AEO vs SEO: what actually changes

What is the core difference between AEO and SEO?

SEO competes for position in a ranked list; AEO competes to be the source a synthesized answer is built from. SEO's currency is authority and relevance signals accumulated over time. AEO's currency is extractability and corroboration: can a model lift your claim cleanly, and can it verify the claim elsewhere.

Which SEO work transfers directly to AEO?

All of the fundamentals: crawlability, indexation, site speed, clean information architecture, schema markup, and honest content on real topics. Answer engines retrieve through search indexes, so a page invisible to Google and Bing is invisible to every assistant built on them. Technical SEO is the shared foundation.

This is why "should I do SEO or AEO?" is usually a false choice. The technical layer gates both, schema serves both, and a well-structured page competes in both arenas simultaneously. The work only diverges above that foundation.

Where does AEO diverge from SEO?

Three places. Structure: models reward a 40 to 80 word direct answer under a question heading, where classic SEO tolerated slow builds. Proof: models corroborate claims across sources before repeating them, so unverifiable marketing copy is dead weight. Distribution: Bing indexation and third-party mentions carry weight SEO habits underrate.

The Bing point deserves its own sentence, because it is the cheapest fix on the list: ChatGPT and Microsoft Copilot both retrieve through Bing's index, and most small-business sites have never once submitted there. A site with strong Google presence and two pages in Bing's index has voluntarily forfeited half the assistant market.

The corroboration point is the deeper shift. Your own site saying "trusted by hundreds" is a claim; a directory listing, a review platform, and an independent article agreeing on your details is evidence. Answer engines weight evidence. That is also why review and listing work turns out to be AEO work in disguise.

Does ranking well on Google mean AI engines will cite you?

It helps and it is not sufficient. Engines retrieve from further down the results than most people expect, and a top-ranked page whose facts are buried in narrative can lose the citation to a lower-ranked page with a cleaner, verifiable answer. Ranking gets you into the candidate pool; extractability wins the citation.

The practical reading: if you already rank, restructuring existing pages (question headings, front-loaded answers, schema) is the highest-leverage AEO move available, because retrievability is already paid for. If you rank nowhere, AEO and SEO start in the same place: the fundamentals.

If the budget only covers one, which do you do?

Do the shared foundation first: technical health, indexation on both engines, schema, and answer-first content structure. That single investment competes in both arenas. Pure-SEO spend (link building) and pure-AEO spend (engine testing, corroboration building) can each wait until the foundation exists, because neither works without it.

This is how we structure our own pricing: the foundation is the build, and the ongoing program layers both disciplines on top with measurement you can check. If you want to know which side of the foundation your site is missing, the free audit answers exactly that.