SEO vs. AEO, and Why You Now Need Both

This question comes up on almost every call. A business ranks well on Google, the traffic looks healthy, and then someone asks the version that matters now. When a customer asks AI who to hire, do we come up? It's fair to wonder, because ranking and getting named by AI aren't the same thing, and more of your customers are asking the second way.

The results page itself is changing under everyone. In 2025, Pew Research Center studied real Google searches and found that when an AI summary shows up, people click a traditional result about half as often, 8 percent of the time versus 15 percent without one. The answer now arrives before the click, and the businesses named inside it are the ones that get called.

So ranking and getting recommended by AI are two different games. Search engines rank your pages. AI engines decide which businesses to name, based on what the wider web says and trusts about you. A business can own the number one result on Google and still never surface when a customer asks ChatGPT, Gemini, Claude, Perplexity, and Google AI. That gap is the difference between SEO and AEO, answer engine optimization, and it's why you now need both.

Start with what each one is actually optimizing. SEO, search engine optimization, works to rank your pages in the list of results, so a person scanning that list is more likely to click yours. The whole contest happens on the results page, and it ends when a human chooses a link.

AEO, answer engine optimization, works to get your business named inside the answer an assistant writes. There's no list to climb. The assistant reads the web, decides which businesses to mention, and hands back a short, pre-vetted shortlist. That contest ends inside the response, before anyone clicks anything. Same customer, same question, two completely different ways of being chosen.

Here's the part that surprises people who've worked hard on their rankings. Being at the top of Google doesn't mean the AI will name you. An assistant runs a different selection process, and it pulls from far more than the ranked results.

The numbers bear this out. A 2025 analysis of AI Overview citations found that only about half of what AI cites overlaps with the top 100 organic results at all, so the rest comes from pages that don't rank near the top. Even the number one result gets cited only around 58 percent of the time. A strong rank helps your odds, but it's neither required nor enough on its own.

Why the gap? An answer engine hunts for a business it can locate, read clearly, and vouch for across the whole web, not just the pages that won the ranking race. If your facts are thin or clash from one site to the next, a competitor the model trusts more takes the mention, even when you outrank them.

If AEO is a different game, it rewards different moves. Classic SEO leans on keywords, links, and technical health. Those still matter as a base, but they aren't what tips an answer your way.

Researchers have measured this directly. In 2025, Ahrefs studied 75,000 brands and found that whether an assistant names you tracks most closely with how often the rest of the web mentions your brand, ahead of backlinks or domain authority, the very metrics classic SEO chases hardest. Being talked about across the web, on sources a model already trusts, is what tips an answer your way.

For a local business, that turns into a short list. Say plainly what you offer, where you operate, and who you serve, in sentences a model can quote. Keep your name, address, hours, and services identical everywhere the web mentions you. Earn reviews and mentions on sources the model already trusts. And label your facts with local schema markup so a machine reads them without guessing. That isn't a growth hack. It's the groundwork that makes your business easy for a model to quote, and it's what getting recommended by AI is built on.

None of this means SEO is over. The opposite, really. A fast, crawlable, well-structured site is the foundation an answer engine reads from, so good SEO is the price of entry. AEO is the layer you add on top, aimed at the assistant that now sits between your customer and your website.

That's the trap in an SEO-only view. An SEO tool stops at traditional search. It shows you organic rankings and site metrics, and it goes quiet on the question that increasingly decides the sale, whether AI recommends you at all. You can spend months climbing to page one and never learn that ChatGPT sends every caller to a competitor. The fix starts by seeing what the assistants say about you, then closing the gaps that surface.

The fix is to watch both, the way you'd watch anything that drives revenue. Keep your organic rankings and site metrics, and put the AI answer right next to them, so your whole search picture sits in one place, old and new.

That's what Lighthouse Local's AI visibility tracker is built to do. It keeps your familiar search metrics and adds the part SEO tools miss, whether ChatGPT, Gemini, Claude, Perplexity, and Google AI name you when customers ask, tracked over time so you see movement instead of guessing. To find the quickest wins on your own site first, run our free AI visibility audit, which scores your on-site signals and hands back a ranked fix list in about a minute. When you're ready to watch both sides for good, Lighthouse Local for Business is where it lives, whether you run one location or fifty, and our plans scale with you. Ranking on Google got you found. Being named by AI is what gets you chosen, and now you can watch both from one place.