Generative Engine Optimization
How AI engines choose what to recommend
Buyers now ask ChatGPT, Claude, Perplexity, Gemini, Grok, and Copilot — and generated answers cite different sources than ranked links do. This is the playbook for becoming one of the citations, engine by engine, with every claim on this page checkable.
SEO vs AEO vs GEO — three layers, one stack
SEO
Search Engine Optimization
Earning position in ranked lists of links — Google and Bing's classic results. Still the substrate: AI engines retrieve from indexes that SEO health feeds.
AEO
Answer Engine Optimization
Being the extracted answer — featured snippets, People Also Ask, voice replies. The bridge discipline: answer-first formatting and question-shaped structure.
GEO
Generative Engine Optimization
Being cited and recommended inside generated answers — ChatGPT, Claude, Perplexity, Gemini, Grok, Copilot. Won with crawler access, fact density, and earned authority.
The research is blunt about the split: the overlap between Google’s top links and AI-cited sources has fallen below 20%, and more than a quarter of ChatGPT’s most-cited pages have zero Google organic visibility. Ranking and being recommended are now separate games.
Pick your engine — each one works differently
Crawlers, control tokens, and citation habits differ per engine. Each guide covers exactly how that engine finds sources and the steps that move your odds — including what honestly doesn’t work.
Get recommended by ChatGPT
Read the guide →ClaudeAnthropicGet cited by Claude
Read the guide →PerplexityPerplexity AIGet cited by Perplexity
Read the guide →GeminiGoogleGet recommended by Gemini & AI Overviews
Read the guide →GrokxAIGet recommended by Grok
Read the guide →CopilotMicrosoftGet recommended by Copilot
Read the guide →The universal GEO playbook
Five moves that raise citation odds on every engine — the same method GrowthBerry enforces mechanically for every page it publishes.
- 1Open the gatesEvery engine has crawlers, and blanket "block AI bots" rules from 2023 still silently remove sites from AI answers today. Know the difference between training crawlers (safe to block) and search/live crawlers (blocking = invisibility).
- 2Write question-shaped pagesAI engines fan a user's question out into sub-questions and retrieve the clearest answer to each. Pages whose H2s are the literal questions — with the answer in the first sentence beneath — win those retrievals.
- 3Make facts dense and attributableNamed statistics, verbatim quotes, primary-source citations. 2026 GEO research measured up to ~40% visibility gains from evidence density alone — it outperforms every classic ranking trick in generated answers.
- 4Ship the machine-readable layerllms.txt for assistants, FAQPage/Article/Organization schema for extractors, clean heading hierarchy, a sitemap that's actually true. This site runs all of it — and IndexNow, so new pages reach Bing-family engines in hours.
- 5Earn the mentions engines already trustComparison pages, review roundups, community threads: generated answers cite them constantly. One earned mention in a list an engine trusts can outweigh months of solo publishing.
GEO, answered plainly
What is generative engine optimization?
GEO is the practice of making your site citable and recommendable by AI engines — ChatGPT, Claude, Perplexity, Gemini, Grok, Copilot — through crawler access, question-shaped fact-dense content, machine-readable structure, and earned authority. It overlaps SEO but has its own rules: AI citations correlate weakly with classic rankings.
Is GEO different from SEO?
Yes, measurably: 2026 analyses put the overlap between Google's top links and AI-cited sources under 20%, and over a quarter of ChatGPT's most-cited pages have no Google organic visibility at all. SEO keeps you in the indexes; GEO decides whether generated answers actually use you.
How do I check if AI engines can read my site?
Your robots.txt decides it, crawler by crawler. Our free robots checker tests GPTBot, ClaudeBot, PerplexityBot, Google-Extended and CCBot explicitly — and the free audit runs the full 17-check readability review in about 60 seconds.
Can anyone guarantee my brand appears in ChatGPT?
No — and treat anyone who promises it as a red flag. There is no paid placement inside organic AI answers. What's real: raising the probability of citation with the playbook above, then measuring per-prompt visibility. That measurement loop is exactly what GrowthBerry automates.
Is your site visible to AI engines right now?
17 checks in about 60 seconds, no signup — crawler access, structure, schema, and answer-readiness, graded with exact fixes.