What is AEO (answer engine optimization)?

What does AEO mean?

AEO means writing and structuring your pages so an AI assistant picks them as a source when answering the questions your buyers ask. Ask ChatGPT for the best invoicing tool for freelancers and it composes one answer, names a few businesses, and cites a few pages. AEO is the work of becoming one of those pages, and one of those names.

Definitions vary, so ours stays narrow: the buyer's question and the assistant's answer, not training data or brand sentiment. If a page answers a real question plainly and an assistant can fetch it, that page is doing AEO.

Is AEO the same as GEO?

Yes, in practice: GEO (generative engine optimization) and AEO describe the same work under two labels, which is why our invite form says "SEO, GEO or AEO". We say AEO because what the buyer receives is an answer to a question, not a generation.

How is AEO different from SEO?

AEO writes for a different reader. Classic SEO writes for a person scanning a results page and competes for a click; AEO writes for a language model assembling one answer and competes for the sentence it lifts and the name it mentions. They overlap heavily, because most assistants search a web index before answering, and Google's guidance on its AI features says the same search foundations apply to AI Overviews and AI Mode.

Where AEO adds requirements, they are about extraction. A model needs the answer near the top, under a heading phrased the way the question is asked, in a paragraph short enough to quote whole. It also needs the facts about your business to agree across your site and the third-party pages it reads; a model that finds three descriptions of you may pick none.

How do answer engines pick what to quote?

Most answer engines search first, retrieve a handful of pages, and extract the answer in a single pass, so a page gets one chance to be understood. They differ in when they search: Perplexity retrieves pages for nearly every answer and lists its sources, ChatGPT often answers from memory and cites pages only when its search layer runs, and Google AI Overviews draw on pages Google already indexes.

Two words matter here. A business is mentioned when the answer names it, and a page is cited when the answer links to it as a source. They come apart constantly: an assistant can name you from memory without citing anything, or cite a roundup that lists you without naming you. CiteRank records both, so you can see which one you are winning.

Expect the answer to move. Across 2,961 prompt runs on ChatGPT, Claude and Google's AI, SparkToro found under a 1 in 100 chance that ChatGPT or Google's AI lists the same brands in any two answers to the same prompt. One check is a snapshot. A dated series of checks is evidence.

What do answer engines reward?

Answer engines reward pages they can quote without editing: a short summary at the top, headings phrased as questions, a complete answer in the first sentence under each heading, paragraphs short enough to lift whole, and internal links that show depth on the topic.

CiteRank scores every article it writes against six checks: a TL;DR near the top, question-shaped H2s, an answer-first sentence under each one, three or more internal links, citable structure (lists, short paragraphs, enough distinct sections), and JSON-LD that mirrors the visible text so the page parses without guessing. That last check is a parsing aid, not a citation lever. Google's AI features page states: "There's also no special schema.org structured data that you need to add." In May 2026 Ahrefs tracked 1,885 pages that added schema against 4,000 matched control pages and found no meaningful citation uplift on Google AI Overviews, AI Mode or ChatGPT. If anyone sells you structured data as the fix, show them that study, or our Google AI Overviews guide.

Can AI crawlers see your site?

Not always, and it is the first check, because no writing helps a page an assistant cannot fetch. Each engine publishes its crawler names: OpenAI lists OAI-SearchBot, GPTBot and ChatGPT-User, Anthropic lists ClaudeBot, Claude-SearchBot and Claude-User, and Perplexity lists PerplexityBot and Perplexity-User. Google AI Overviews need no separate crawler: a page qualifies once indexed and eligible for Search, and Google-Extended governs Gemini training and grounding, not inclusion in Search. The index-building crawlers respect robots.txt, so one inherited disallow rule can remove you from an engine's search layer.

Three checks cover it. Read yourdomain.com/robots.txt for any rule that catches the names above. Then check your CDN or firewall bot settings, which override robots.txt: from 15 September 2026 Cloudflare's default settings block crawlers it classes as Training or Agent on pages that show ads, while Search crawlers stay allowed. Finally, request a page with a crawler's user-agent string and see whether you get a 403. More in our guides to Perplexity's crawler and CDN blocks and how ChatGPT decides what to cite.

How do you check where you stand today?

Ask the engines your buyers' questions in a fresh session and write down what comes back, dated. Use the questions people type before they know your name, such as "best [category] for [customer]", note whether you were named, in what order and citing which sources, and repeat the same list weekly. The method and a record table are in how to check what ChatGPT says about your business.

That loop is what CiteRank runs: it finds your buyers' questions, checks ChatGPT, Claude, Gemini, Perplexity and Google AI Overviews, writes answer-first articles scored against the six checks above, publishes them to WordPress or a webhook, tracks Google clicks through Search Console, and keeps a dated record of every check with who was named, in what order, which sources were cited and an excerpt of the answer. The score is the share of checks that named you, explained in how CiteRank scores AI visibility.

What does it cost?

Agencies quote $1,500 to $2,500 a month for small-business AEO and tools cost far less; what answer engine optimization costs breaks down what each option buys and why sellers' price guides deserve suspicion.