AI search
What is AEO and GEO? A plain-English guide to AI search optimization
Key takeaways
- AEO (Answer Engine Optimization) and GEO (Generative Engine Optimization) make your site the source AI tools quote.
- Most of the work is solid SEO, plus answer-first content, valid schema and AI crawler access.
- AEO targets direct answers; GEO targets citations inside AI-written answers.
- Measure with AI referral visits, a monthly question check and branded search.
AEO (Answer Engine Optimization) and GEO (Generative Engine Optimization) are the work of making your website the source that AI tools quote. When someone asks ChatGPT, Perplexity, Gemini or Google's AI Overviews a question, the answer cites a handful of pages. AEO and GEO are about being one of them.
The good news: most of it is solid SEO done properly, plus a few habits that make your pages easier for AI to read, trust and lift from. This guide covers what matters and what to ignore.
What do AEO and GEO mean?
AEO is about being the direct answer to a question: the featured snippet, the People also ask box, the voice assistant reply. GEO is about being cited inside answers that AI writes from several sources, like ChatGPT search, Perplexity and Google AI Overviews. The two overlap heavily, which is why most teams treat AEO and GEO as one piece of work.
How AEO and GEO differ from SEO
| Aspect | SEO | AEO | GEO |
|---|---|---|---|
| Goal | Rank in the results | Be the direct answer | Be cited in AI answers |
| Where | Google and Bing results | Snippets, voice, People also ask | ChatGPT, Perplexity, AI Overviews |
| Measure | Rankings and clicks | Answer boxes won | AI citations and referrals |
The foundations are the same: if a page is not indexed, fast and trusted, it is unlikely to be cited. What changes is the shape of the content and how you measure success.
How AI tools choose which sources to cite
No AI company publishes a full recipe, and answers change from day to day. But the patterns are consistent. AI answers tend to cite pages that:
- answer the exact question in plain words, near the top of the page;
- are already indexed and ranking for related searches;
- come from a brand described consistently across the web;
- contain specific, checkable facts rather than vague claims;
- can be reached by the crawler in the first place.
Google's guidance on AI features and your website confirms that its AI answers draw on pages from the normal index.
Seven AEO steps to start with
- List the questions your buyers ask. Sales calls, support emails and People also ask boxes are the best sources.
- Answer first. Put a two or three sentence answer at the top of each key page.
- Use question headings. Write headings the way people ask, so each section stands on its own.
- Add valid schema. Organization, Service, Product and FAQ markup that matches the page.
- Check AI crawler access. Make sure robots.txt and your firewall do not block Googlebot, Bingbot, GPTBot or PerplexityBot by accident.
- Publish an llms.txt file. A short, plain summary of your site and its key pages for AI assistants.
- Keep brand details consistent. The same name, services and contact details everywhere.
How to measure AEO and GEO
Track visits from AI tools in GA4, where they show up as referrals from chatgpt.com, perplexity.ai and similar. Keep a fixed list of 20 to 30 buyer questions and check each month which AI tools cite you. Watch branded searches and conversions too: people often discover you in an AI answer and search for your name later.
AEO mistakes to avoid
- Rewriting pages for machines until they read badly for people.
- Blocking AI crawlers in a firewall without realising it.
- Adding schema for content that is not on the page.
- Expecting quick, guaranteed citations. AI answers change often.
Where to start with AEO
Start with the five pages that matter most to your revenue. Rewrite their openings as direct answers, fix their schema and confirm they are crawlable. That alone puts you ahead of most competitors. Then read our checklist for getting cited in Google AI Overviews, or let our AEO and GEO team do it with you.
A quick audit you can run today
Pick your five most important pages and check each one against these questions. Any "no" is a quick improvement.
| Question | Why it matters |
|---|---|
| Does the page answer its main question in the first two sentences? | Easy to quote |
| Are headings written as questions people ask? | Sections stand on their own |
| Is the schema valid and matching? | Clear meaning for machines |
| Can search and AI crawlers reach it? | No access, no citation |
| Are your business details consistent? | Trust and accuracy |
What kind of content gets cited most
Content that gets cited tends to be specific and practical: clear definitions, step-by-step instructions, comparison tables, honest pros and cons, and real numbers such as prices, timeframes and limits. Opinion pieces and generic overviews are cited less often, because there is nothing precise to quote. If you want to be the source, publish the most useful, clearly structured answer to the questions in your field.
Summary
In short: AEO and GEO make your site the source AI tools quote. Build on solid SEO, answer questions clearly at the top of key pages, keep schema valid, allow AI crawlers and measure citations every month.
Who benefits most from AEO and GEO
Businesses whose customers research before they buy benefit most: professional services, software, healthcare providers, trades with high-value jobs and ecommerce brands with detailed products. If your buyers ask questions before they call, AEO puts your answers in front of them at the moment they are deciding.
Frequently asked questions
What is the difference between AEO and GEO?
AEO is about being the direct answer, such as a featured snippet or voice reply. GEO is about being cited inside AI-written answers. The work overlaps heavily.
Does AEO replace SEO?
No. AEO and GEO build on SEO. Pages that are not indexed, fast and trusted are unlikely to be cited.
Can I guarantee ChatGPT will mention my business?
No one honestly can. You can improve the signals that make citations more likely and track progress monthly.
How long does AEO take?
Technical fixes and content changes can be made in weeks. Citations usually build over a few months as pages are recrawled.
Do I need llms.txt for AEO?
It is optional and low cost. It helps tools that choose to read it, but crawlable, clear and trusted pages matter far more.
Which AI tools should I track?
Start with Google AI Overviews, ChatGPT, Perplexity and Gemini, since they are the most widely used today.
Is AEO only for big brands?
No. Small businesses with clear, specific answers in their niche can be cited, especially for local and specialist questions.
Do AI answers link to my site?
Many do. Google AI Overviews, Perplexity and ChatGPT search usually show source links, which can bring visits.
Is AEO the same as voice search optimization?
Voice search is one part of AEO. AEO also covers featured snippets, People also ask boxes and AI-written answers.
What tools help with AEO?
Search Console, GA4, a schema validator and a simple spreadsheet of buyer questions you check across AI tools each month.
How much does AEO cost?
It depends on how many pages need work. Many businesses add AEO to an existing SEO plan rather than paying for it separately.
What does GEO stand for?
GEO stands for Generative Engine Optimization: improving your pages so AI tools that write answers, such as ChatGPT and Perplexity, cite them as sources.
Is GEO different from AI SEO?
People use the terms loosely. GEO usually means optimizing to be cited inside AI-generated answers, which is one part of what many call AI SEO.
Does GEO work for ecommerce?
Yes. Clear product details, comparisons, honest pros and cons and accurate structured data help AI tools describe and cite products.
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