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What is Generative Engine Optimization (GEO)?

Generative Engine Optimization, or GEO, is the work of making sure AI assistants can find, read and correctly repeat information about your business. This guide explains the term in plain words, how it differs from SEO and what you can do this week.

By the FactHound team. Reviewed October 11, 2026.

Where the term comes from

The name comes from a 2023 research paper, “GEO: Generative Engine Optimization”. A generative engine is a tool that writes an answer instead of listing links: ChatGPT, Perplexity, Google’s AI Overviews and others. You will also see “answer engine optimization” (AEO) and “AI search optimization”. They mean much the same thing.

How GEO differs from SEO

  • SEO aims for a place in a list of links. GEO aims to be the source of a written answer.
  • In search, a person sees your page and judges it. In an AI answer, the person may never see your page. They see what the assistant says about it.
  • SEO rewards being found. GEO also needs being read correctly. A wrong price in an answer is worse than no answer.

The two overlap. A page that search engines can crawl and understand is also easier for AI tools to use. GEO does not replace SEO.

The three parts of GEO

  1. Access. Can AI crawlers reach your pages? Your robots.txt file decides.
  2. Readability. Are your facts in the HTML your server sends, in plain text and in structured data? Don’t count on a crawler running JavaScript.
  3. Accuracy. When an assistant answers a question about you, is the answer true? This is the part most businesses never check.

What GEO is not

  • It is not a way to control what an AI assistant says. Nobody outside those companies can.
  • It is not a ranking trick. Be wary of anyone who promises mentions or placements.
  • It is not done once. Your hours and prices change, and so do the assistants.

What you can do this week

  1. Ask two or three assistants the questions your customers ask. Write down every wrong answer.
  2. Find the page behind each wrong answer. Fix your own pages first.
  3. Check that your robots.txt doesn’t block the AI crawlers you want.
  4. Put your key facts in the page itself, in text and in schema.org structured data.
  5. Ask again in a few weeks.

Where FactHound helps, and where it doesn’t

What FactHound does

  • The free check covers access and readability for your homepage: crawler rules, text without JavaScript, key facts, structured data, llms.txt and page basics.
  • FactHound publishes facts you have verified on your own website as schema.org structured data and gives you an llms.txt file.
  • On Pro and Agency, daily monitoring asks an AI model about your business and flags answers that disagree with your verified facts.

What it doesn’t do

  • FactHound doesn’t measure how often AI mentions you, and it doesn’t promise rankings.
  • It can’t change pages you don’t control.
  • Daily monitoring is an estimate from one AI model. It is not a recording of any assistant.

Start with the free check

No signup. Enter your website to see whether AI crawlers can read it and which questions it can’t answer.

Run the free check