy purely by organic click-through rate, you may be underselling work that is actually building AI visibility and brand recall, just not the kind Google Analytics has historically measured well.
If You Sell on Shopify, Check Your Checkout Settings This Week
A second, more operational change is worth an immediate look if your business sells products online. Google has begun automatically enabling native AI checkout for eligible Shopify merchants, letting customers complete a purchase directly inside Google’s AI Mode or the Gemini app without ever landing on your website (source: Search Engine Land, “Google opens native AI checkout to eligible Shopify merchants”). This runs on the Universal Commerce Protocol, an open standard Google built with Shopify and other partners.
This is opt-out, not opt-in. If your store is matched to a Merchant Center account, eligible products can already be transacting through these AI surfaces, and some client-side analytics and custom pixel tracking are not supported in that checkout flow. That is a real measurement gap for anyone reporting on paid media or attribution. Review Shopify’s Sales Channels, then Agentic settings, and decide deliberately whether to allow it, not by default.
What To Do About It This Quarter
None of this means SEO or content marketing stopped working. It means the scoreboard changed. A few concrete moves for the next 90 days:
- Pull an AI-citation check on your top 10 revenue-driving pages: search your core topics in Google’s AI Mode, ChatGPT, and Gemini, and note whether your business is mentioned or linked at all.
- Rebuild key pages around direct, extractable answers near the top, followed by supporting detail, proof points, and pricing or process specifics AI engines can quote.
- Add or clean up FAQ and schema markup so your most-asked questions are structured for both search engines and AI assistants to lift cleanly.
- If you run Shopify, confirm your Agentic checkout settings match your actual attribution and customer-relationship strategy before assuming the default is fine.
- Stop measuring success by clicks alone. Track branded search volume, direct traffic, and AI referral sessions (where available) alongside inquiries and closed deals.
Marketing leadership decisions like these, tightening the link between what your site says and what AI engines can act on, are exactly where a fractional CMO or an experienced marketing partner earns their keep this quarter. If your team needs help auditing AI search visibility or restructuring content for AEO, TMC Marketing’s CMO Solution and digital marketing packages are built around exactly this kind of shift. You can also browse practical frameworks on the TMC Marketing blog.
The businesses that adjust their measurement and content structure now, before Q4 planning locks in, will have a real head start on competitors still reporting on last year’s click-through numbers.
Ready to build an AI-search-ready marketing plan for next quarter? schedule a discovery call with TMC Marketing.
Frequently Asked Questions
What percentage of Google searches now show an AI Overview?
AI Overviews appeared in 39.4% of U.S. desktop searches as of Comscore’s Q2 2026 data, reported September 22, 2026, up from 25.8% in July 2025.
Does a citation in an AI Overview always send traffic to my website?
Not always. Reporting from mid-September 2026 found that some linked text inside AI Overviews opens a follow-up AI Mode conversation instead of an external website, so a citation can occur without a click-through.
What is Google’s native AI checkout for Shopify merchants?
It is a feature, built on the Universal Commerce Protocol, that lets customers complete a purchase inside Google’s AI Mode or Gemini app without visiting the merchant’s website. It is enabled automatically (opt-out) for eligible Shopify stores linked to a Merchant Center account.
Should my business still invest in SEO if AI Overviews are taking clicks?
Yes. AI engines still need a source to cite, and businesses with clear, well-structured, and frequently updated content are more likely to be the source those engines pull from, even if the click behavior looks different than it did a year ago.
How often should a small business review its AI search visibility?
A quarterly audit is a reasonable minimum given how fast these features are changing, though checking after any major Google announcement, like the checkout and linking changes from September 2026, is worth the extra ten minutes.
Source References
- Search Engine Land: Google AI Overviews now appear in 39% of U.S. desktop searches (Sept 22, 2026)
- Search Engine Journal: Google AI Overviews Have More Links, But Not All Reach The Web (Sept 21, 2026)
- Search Engine Land: Google opens native AI checkout to eligible Shopify merchants (Sept 2026)
- Comscore: Comscore’s Latest AI Intelligence Report Shows Competition Intensifying as Claude and Gemini Gain Ground on ChatGPT (Sept 22, 2026)