GEO for e-commerce: how I optimized a product page to appear in ChatGPT, Gemini and Perplexity answers

A step-by-step case study with before/after measurements

Reading time: 20 minLast updated: February 2026

You invest time and money in SEO for your PrestaShop store. Your product pages rank well on Google. Yet a quiet revolution is reshuffling the deck: more and more consumers no longer search on Google. They ask ChatGPT, Gemini or Perplexity directly which product to buy.

And when these AIs answer, your product page is nowhere to be found.

This is exactly the problem I faced with an e-commerce client. In this article, I walk you through the complete process I followed to get a PrestaShop product page to appear in AI engine answers — step by step, with measured before and after results.