What is GEO (generative engine optimization)?

What does GEO mean?

GEO stands for generative engine optimization. A generative engine writes its own answer instead of only showing a list of links, and pulls information from web pages it sometimes links to.

GEO has two goals: getting your business named in the answer text, and getting your site used as a source. Either can happen without the other.

How is GEO different from SEO?

GEO builds on SEO but measures success differently. A page that can't be found and read is rarely cited, so the technical foundation is the same.

• ▸Goal – SEO: a high position in search results. GEO: being mentioned and cited in AI answers.
• ▸Where – SEO: Google and Bing. GEO: ChatGPT, Perplexity, Gemini and Google's AI answers.
• ▸Result – SEO: clicks to your site. GEO: mentions, citations and sometimes clicks.
• ▸Key content – SEO: keywords and relevance. GEO: direct answers, facts and a clear sender.
• ▸Measurement – SEO: rankings and traffic. GEO: share of questions where you're mentioned or cited.

Where does the term GEO come from?

The term spread through the research paper "GEO: Generative Engine Optimization" by Aggarwal et al. (including Princeton University), published in 2023 and presented at KDD 2024. The researchers tested how changes to texts affected their visibility in AI-generated answers.

The study found that adding citations, expert quotes and concrete statistics often increased visibility, while keyword stuffing had little effect. These are results from a test environment, not a guarantee of how any specific AI service works today.

How do AI services choose their sources?

None of the major AI services has published exactly how they pick sources. Many search the web in the background, read a number of pages and summarize. That's why it matters that your site can be indexed, that AI bots may read it, and that your content answers clearly.

Models are also influenced by what other sites say about you: reviews, directories, articles and forums. Check whether AI bots can reach your site with our free AI bot access checker.

What factors affect GEO?

These are the factors most often highlighted, based on research and the services' own guidelines:

• ▸Access: robots.txt lets in crawlers like Googlebot, Bingbot, OAI-SearchBot and PerplexityBot.
• ▸Direct answers: the question is answered in the first sentence, with questions as headings.
• ▸Facts and sources: numbers, prices, examples and verifiable references.
• ▸Clear sender: about page, contact details and structured data (Organization, FAQPage).
• ▸Mentions: other trustworthy sites writing about your business.
• ▸Freshness: updated content with dates.

How do you get started with GEO step by step?

1. List 5–10 questions customers ask before they buy. 2. Measure how you show up in AI answers today. 3. Make sure AI bots can read your site. 4. Create or improve one page per question with a direct answer. 5. Add structured data and clear contact information. 6. Work on mentions on other sites. 7. Measure again after a few weeks.

How do you measure GEO results?

Ask the same customer questions in several AI services and count how many answers mention you and how many use your site as a source. Answers vary over time, so compare trends rather than single answers.

ai-seoranking.com does this automatically: eight customer questions are asked in ChatGPT, Perplexity, Gemini and Google's AI answers, and you get a free AI Visibility Score in about five minutes.