You can see what ChatGPT sends your store with a report you already have. In a guide published by Practical Ecommerce on October 11, 2026, Ann Smarty walks through it in GA4. Open Acquisition, then Traffic acquisition, choose "Session source / medium" in the drop-down below the graph, and type "gpt" in the search field. What remains is your ChatGPT referral traffic.
The number will probably look small beside organic search. Smarty's argument is about quality. Drawing on client sites she has optimized for AI answers, she writes that "ChatGPT traffic is often the most engaging source, even more than organic search." She presents that as her own experience and says she knows of no study on the question, so use it as a reason to look at your own engagement figures for that segment.
The second report in her guide is the more useful one. ChatGPT keeps the prompts people typed to itself, but GA4 records where those visitors landed. Under Engagement, then Landing pages, add a filter for "Session source / medium" containing "gpt". Each page in that list is one ChatGPT chose to send someone to, and as Smarty puts it, "Each page solves a problem." A visitor who lands on a comparison page was most likely weighing options. A visitor who lands on a single product page had probably been pointed to that product already. Read the top pages as a list of the questions ChatGPT believes you answer.
A survey published two weeks earlier says what those visitors expect to do once they arrive. YouGov polled more than 3,300 consumers in the UK and the US for ACI Worldwide, and The Paypers reported the results on September 25, 2026. More than half, 53%, said they were uncomfortable letting an AI assistant make purchases for them, and 7% would allow it under conditions they set in advance. Asked which AI shopping features they want, respondents put help with price at the top.
Interest in price drop alerts was higher among people aged 45 to 54, at 40%, than among those aged 18 to 24, at 27%.
So the shopper arriving from ChatGPT has usually used the assistant to compare and to find, and intends to finish the purchase on your site. The pages in your landing page report carry that sale. Check that each one gives the price, the availability and the answer to the question that brought the visitor there near the top of the page, because that visitor has already done the comparing.
Common questions
How do I see ChatGPT traffic in GA4?
Go to Acquisition, then Traffic acquisition, choose "Session source / medium" in the drop-down, and type "gpt" in the search field. The rows that remain are sessions referred by ChatGPT.
Can I see what people asked ChatGPT before they visited?
ChatGPT does not share prompts with the sites it sends visitors to. The landing page is the best available clue. Filter the GA4 Landing pages report by a session source containing "gpt" and read each page as the answer to a likely question.
Is ChatGPT traffic better than organic search traffic?
Ann Smarty writes that it is often the most engaging source on the client sites she works with, and she notes there is no study behind that yet. Compare engagement for the two sources in your own GA4 property before drawing a conclusion.
Are shoppers ready to let AI buy for them?
Most say they are not. In the YouGov survey for ACI Worldwide, 53% were uncomfortable with an AI assistant making purchases for them, and 7% would allow it under preset conditions. Price drop alerts and price comparisons were the most wanted features, at 35% each.
Sources
Practical Ecommerce: How to track ChatGPT traffic in GA4
The Paypers: ACI Worldwide finds shoppers cautious about AI-led purchases