SEO vs AEO vs GEO: Generative Engine Optimization and AEO, Explained

If you have searched for help with marketing lately, you have seen three sets of letters: SEO, AEO and GEO, short for search, answer and generative engine optimization. Agencies throw them around like everyone already knows the difference. Most people don't, and that is fine. Here is the short version.

• SEO (search engine optimization) gets your pages ranked in Google's normal results.
• AEO (answer engine optimization) gets your page picked as the direct answer to a question.
• GEO (generative engine optimization) gets your business named inside answers that AI writes.

They overlap a lot. But each one asks a slightly different question about your website, so it helps to look at them one at a time.

What is SEO?

SEO is the work of getting your pages to rank when someone searches on Google or Bing. It covers three things: the words on the page match what people search, the site is technically easy for search engines to crawl, and other sites trust you enough to link to you.

Google publishes its own rules for this in its SEO Starter Guide. None of it is secret. The hard part is doing all of it, on every page, every month, without skipping the boring bits.

What is answer engine optimization (AEO)?

Answer engine optimization is about being the answer, not just a result. When Google shows a featured snippet, a People Also Ask box, or when a voice assistant reads one answer aloud, it has picked one page to quote. AEO is the work of making your page the easy pick.

In practice that means:

• Headings written as the real questions people type
• A clear, short answer right under each question, then the detail
• FAQ and other structured data, so machines know which text is the answer
• Facts, dates and sources, because engines quote facts, not adjectives

What is generative engine optimization (GEO)?

Generative engine optimization is the newest of the three. When someone asks ChatGPT, Perplexity, Gemini or Google's AI Overviews "who does X near me" or "what is the best tool for Y", the AI writes an answer and often names a few businesses. GEO is the work of being one of the names.

AI tools build those answers from pages they can read and trust. So GEO leans on a few extra things:

• Access. AI crawlers have to be allowed in. A surprising number of sites block them by accident in their robots file.
• One clear entity. Your structured data should describe one business, with one name, one set of services and one set of pages, all linked together. Many sites send five loose pieces of data that never connect.
• Plain-language files. Files like llms.txt give AI tools a clean summary of who you are and what you sell.
• Being cited elsewhere. AI answers lean on what other trusted sites say about you.

SEO vs AEO vs GEO, side by side

	SEO	AEO	GEO
Goal	Rank in results	Be the quoted answer	Be named by AI
Where it shows	Google and Bing results	Snippets, PAA, voice	ChatGPT, Perplexity, Gemini, AI Overviews
Main levers	Content, technical health, links	Question headings, short answers, FAQ data	Crawler access, connected entity data, citations
How you measure it	Rankings and clicks	Snippets and PAA wins	Whether AI answers mention you

Which one does your business need?

Honestly, all three, and in that order. SEO is the floor. A page that search engines can't crawl or don't trust will not be quoted as an answer, and it will rarely be named by AI. AEO comes next, because the same question-and-answer structure that wins snippets also makes your page easy for AI to read. GEO sits on top.

The good news is that SEO, answer engine optimization and generative engine optimization are one body of work, not three bills. If a provider quotes you three separate packages for SEO, AEO and GEO, ask which tasks are actually different.

How to check where you stand today

1. Search your own services. Google the main thing you sell plus your city. Note where you appear.
2. Ask the AI tools. Ask ChatGPT and Perplexity who they recommend for what you do. Note whether you are named.
3. Look at your robots file. Visit yoursite.com/robots.txt and look for lines that block GPTBot, PerplexityBot or ClaudeBot.
4. Look for question headings. Open your main service page. Does any heading match a question a customer actually asks?

If the answers are "not on page one", "not named", "blocked" and "no", you are not alone. That is where most small business sites start.

Want a person to walk through this with you? Book a short call and bring your website. We will tell you what we would fix first.

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