AI DISCOVERY HUB

GEO vs SEO vs AEO.
What each one actually does.

Search Engine Optimisation makes you findable. Answer Engine Optimisation makes you quotable. Generative Engine Optimisation makes you representable. Here is how they fit together.

THE THREE DISCIPLINES

One ecosystem, three jobs.

SEO

SEO is the foundation

If your site is not crawlable, authoritative, and relevant in Google, it is unlikely to be cited by AI systems. SEO builds the base layer of visibility.

AEO

AEO is the structured answer layer

AEO makes your content look like an answer: clear headings, concise paragraphs, schema markup, and query-matched definitions. This is what gets pulled into AI summaries.

GEO

GEO is the broader authority layer

GEO ensures generative models understand who you are, what you do, and why you matter across the web. It includes entity consistency, brand mentions, and machine-readable context.

SIDE-BY-SIDE

How they differ, and where they overlap.

Dimension	SEO	AEO	GEO
PRIMARY GOAL	Rank pages in search results	Be extracted as a direct answer	Be cited and represented in generative outputs
WHERE IT SHOWS UP	Google, Bing, traditional SERPs	AI Overviews, ChatGPT, Perplexity, Gemini	Any generative AI summary, agent, or chat interface
KEY SIGNALS	Crawlability, authority, backlinks, keywords	Clear structure, query-matched headings, schema markup	Entity recognition, consistent facts, brand mentions, structured data
CONTENT FORMAT	Optimised pages, internal linking, meta tags	Self-contained answers, FAQ blocks, definition paragraphs	Structured knowledge, consistent entity claims, llms.txt
TIME TO TRACTION	Months for rankings and organic pipeline	Weeks to months for citation visibility	Months as authority and entity clarity compound

PRACTICAL CHECKLIST

What an AI-discoverable site actually has.

Most sites are invisible to AI not because they lack content, but because their content is not structured to answer questions. This is the fix order ADG Advisory uses.

✦A documented positioning statement so AI systems know what you claim.
✦A query map of the questions your buyers actually ask.
✦Self-contained answer blocks for your top 20 questions.
✦FAQPage and Article schema on priority pages.
✦An accessible llms.txt file summarising your business and policies.
✦Consistent entity facts across your site, LinkedIn, directories, and press.

Common questions.

What is the difference between SEO, AEO, and GEO?

SEO makes you findable in traditional search engines. AEO makes your content extractable as a direct answer by AI systems. GEO is the wider practice of making your brand understandable and citeable by generative AI models.

Do I still need SEO if I am optimising for AI search?

Yes. AI answer engines largely select sources from the same authority signals SEO builds: crawlability, relevance, and structured clarity. A site invisible to Google is usually invisible to AI too.

What content structure helps AEO and GEO?

Clear headings that mirror real questions, self-contained answer paragraphs, FAQ schema, lists and tables, and concise definitions all help AI systems extract and cite your content accurately.

How long does it take to show up in AI-generated answers?

Technical fixes and structured answers can be indexed within weeks, but authority and citation frequency compound over months. The Hexagram Diagnostic will show which layer needs attention first.

Can ADG Advisory implement all three at once?

Yes. ADG Advisory builds SEO as the foundation, AEO as the structured citation layer, and GEO as the broader authority layer, prioritised by what the diagnostic shows is actually broken.

Find out where your Signal stands.

The Hexagram Diagnostic scores your marketing architecture across six pillars, including the Signal pillar that covers SEO, AEO, and GEO. Free. 8 minutes. No signup.

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GEO vs SEO vs AEO.What each one actually does.