Your next customer might never Google you. Instead, they ask ChatGPT, Perplexity or Google's AI Overviews: "best aluminium hardware supplier for distributors" — and buy from whoever the AI recommends. SEO, AEO and GEO are the three disciplines that decide whether that recommendation is you.
SEO, AEO and GEO in one paragraph
SEO (Search Engine Optimization) helps your pages rank in Google's classic blue-link results. AEO (Answer Engine Optimization) makes your content the direct answer AI assistants give — the single answer in a featured snippet, voice reply or AI Overview. GEO (Generative Engine Optimization) gets your brand cited and recommended inside AI-generated answers across ChatGPT, Claude, Gemini and Perplexity. SEO wins clicks; AEO wins the answer; GEO wins the mention.
Why this matters now
Buyer behaviour has shifted. A growing share of research now happens inside an answer engine, where the buyer reads one synthesized answer and rarely clicks a link. Buyers form what marketers call "silent shortlists" in AI before they ever visit a website. If your business is absent from those answers, you are absent from the shortlist — no matter how well you rank on page one.
How AI engines choose what to cite
Research on answer-engine behaviour, including the original Princeton GEO study, shows AI systems favour sources that are easy to extract and quote. Pages with clear definitions, statistics, quotations and citations can gain up to 40% more visibility in generative responses. In practice, the engines look for:
- Direct answers first. The answer in the first sentence of a section, not buried in paragraph four.
- Clear entity definitions. Pages that state plainly what the business is, what it sells and where it operates.
- Structured, quotable content. Tables, lists and FAQ blocks are cited far more often than long prose.
- Trust signals. Mentions on third-party sites, reviews and original data make a source worth citing.
- Fresh facts. Current dates, prices and specifics beat vague claims.
What to do about it: a practical checklist
- Write one crisp definition of your business and put it on your homepage and about page. If an AI can't describe you in one sentence, it won't recommend you.
- Add Q&A content that answers the exact questions buyers ask, with FAQ schema markup so engines can extract it.
- Publish real numbers. Prices, timelines, quantities and results are quotable; adjectives are not.
- Get mentioned elsewhere. Reviews, directory listings and press mentions are the strongest GEO signal — AI trusts brands the wider web already trusts.
- Keep a llms.txt file on your site: a short, plain-text briefing of who you are, what you sell and how to contact you, written for AI crawlers.
- Don't block AI crawlers in robots.txt or your hosting settings. You can't be cited by engines you shut out.
Does AEO/GEO replace SEO?
No. Traditional SEO is the foundation everything else builds on — most AI engines retrieve candidate sources from the same web indexes that power Google rankings, so a page that already ranks well has a head start at being cited. Think of it as layers: SEO gets you indexed and ranked, AEO makes your content extractable as an answer, and GEO makes your brand the one worth citing.
Where to start
Start with the definition and the Q&A content — those two moves alone put most small businesses ahead of their competitors, since only a small minority of brands currently track or optimise for AI search at all. Then build the off-site mentions over time.
We build AEO and GEO into our SEO services: clear Q&A content, schema markup and factual pages that AI engines can quote — plus the classic technical SEO underneath. Ask us for a free audit and we'll show you what AI currently says about your business.
