AEO vs SEO: what’s the difference, and do you need both?

For twenty years, getting found online meant one thing: ranking on Google. Now a growing share of buyers ask ChatGPT, Perplexity or Google’s AI for an answer instead, and they may never see a list of links at all. That’s where answer engine optimization (AEO) comes in. Here’s what it is, how it differs from SEO, and why you don’t have to choose.

What SEO does

Search engine optimization helps your pages rank in search results. When someone searches “commercial roofing contractor Cedar Rapids”, SEO decides whether your site shows up on the first page, and where.

The basics haven’t changed much: a site search engines can crawl, a page for each thing you sell, content that matches what people search for, and other reputable sites linking to you. The reward is a click to your website.

What AEO does

Answer engine optimization helps AI assistants understand your business well enough to name it in an answer. When someone asks “who are the best commercial roofers near Cedar Rapids?”, the assistant reads a handful of sources and writes a short reply. AEO decides whether you’re in it.

The reward is different too. Sometimes the buyer clicks a cited source. Often they just remember the name, then search for you directly or call.

SEO earns you a place in the list. AEO earns you a mention in the answer. Buyers now use both, sometimes in the same afternoon.

Where they overlap

Most of the work is shared. Both depend on:

• A site machines can read. Crawlable pages, clean HTML, nothing important hidden in images or scripts.
• Clear pages for each service. A vague “what we do” page doesn’t rank, and it doesn’t get quoted either.
• Structured data. Schema markup tells search engines and assistants exactly what your company is, what it offers and where.
• Reputation. Reviews, directory listings and mentions on other sites make you a safer choice for both.

If your SEO foundation is solid, you’re most of the way to good AEO.

Where they differ

The differences are about emphasis.

• Answers over keywords. SEO pages are often built around a search phrase. AEO rewards pages that answer a question directly, in a sentence that could be quoted on its own.
• Consistency across the web. An assistant cross-checks what it reads. If your website, Google Business Profile and directory listings describe you differently, it’s less confident about naming you.
• Being described, not just linked. Links still matter for SEO. For AEO, what matters is how other sources describe you: “a certified aerospace parts distributor in Austin” is more useful to an assistant than a bare link.
• Measurement. SEO has rankings and traffic. AEO has no Search Console of its own yet, so you measure it by asking the assistants the questions your buyers ask, every month, and noting who gets named.

Topic	SEO	AEO
Goal	Rank in search results	Be named in AI answers
Reward	A click to your site	A mention, often followed by a search for you or a call
What helps most	Pages that match searches, links from reputable sites	Direct answers, consistent facts, mentions that describe you
How you measure	Rankings, clicks and leads (Search Console, analytics)	Asking assistants your buyers’ questions every month

How to cover both without doing the work twice

Treat AEO as a layer on top of good SEO, not a separate project.

1. Fix the foundation once. Crawlability, page structure and structured data serve both.
2. Write every service page answer-first. Open with who you are, what you do and for whom. Add a short FAQ with real questions buyers ask.
3. Make your facts consistent. Same name, description, address and phone everywhere you’re listed.
4. Earn mentions, not just links. Industry directories, associations, local press and partner pages that describe what you do.
5. Measure both. Track rankings and leads from search, and keep a monthly log of what assistants say about you.

Do you need both?

If buyers find you online at all, yes. The good news is that one well-built website does most of the work for both. What’s left is a little extra attention to answers, consistency and how the rest of the web describes you.

Frequently asked questions

Is AEO the same as GEO?

Mostly. You’ll also see “generative engine optimization” (GEO) and “AI search optimization”. They all describe the same goal: being understood and recommended by AI assistants.

Will AI search replace Google?

Nobody knows how the split will settle. Google itself now shows AI-generated answers above its results. The safe bet is a site that works well for both.

Can I do AEO without SEO?

Not really. Assistants mostly find businesses by searching the web, so if search engines can’t find and understand you, assistants usually can’t either.