AEO vs. SEO: What's the Difference? And Why Your Business Needs Both.

If you’re a fan of great ads from a bygone era, you may remember the famous “Aaron Burr – Got Milk?” commercial, created by Goodby, Silverstein & Partners. It’s a classic example of two good things that are better together when there’s an important goal to achieve.

The spot features an eccentric historian sitting alone in an archive surrounded by books and artifacts about the duel between Alexander Hamilton and Aaron Burr. He’s listening to classical music on a transistor radio while building the mother of all peanut butter sandwiches. Just as he shovels about two-thirds of that sandwich into his mouth, the radio station announces a trivia contest with a $10,000 cash prize.

The question: Who shot Alexander Hamilton?

The screen cuts to the many bookshelves and displays focused on Alexander Hamilton and Aaron Burr before cutting to the telephone.

It rings. Our guy’s eyes grow like saucers. He quickly picks it up.

The announcer asks, “For $10,000, who sh…”

“Awooon Buuuuh!” our guy declares with a flourish.

But with his mouth glued shut by peanut butter, the words are indecipherable. He tries again, fumbling for the milk carton, which is empty. The radio host apologizes and hangs up.

The commercial cuts to the iconic final slate: “got milk?”

Got Milk? is just as relevant today as it was 30 years ago, for many reasons. Just like milk and peanut butter sandwiches, your business needs both AEO and SEO to be decipherable online and capture audiences across the entire digital search landscape.

What Is AEO?

Google is still synonymous with online search, but people ask questions in many places and on many platforms. AEO, or Answer Engine Optimization, means optimizing your brand and content so it can be found, understood, and surfaced by answer engines (the new large-language-model-powered search engines like ChatGPT and others) when someone asks a question.

Search engines like Google now provide AI-generated overviews above the blue links on traditional SERPs, while platforms such as ChatGPT, Gemini, Copilot, Perplexity, Claude, and Grok let people ask complex questions conversationally and receive synthesized answers.

That changes what it means for a business to be visible online. It’s no longer just about your website ranking at the top of page one on a search engine, which is what SEO has traditionally aimed for.

Answer engines interpret a question, gather information, and generate an answer instead of just providing links. Businesses mentioned or cited in that answer gain a new kind of search visibility, and AEO is designed to address it. Head over to AEO by GoEpps for our 90-second video rundown of what this all means.

What’s the Difference Between AEO and SEO?

It’s only natural that people are seeking to understand the difference between AEO and SEO, but a better question is: “How are AEO and SEO related?” Or, “How does SEO inform and bolster AEO?”

Still, these two approaches do have notable distinctions. Here are the big three:

1. The Target of Optimization Is Different

SEO optimizes a web page to rank as a clickable result in a list of search results (SERPs). You want your business to appear at the top of the SERPs for the searches your customers conduct so they’ll click through to your website.

AEO optimizes for your business or content to be cited or referenced in an AI-generated response, surfaced in an AI Overview, or selected as the source for a direct answer on an LLM.

So instead of working through a series of links to assemble information, people can now ask longer, more specific questions and receive an answer that brings all the information together in one blurb.

Google itself is moving rapidly in this direction. AI Overviews now have more than 2.5 billion monthly active users, while AI Mode has surpassed one billion monthly users. Google says people are also asking entirely new kinds of questions through these experiences.

2. The Success Metric Is Different

With SEO, some of the most familiar measures of success are rankings, clicks, organic traffic, and the actions visitors take after reaching your website. AEO adds another element: Is your business being selected, cited, or recommended in the answer?

For a simple informational query, an AI-generated response may provide everything the searcher needs without a website visit. For more complex searches, the answer can become the starting point that determines which businesses, products, services, or sources the user investigates next.

This is why visibility itself has become an important metric. But clicks haven't disappeared entirely. Google continues to send billions of clicks to websites every day, so the goal now is to measure that extra layer of visibility before a click happens. As this continues to shake out, you might find that your organic traffic (the number of visits to your website) declines, even as other metrics start to rise.

3. The Content Structure Is Different

Traditional SEO rewards comprehensive, useful pages that demonstrate topical depth, cover relevant keywords and subjects, earn authoritative backlinks, and make it easy for search engines and people to understand what a page is about.

AEO also values content that makes useful information clear and easy to identify.

But how that information is structured is only part of the equation. The quality and credibility of the information still matter. Google continues to emphasize E-E-A-T: Experience, Expertise, Authoritativeness, and Trustworthiness. Of the four, Google considers trust the most important.

E-E-A-T isn't a single Google ranking factor. Instead, Google's systems look for a combination of signals that can help identify content demonstrating these qualities. That means original information, first-hand experience where it's relevant, demonstrated expertise, credible sourcing, accurate information, and clear authorship can all help establish why a source deserves to be trusted.

And that remains important as search becomes more AI-driven. Google's latest guidance says its generative AI features are rooted in the same core search ranking and quality systems used for traditional search (this is key).

Across answer engines, that can include concise answers to specific questions, descriptive headings, logical organization, accurate supporting information, and structured data where appropriate. A self-contained answer that directly addresses a question gives an answer engine clear information to understand and potentially surface.

But there’s an important distinction, particularly when it comes to Google.

Google's latest guidance says businesses do not need special AI markup or a special schema type for their content to appear in AI Overviews or AI Mode. Google also advises against formatting content into smaller pieces because you think AI needs “chunked” information. Its systems can understand different topics and passages within a page.

Structured data still has a role in SEO, especially when helping pages qualify for applicable rich results. Still, Google says it should accurately reflect the content people can see on the page.

The larger principle is straightforward: make the information easy for people to find and understand, and make the site technically easy for search systems to crawl, index, and interpret.

That brings SEO and AEO together.

Why AEO Doesn’t Replace SEO

Google makes it clear that AEO does not replace SEO. The same SEO practices businesses have relied on remain relevant to its generative AI search experiences. To appear as a supporting link in AI Overviews or AI Mode, a page must still be indexed and eligible to appear in Google Search with a snippet.

In other words, don't abandon SEO so you can “do AEO.” Build on it. Peanut butter and milk, remember?

Google’s AI systems can also use a process called “query fan-out,” conducting multiple related searches across subtopics and data sources before assembling a response and identifying supporting web pages. Your potential customer may ask one question while the answer engine searches many behind the scenes.

How Do You Know if Your Business Is AEO-Friendly?

In today’s digital environment, businesses often don't know where they stand.

That's why we built AEO by GoEpps.

AEO by GoEpps measures your business against your four closest competitors across 43 metrics in 10 categories each month. We track visibility across ChatGPT, Gemini, Copilot, Perplexity, Claude, and Grok, and combine that information into an AEO SuperScore from 1–100.

You can see where your business leads, where competitors are ahead, and what is changing over time, with prioritized recommendations that we provide to help improve your visibility.

Find out if your business is visible or invisible in today's search. Book a free consultation with the AEO experts at GoEpps.