AEO vs SEO: The Real Difference, and Which One to Do First
AEO vs SEO comes down to this: SEO gets your website ranked in Google’s list of links. AEO, answer engine optimization, gets your business named inside the answer when someone asks ChatGPT, Google’s AI Overviews, Perplexity or Claude who to hire. SEO wins the click. AEO wins the recommendation. Most established businesses need both, and they share one foundation, so you build them together.
By M. Curtis McCoy, web design, SEO and AEO expert. Building websites since 1995.
AEO vs SEO at a Glance
AEO vs SEO, line by line.
On a phone, swipe the table sideways to see both columns.
| SEO | AEO | |
|---|---|---|
| Stands for | Search engine optimization | Answer engine optimization |
| Where you show up | A ranked link on Google or Bing | A named mention inside an AI answer |
| What the buyer does | Searches, compares links, clicks | Asks a question, acts on the answer |
| What you win | The click and the visit | The recommendation, often with no click |
| What the engine reads | Keywords, links, page experience | Clear answers, structured data, who you are and who vouches for you |
| How you measure it | Rankings, clicks, calls from organic search | Mentions and citations in AI answers, branded searches, calls that say “ChatGPT sent me” |
| Biggest risk if ignored | Competitors take the first page | Competitors become the default answer |
| Time to results | Months, compounding | Months, compounding, and earlier movers keep the lead |
AEO vs SEO vs GEO: What Each One Is
SEO, search engine optimization, is the work that earns your pages a place in search results. Google crawls your site, decides what each page is about and how trustworthy it is, then ranks it against everyone else. The buyer sees ten links and picks one. Your job is to be the link they pick.
AEO, answer engine optimization, is the work that earns your business a place inside the answer. Answer engines (ChatGPT, Google’s AI Overviews and AI Mode, Perplexity, Claude, Gemini, Copilot) read many sources, then write one reply. The buyer often never sees a list. If your business is not named in that reply, you were not in the running. Google explains how its own answers pick sources in its guide to AI features in Search.
GEO, generative engine optimization, is a newer name for the same territory, used most often when people talk about ChatGPT, Gemini and other generative tools. In practice, AEO and GEO overlap almost completely. Treat them as one discipline with two names. I break down the difference in What Is GEO?
— M. Curtis McCoy
AEO vs SEO: Where They Overlap
Most of the work counts twice. These do both jobs at once:
- Crawlable, fast pages. If Google or an AI crawler cannot load the page, neither can rank or quote it.
- One clear topic per page. Engines rank and cite pages that answer one question well.
- Structured data. Schema tells search engines and AI systems exactly who you are, what you do and where. See What Is Schema Markup?
- Proof. Reviews, case studies, press and credentials raise trust with both.
- Mentions on other trusted sites. Links help SEO. Mentions help AI decide you are the safe answer.
That overlap is why I never sell them as separate projects.
AEO vs SEO: Where They Split
The Format of the Answer
SEO competes for a spot on a list. AEO competes to be the one sentence the engine writes. There is no position six in an AI answer.
How the Page Should Read
SEO pages can warm up. AEO pages lead with the answer in the first two sentences, then prove it. Engines quote the part that answers cleanly.
What Counts as Authority
SEO leans on links. AEO leans on consistency: the same name, services, location and facts everywhere the engine looks, from your site to your business profile to articles about you.
Who Decides
Google’s ranking systems decide SEO. For AEO, several systems decide, each with its own crawler and sources. Blocking one crawler in robots.txt can remove you from one assistant entirely.
What You Track
SEO has mature reporting: rankings, clicks, calls. AEO reporting is younger. You test the questions your buyers ask, record who gets named, and watch branded searches and calls.
The Cost of Waiting
In SEO you can catch up with better pages. In AEO, the business an engine learns to trust first keeps getting named. Waiting costs more here.
AEO vs SEO: Which Should You Invest In First?
Start with the shared foundation, then lean where your buyers already are.
- Your site has technical problems (slow, broken pages, pages blocked from Google): fix those first. They block both. If your site looks great but nobody finds it, start with why your website is not showing up on Google.
- You sell locally and buyers call within days: lead with SEO and your Google Business Profile. Add AEO answers to every service page as you go.
- Buyers research for weeks and ask a lot of questions (law, medical, custom building, B2B): lead with AEO. Those buyers ask assistants before they ever search.
- You already rank on page one: AEO is your next lever. You have the trust; now make it quotable.
- You have neither: build both at once. It costs less than doing them in sequence, because the same page work serves both.
Not sure which camp you are in? The Website Analyzer grades your site on Google visibility and AI search readiness separately, in about a minute.
What AEO Work Looks Like on a Real Website
- Rewrite the top of every service page so the first two sentences answer the buyer’s question.
- Add Organization, Person, Service and FAQ structured data that matches what the page says.
- Open robots.txt to the search and user-triggered AI crawlers.
- Build question pages for the exact questions buyers ask assistants.
- Make your name, services and location match everywhere they appear online.
- Test the buyer’s questions in ChatGPT, Google and Perplexity every month and record who gets named.
The full list is in The AEO Checklist. For engine-by-engine steps: How to Rank on ChatGPT, How to Rank in Google AI Overviews and How to Get Cited by Perplexity.
AEO vs SEO: Questions Business Owners Ask
No. AEO sits on top of SEO. AI answer engines still pull from pages that search engines can crawl and trust, so weak SEO usually means weak AEO.
SEO earns a ranked link that a buyer clicks. AEO earns a named mention inside an AI answer that a buyer acts on, often without clicking anything.
SEO targets search results. AEO targets AI answers. GEO is a newer name for optimizing for generative AI tools like ChatGPT and Gemini, and in practice it overlaps almost completely with AEO.
Fix the technical foundation first, because it serves both. Then lead with SEO if buyers call you within days, and with AEO if they research for weeks.
Usually, yes. Clear answers, structured data and consistent business facts help Google understand a page, and Google’s own AI features draw on its search index.
Expect months, not days, the same as SEO. Structured data and crawler access can register within weeks; earning repeat mentions takes longer and compounds.
Ask them the questions your buyers ask, in ChatGPT, Google AI Mode, Perplexity and Claude, and note who they name. The Website Analyzer also checks whether AI crawlers can read your site.
No. Most of the work overlaps, and splitting it creates two teams changing the same pages. One team should own both.
Who Wrote This
M. Curtis McCoy has built websites since 1995, three years before Google existed. Through Assertive Holdings, LLC he builds and manages the websites and search presence of established companies such as Pencil Log Pros and Frontier Log Homes, and he is Editor-in-Chief of News Wire Magazine.
Find Out Where You Stand on Both
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