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SEO vs AEO vs GEO: what's the difference?
The three acronyms are often used as synonyms. They describe different layers of the same goal — being found and chosen — and each answers a different question.
By Prithvi Somavarapu · Updated · 2 min read
The short version
| SEO | AEO | GEO | |
|---|---|---|---|
| Optimizes | Pages | Passages within pages | The brand’s representation across sources |
| Main question | Can people and crawlers find this page? | Is this the clearest answer to that question? | Do AI answers mention and recommend us? |
| Where the work happens | Your site + links to it | Your pages | Your site + third-party sources |
| Success looks like | Rankings, clicks | Quoted, attributed passages | Mentions, citations, recommendations |
| Measured with | Search Console, analytics, rank tracking | Featured answers, citations by query | Repeated prompt sampling across AI platforms |
| Key levers | Technical health, relevance, authority | Answer-first writing, structure, clarity | Entity consistency, original information, references |
SEO: being findable
Search engine optimization makes a site crawlable, indexable, relevant and trusted, so its pages appear for valuable searches. It includes technical work (crawling, rendering, speed), on-page work (titles, content, internal links) and authority (earned links and mentions).
Example: fixing a JavaScript-rendered product catalogue so Google can index it, then improving category pages so they rank for buyers’ searches.
AEO: being the answer
Answer engine optimization works at the level of the passage. Answer engines — featured snippets, AI Overviews, voice assistants, AI chat — look for a clear, self-contained answer to a specific question. AEO makes sure that answer exists on your page, near the top of the relevant section, in plain language, with evidence.
Example: a pricing page that opened with three paragraphs of brand story is rewritten to state the plans and price ranges in its first two sentences, with a comparison table below.
GEO: being referenced and recommended
Generative engine optimization recognises that AI answers are assembled from many sources, not only yours. It covers entity clarity (consistent brand facts), original information worth citing, and presence on the third-party sources AI answers use — reviews, comparisons, news, directories, communities.
Example: a software brand missing from “best tools” answers finds those answers cite two review platforms; it completes accurate profiles there and invites genuine customer reviews.
How they fit together
Think of them as layers. SEO gets your pages into the indexes AI systems retrieve from. AEO makes those pages useful once retrieved. GEO makes sure the rest of the web tells a consistent, favourable story when answers look beyond your site. Weakness in a lower layer limits the layers above it.
Verdict
- Choose SEO focus when pages aren’t indexed, ranking or getting traffic.
- Choose AEO focus when you rank but aren’t quoted or cited for questions you answer.
- Choose GEO focus when you’re cited but rarely recommended, or AI answers describe you wrongly.
Most businesses need all three, in that order of priority.
FAQ
SEO vs AEO vs GEO: frequently asked questions
Is GEO replacing SEO?
Which should a business start with?
Are AEO and GEO the same thing?
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Prefer email? prithvi@prisol.org