AnswerReadyWhat is AEO? Answer engine optimization explained
Updated
More people now ask an AI assistant instead of typing into a search box. This guide explains how those assistants choose which websites to quote, and what you can do about it.
What is answer engine optimization (AEO)?
AEO is the practice of making a website easy for AI systems to find, understand and cite when they answer questions. The "answer engines" are ChatGPT search, Perplexity, Google AI Overviews and AI Mode, Gemini, Claude and Microsoft Copilot. It is also called GEO (generative engine optimization), AI SEO or LLM SEO.
Why does AEO matter for a business?
When someone asks an AI assistant "who's the best accountant near me?" it reads a handful of sources and writes one answer, often naming only one or two businesses. If your site is blocked, unreadable or never answers the question plainly, the assistant quotes someone else and the customer may never see a list of links at all.
What helps a website get cited by AI assistants?
Seven things come up consistently. The first four are on your own website; the rest happen elsewhere.
- Access: AI search crawlers aren't blocked by robots.txt or a firewall, and your text is in the HTML rather than loaded by JavaScript.
- Answer-shaped content: headings phrased as real questions, a direct 1–3 sentence answer right below, then the detail.
- Structured data: Organization or LocalBusiness, Service or Product, FAQPage, and Article with an author and dates.
- A clear entity: the same name, address, phone and description everywhere, plus an About page that says who you are.
- Third-party mentions: reviews, press, directories, Reddit and "best of" lists. These often matter as much as on-site work.
- Freshness: current information and visible "updated" dates.
- llms.txt: a proposed summary file for AI tools. Cheap to add, but unconfirmed by AI companies.
Is AEO replacing SEO?
No. AI search tools lean on search indexes and the same quality signals, so a site that does SEO well already has most of the foundation. AEO adds a focus on being quoted: clear answers, structured facts and access for AI crawlers.
How long does AEO take to work?
Access fixes (robots.txt, firewall rules) can take effect as soon as crawlers revisit, often within days to weeks. Content and structured-data changes depend on how often AI tools re-crawl you. Reputation on other sites builds over months.
Check your own site
The free AEO audit runs 25 checks in about 30 seconds and shows exactly what to fix first.
Frequently asked questions
What does AEO stand for?
AEO stands for answer engine optimization: optimizing a website so AI-powered answer engines such as ChatGPT, Perplexity and Google AI Overviews can find, understand and cite it.
Is AEO the same as GEO?
Mostly. GEO (generative engine optimization) is a newer name for the same goal, getting cited in AI-generated answers. AEO is older and originally covered featured snippets and voice assistants too.
How do I check my AEO?
Run a free AEO audit: it checks whether AI crawlers can reach your site, whether your text is readable without JavaScript, your structured data, and whether your pages answer questions directly.
Related guides
AEO vs SEO
SEO gets your page ranked as a link; AEO gets your answer quoted inside ChatGPT, Perplexity and Google AI Overviews. A side-by-side comparison and what to do first.
What is GEO?
GEO (generative engine optimization) is optimizing content to appear in AI-generated answers from ChatGPT, Gemini, Perplexity and Google AI Overviews. Where the term comes from and what works.
AEO checklist
A practical answer engine optimization checklist: crawler access, rendering, structured data, answer-shaped content, entity details and freshness. The same 25 checks our free audit runs.