Short answer
GEO, or generative engine optimization, is the work of making your content more likely to be cited, quoted or mentioned in answers written by generative AI, such as ChatGPT, Google AI Overviews and Perplexity. It builds on SEO rather than replacing it. The term is new, the evidence is still thin, and nobody can promise a citation.
What does GEO mean?
A generative engine is a system that finds information and then writes an answer in its own words, usually with links or names of the sources it used. ChatGPT search, Google's AI Overviews and AI Mode, Perplexity, Claude and Microsoft Copilot all work this way. GEO is the practice of raising the chance that your pages are among those sources, or that your business is named in the answer.
The term was popularized by a 2024 research paper from Princeton, IIT Delhi and other researchers, which tested nine ways of changing a page to see whether a generative engine would feature it more. Since then agencies and tools have adopted the label, often with their own definitions.
What did the GEO research actually find?
In that paper, adding statistics and cited sources raised a page's visibility in generative answers by up to roughly a third, and keyword stuffing was the worst of the nine tactics tested. That fits common sense: specific, sourced claims are easier to quote than vague ones. Other evidence points the same way, with limits:
- Ahrefs studied about 1.9 million AI Overview citations and found that about 76% of the cited pages ranked in Google's top ten. That links ranking and citation without proving that one causes the other, and it covers only Google's feature.
- SE Ranking found that pages with many concrete data points were cited more often than data-light pages, and that sections of roughly 120 to 180 words between headings did best. It is an observational study by a vendor.
- A critical survey in July 2026 concluded that evidence standards in GEO are still unsettled. Most percentages in vendor blogs are unverified, so be wary of precise claims.
Which GEO strategies are worth doing?
- Stay crawlable and indexable. Check that robots.txt, your host's bot protection and your page code let search and AI crawlers read your text.
- Rank in ordinary search first. Most of the pages that AI Overviews cite come from the top ten.
- Lead with the answer. Put a short, direct answer under a question-style heading, then the detail.
- Add facts that people can check: statistics, dates, prices and named sources.
- Publish what only you know. Your own data, photos, process and case details are hard for a generic page to copy.
- Be consistent about who you are. Use the same business name, address and service descriptions across your site, profiles and listings.
- Earn mentions elsewhere. Reviews, directories, local press and community answers show that other people talk about you.
- Keep pages fresh. Update facts and show the date.
Which GEO claims should you ignore?
- llms.txt. Google says it does not use the file for Search, and Ahrefs found that 97% of the files in its 137,210-domain study received zero requests in May 2026. No major AI answer engine had publicly confirmed reading it as of early 2026.
- Schema as a citation trick. Ahrefs compared 1,885 pages that added JSON-LD with matched control pages and saw no meaningful lift in citations. Schema still helps with rich results and with making your business clear to machines.
- Chunking or Markdown copies of your pages. Google's guide says neither is required.
- Keyword stuffing. It was the weakest tactic in the Princeton study.
- Promises of a number one place in ChatGPT. There is no fixed ranking there, and answers differ between people and days.
Is GEO different from SEO?
Mostly it is SEO with more attention to evidence and reputation. Google's May 2026 guide says AI Overviews and AI Mode use its core Search ranking systems and that no special GEO hacks are needed on top of the SEO fundamentals. Other assistants run their own systems, so it makes sense to let their crawlers in and to be mentioned widely. AEO vs GEO vs SEO lays the three side by side, and what AEO means covers the answer-box side.
How do you know whether GEO is working?
Measure outcomes, not activity. List 10 to 20 questions a customer might ask, put them to several assistants on different days, and note whether you are mentioned and linked. Answers change from run to run and from person to person, so look at the pattern over weeks, not at one result. Check your analytics for visits that come from assistants too.
Arcline Premium automates this. It puts your customers' likely questions to AI assistants that search the live web and stores each answer with the sources, so you can see whether you are mentioned, and it cannot promise that you will be. Read what AI visibility is or see Features.