Guide

GEO vs SEO vs AEO: the difference, and which to prioritize

Q: SEO, AEO, GEO — what's the one-line difference for each?

SEO (Search Engine Optimization) optimizes to rank in a list of links on a search engine: the goal is the click. AEO (Answer Engine Optimization) optimizes to provide the direct answer to a question — historically Google's featured snippets, now also assistant answers: the goal is to be the boxed answer. GEO (Generative Engine Optimization) optimizes to be cited inside an answer generated by an AI like ChatGPT, Perplexity, Gemini or Claude: the goal is the attributed citation. All three share a common base — a crawlable, indexed, fast, well-structured site — but aim at three different moments of the journey: appearing in a list, occupying the answer box, or being the source an AI lifts. None replaces the others; they form a continuum where the fundamentals are shared and the specific signals stack on top.

Q: Comparison table: SEO vs AEO vs GEO

Across five key dimensions: Goal — SEO targets the click, AEO targets the boxed answer, GEO targets the citation in an AI answer. Surface — SEO targets Google's list of links, AEO featured snippets and People Also Ask, GEO the answers of ChatGPT, Perplexity, Gemini, Claude and AI Overviews. Optimized unit — SEO works the page and domain, AEO the answer block for a question, GEO the self-contained citable passage. Main levers — SEO: keywords, backlinks, domain authority; AEO: structured data, concise answers, question-answer format; GEO: llms.txt, Q&A schema.org markup, sourced facts, freshness. Success metric — SEO: position and CTR; AEO: presence in the box; GEO: presence and fidelity of the citation. In practice GEO and AEO overlap so much that many use them as synonyms; the real dividing line is between optimizing for a click (SEO) and optimizing to be the answer (AEO + GEO).

Q: Do they overlap, and do you have to choose?

They overlap heavily and you don't have to choose: the fundamentals are shared, so doing one well already advances the others. A crawlable, indexed site serves SEO and the retrieval stage of GEO alike. Direct, structured answers serve AEO and GEO citability alike. Schema.org data serves all three. The right strategy isn't to pit the acronyms against each other but to build in layers: first the technical fundamentals (crawl, speed, structure, server-rendered HTML), then structured data and direct answers, then the signals specific to generative engines (llms.txt, Q&A markup, sourced facts, freshness). What you prioritize depends on where your traffic comes from and goes: if your prospects increasingly find you through AI answers rather than blue links, GEO rises in your priorities — but never by abandoning the SEO fundamentals that gate everything else.

Q: Where should you start, given your goal?

If your traffic mostly comes from Google's classic links, start with SEO: technical fundamentals, quality content, authority. If you're chasing featured snippets and position zero, add AEO: question-answer structure, structured data, concise answers. If you notice ChatGPT, Perplexity or Gemini answering on your behalf and citing your competitors, prioritize GEO: allow AI crawlers, publish an llms.txt, add Q&A schema.org markup, and rewrite your key pages as direct, sourced answers. The good news is these efforts don't cannibalize each other — each layer reinforces the others. For the most mechanical part of GEO, a tool like Citeable generates the llms.txt and Q&A schema.org markup from your real content in minutes, consistent with each other, which hands you the most technical step and lets you focus on the editorial side.

Updated · July 5, 2026 — Joffrey Bonifay

What is GEO?→

SEO, AEO, GEO: three acronyms for three ways of being found, often confused. This guide draws the line clearly, shows where they overlap, and helps you decide which to prioritize for your goal — no needless jargon.

SEO, AEO, GEO — what's the one-line difference for each?

SEO — optimizes to rank in a list of links (goal: the click). AEO — optimizes to provide the direct answer to a question, snippets and assistants (goal: be the boxed answer). GEO — optimizes to be cited inside an AI-generated answer (goal: the attributed citation).

All three share a common base (crawlable, indexed, fast, structured) but aim at three different moments: appearing in a list, occupying the box, or being the source an AI lifts. None replaces the others — it's a continuum.

Comparison table: SEO vs AEO vs GEO

Dimension	SEO	AEO	GEO
Goal	The click	Be the boxed answer	The AI citation
Surface	Google list of links	Snippets, People Also Ask	ChatGPT, Perplexity, Gemini, Claude
Unit	Page / domain	Answer block	Self-contained passage
Levers	Keywords, backlinks	Structured data, concise answers	llms.txt, Q&A schema, sourced facts
Metric	Position, CTR	Presence in the box	Presence + citation fidelity

GEO and AEO overlap so much that many use them as synonyms; the real dividing line is between optimizing for a click (SEO) and optimizing to be the answer (AEO + GEO).

Do they overlap, and do you have to choose?

They overlap heavily and you don't have to choose: the fundamentals are shared, so doing one well advances the others. A crawlable site serves SEO and GEO retrieval; direct answers serve AEO and GEO citability; schema.org serves all three.

Build in layers: technical fundamentals → structured data + direct answers → generative signals (llms.txt, Q&A markup, sourced facts, freshness). What you prioritize depends on where your traffic comes from: if it increasingly comes from AI answers rather than blue links, GEO rises — without abandoning SEO fundamentals.

Where should you start, given your goal?

SEO if your traffic mostly comes from Google links (fundamentals, content, authority). AEO on top if you chase snippets and position zero (Q&A structure, structured data, concise answers). GEO as a priority if ChatGPT, Perplexity or Gemini answer on your behalf and cite competitors: allow AI crawlers, publish an llms.txt, add Q&A schema.org markup, rewrite key pages as direct, sourced answers.

These efforts don't cannibalize each other. For the most mechanical part of GEO, Citeable generates your llms.txt + Q&A schema.org markup from your real content in minutes, consistent with each other — the technical step is done, you focus on the editorial.