Here is how to get your product recommended by ChatGPT, in three parts. First, make sure AI crawlers can physically read your site: OpenAI's GPTBot and OAI-SearchBot have to be allowed in your robots.txt and not blocked by your firewall, or nothing else matters. Second, earn mentions and reviews on third-party sites, because what others say about you is the strongest signal there is: in an Ahrefs study of 75,000 brands, branded web mentions correlated with AI visibility at 0.664, far ahead of backlinks or domain rating. Third, hand ChatGPT structured product data through a product feed, which since the OpenAI and Shopify integrations is a form you fill in, not a reputation you build.
That is the whole game. No secret file, no magic markup, and, spoiler for the section below, no llms.txt.
This guide is for the founder who owns the store, not the SEO professional selling GEO retainers. Almost everything written about AI search assumes you have an agency budget and a content team. You have a Shopify admin, a robots.txt you have never opened, and customers who keep saying "ChatGPT recommended a competitor". The full guide covers how ChatGPT actually chooses products (training data, live search, and the new shopping layer), a ten-minute workflow to audit where your brand stands today, the honest verdict on llms.txt, how to check whether AI crawlers can read your site at all, and a fix list ranked by effort, from a one-hour robots.txt check to the months-long work of earning mentions. Realistic timelines included, because this channel rewards patience more than tricks.