The short answer
SEO (search engine optimization) aims to rank your pages in Google and Bing. AEO (answer engine optimization) aims to have AI tools like ChatGPT, Perplexity and Google’s AI Overviews name you and cite you in the answers they write. SEO wins the click from a list of links. AEO wins the mention inside the answer, often before anyone sees a link.
AEO vs SEO, side by side
| SEO | AEO | |
|---|---|---|
| Goal | Rank a page as a link | Be named and cited in the answer |
| Where it shows up | Google and Bing results | ChatGPT, Perplexity, Gemini, Claude, Copilot, AI Overviews |
| What the user sees | Ten links to choose from | One written answer, a few sources |
| Unit of work | Keyword → page | Question → answer → sources |
| Content that wins | Comprehensive pages matching search intent | Direct answers, clear facts, comparisons, statistics |
| Off-site signal | Backlinks | Mentions on the sites AI reads (reviews, lists, forums) |
| Measured by | Rankings, impressions, clicks | Share of answers, position named, citations, AI referrals |
| Speed | Weeks to months | Weeks for fixes, months for new pages |
Where they overlap
AI answer engines search the web before answering, then read the pages that rank. So most SEO work feeds AEO directly:
- Pages that crawlers can fetch and that render without JavaScript.
- Clear titles, headings and structure.
- Fast pages and clean sitemaps.
- Authority from other sites linking to and mentioning you.
What AEO adds
- Answer-first writing. A plain one-to-two sentence answer at the top of each page, so it can be quoted.
- Fact control. Your prices, plans and features correct on your site and on the third-party pages AI reads.
- Comparison content. “X vs Y” and “alternatives” pages, which AI tools cite heavily for buying questions.
- AI crawler access. OAI-SearchBot, PerplexityBot and Claude-SearchBot allowed, plus an llms.txt.
- Answer tracking. Measuring the answers themselves, because rankings alone can’t tell you whether ChatGPT names you.
Which should you do first?
If AI crawlers can’t read your site, fix that first. It’s quick, and nothing else works until it’s done. Our free AEO audit checks it. After that, do both together: SEO gets you read, AEO gets you named. That is why AEOIndex runs them as one plan.
New to the topic? Start with what AEO is, or see who AI recommends today in the AEO Index.
