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Aashish Khadka
Aashish Khadka

SEO vs AEO vs GEO: What's the Difference and Where Should You Focus?

By Aashish KhadkaPublished 7 min read

SEO vs AEO vs GEO: What's the Difference and Where Should You Focus?

Every few months, someone announces that SEO is dead. First it was voice search, then featured snippets, now AI. Suddenly there are new acronyms everywhere: AEO, GEO, LLMO, AIO. Agencies are selling "GEO packages". Business owners are confused.

So let's clear it up. In this post, I'll explain what SEO, AEO and GEO actually mean, how they overlap, what's genuinely different, and, most importantly, where a small business should actually focus its time.

Spoiler: you don't need three separate strategies. But you do need to understand how AI is changing what "being found" means.

The Simple Definitions

Term

Stands for

Goal

Where it shows up

SEO

Search Engine Optimization

Rank in search results and get clicks

Google and Bing's normal results

AEO

Answer Engine Optimization

Be the direct answer to a question

Featured snippets, People Also Ask, voice assistants

GEO

Generative Engine Optimization

Be cited or recommended in AI-generated answers

Google AI Overviews and AI Mode, ChatGPT, Perplexity, Claude, Gemini

Think of them as three ways of being found:

  • SEO: "Here are ten websites that might help you."

  • AEO: "Here's the answer, taken from this website."

  • GEO: "Here's a summary I wrote using these sources, and here's who I'd recommend."

How They Compare

SEO

AEO

GEO

What "winning" looks like

Ranking high in results

Your answer shown directly

Your brand cited or recommended by AI

What the user sees

A list of links

One highlighted answer

A written answer with sources

Main success metric

Rankings, clicks, traffic

Snippet ownership, visibility

Citations, mentions, AI referrals

Content style that wins

Complete, helpful pages

Clear, direct answers to questions

Clear facts, structure and trusted third-party mentions

How established

Decades of experience and tools

Several years, well understood

New and still changing fast

The key point: they overlap massively. AEO is really a part of good SEO, and GEO builds on the same foundation. Google itself says its AI features rely on the same core SEO best practices, with no special AI files or markup required.

SEO: The Foundation Everything Else Needs

SEO is still the base layer. If search engines and AI crawlers can't reach, understand and trust your pages, nothing else works.

What matters most:

Google's AI Overviews and AI Mode draw on Google's normal search index. So if you're not indexed and trusted in regular search, you're very unlikely to appear in Google's AI features either.

AEO: Be the Clear Answer

AEO focuses on questions. When someone asks "how long is the Poon Hill trek?", search engines and voice assistants want one clear answer they can show or read out.

How to optimise for it:

Do this

Example

Use real questions as headings

"How long is the Poon Hill trek?"

Answer directly in the first 1–2 sentences under it

"Most people complete the Poon Hill trek in 4 days from Pokhara."

Then add detail, context and exceptions

Shorter and longer versions, who each suits

Use lists and tables for steps and comparisons

Day-by-day table, cost table

Cover the follow-up questions

Collect them from People Also Ask

This is simply clear, well-structured writing, which is also good SEO and good GEO.

GEO is about AI tools that write an answer and cite sources, like ChatGPT, Perplexity, Claude, Gemini and Google's AI features. Two things are different here:

  1. AI tools often pull several sources and combine them, so you're competing to be one of the cited sources, not just position one.

  2. AI tools form a view of your brand from the whole web, not just your website: reviews, news, community discussions, directories and comparison articles.

How to optimise for it:

Area

What to do

Access

Don't accidentally block AI search crawlers (like OAI-SearchBot, PerplexityBot or Claude-SearchBot) in robots.txt or your firewall, if you want to appear in those tools

Readable pages

Make sure your main content is in the page's HTML, not only loaded by JavaScript

Extractable content

Clear headings, direct answers, facts, tables and lists AI can quote accurately

Original value

Your own data, experience and examples, which give AI something unique to cite

Entity clarity

Consistent business name, details and profiles everywhere; structured data [Internal link: Schema Markup Explained]

Third-party mentions

Reviews, press, community recommendations and listings on trusted sites

Freshness

Dated, updated content, especially for prices, rules and comparisons

The biggest difference from classic SEO: what others say about you matters even more. A business that's genuinely recommended across reviews, articles and communities is much easier for AI to recommend.

Where Should a Small Business Focus? A Priority Plan

You don't need three teams or three budgets. Work in this order, because each layer builds on the one before:

Priority

Focus

Why first

Key actions

1

SEO foundation

Without it, nothing else works

Fix indexing and speed, build helpful pages, set up Search Console

2

Local presence and reviews

Fast wins for local businesses, and AI tools use them

Complete Google Business Profile, collect honest reviews, consistent listings

3

Answer-first content (AEO)

Easy to apply to content you're writing anyway

Question headings, direct answers, FAQs, tables

4

Mentions and authority (GEO)

Builds what AI tools look for

PR, community participation, partnerships, original data

5

AI-specific checks

Small but important

Check AI crawler access, test prompts monthly, track AI referrals

If you do steps 1–4 well, you're already doing most of what "GEO" is.

How to Measure AI Search Visibility

Measuring AI visibility is still messy, but you can start for free:

Method

What it shows

Search Console generative AI reports (rolling out since June 2026)

How often your pages appear in Google's AI Overviews and AI Mode

Analytics referrals

Visits from chatgpt.com, perplexity.ai, claude.ai, gemini.google.com and similar

Monthly prompt testing

Ask 10–20 questions your customers would ask in ChatGPT, Perplexity and Google AI Mode; note who gets cited

Paid AI visibility tools

Tracking at scale, worth it only once you're actively working on this

Record your prompt tests in a simple spreadsheet each month: the question, the tool, who was cited, and whether you appeared. Over time, that's your GEO scorecard.

GEO Myths to Ignore

Myth

Reality

"SEO is dead, only GEO matters now"

AI search depends on the same foundations. Google's AI features use its normal index

"You need an llms.txt file to appear in AI"

Google has said it doesn't use llms.txt. It may help some tools, but it's optional, not a magic switch

"GEO needs special AI markup"

Google says no special files or markup are needed for its AI features

"You can guarantee ChatGPT recommendations"

Nobody controls AI answers; you can only improve your chances

"Blocking all AI bots protects you"

Blocking AI search crawlers can remove you from their answers. Decide per bot type

"Write for AI, not humans"

Clear, helpful content for people is exactly what AI tools cite

FAQs About SEO, AEO and GEO

What is the difference between SEO and GEO?

SEO aims to rank your pages in search results so people click. GEO aims to get your brand cited or recommended inside AI-generated answers. GEO builds on SEO; it doesn't replace it.

Is AEO the same as GEO?

Not quite. AEO is about being the direct answer (featured snippets, voice answers). GEO is about being one of the sources AI tools use when they write a longer answer. The tactics overlap a lot.

Do I need a separate GEO strategy?

For most small businesses, no. Strong SEO, answer-first content, reviews and genuine mentions cover most of it. Add simple AI-specific checks like crawler access and monthly prompt testing.

Make your site crawlable by its search crawler, publish clear and helpful content, keep your business details consistent, and build real reviews and mentions on trusted sites. There's no guaranteed method.

Is SEO still worth it in the AI era?

Yes. AI search still depends on finding and trusting websites, and Google's AI features are built on its search index. SEO is the foundation of AI visibility.

Key SEO Terms in This Post

Term

Meaning

SEO

Search Engine Optimization: ranking in search results

AEO

Answer Engine Optimization: being the direct answer

GEO

Generative Engine Optimization: being cited in AI answers

AI Overviews

Google's AI-written summaries at the top of some results

AI Mode

Google's conversational AI search experience

Featured snippet

A highlighted answer box at the top of Google results

Citation

(In AI search) a source linked or named in an AI answer

Entity

A clearly identifiable thing, like your business, a person or a place

AI crawler

A bot that collects pages for an AI company, for training or search

Wrapping Up

SEO, AEO and GEO aren't three competing strategies. They're three layers of the same goal: being the most trusted, clearest answer, wherever people search.

Get the SEO foundation right, write answer-first content, build a genuine reputation across the web, and check that AI tools can actually reach you. Do that, and you're ready for Google, for answer boxes and for AI, whatever acronym comes next.

This wraps up my SEO fundamentals series. Start from the beginning here: [What is SEO and How Does It Work?] or go deeper with [Advanced Technical SEO for the AI Era].

Want to know how visible your business is in AI search? Get in touch.

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