AEO vs GEO vs SEO: Which is Best?

SEO, AEO and GEO are often presented as competing strategies, but they actually describe three overlapping layers of the same discipline: getting found by the systems your customers use to research and buy. The confusion usually comes from marketing teams treating each acronym as a separate budget line rather than three outcomes of one well-built content and technical foundation.

This guide explains each one in plain terms, compares them directly, and sets out how they fit together in a single strategy — the approach behind our SEO services and GEO and AEO services.

Key takeaways

SEO drives rankings and clicks in traditional search results; AEO and GEO drive visibility inside generated answers.
AEO is question-led and page-level; GEO is authority-led and brand-level, spanning on-site and off-site signals.
All three share the same technical foundation: crawlability, structured data and clear, well-organised content.
Most businesses should not choose between them — they should run a combined strategy and measure each separately.

SEO, AEO and GEO at a glance

Before going into detail, here is how the three disciplines compare on channel, primary objective and the outcome each is built to produce.

SEO, AEO and GEO compared at a glance
Discipline	Channel	Primary objective	Typical outcome
SEO	Google, Bing organic results, maps	Rank highly for target search terms	Clicks and traffic to your site
AEO	Featured snippets, answer boxes, voice, AI Overviews	Answer a specific question extractably	Direct answer placement, often zero-click
GEO	ChatGPT, Gemini, Perplexity, Copilot, AI Mode	Be retrieved and cited as a trusted source	Brand mentions, citations, AI referral traffic

What is SEO?

Search engine optimisation is the practice of making a website easy for search engines to crawl, understand and rank for relevant queries. It covers technical health, keyword targeting, content quality, on-page structure and off-site authority signals such as links and reviews. It remains the foundation every other discipline in this article sits on top of.

Where SEO visibility appears

Classic SEO visibility shows up in the organic results list, the local map pack, image and video packs, and site links beneath a ranking result. It is measured by position, impressions, click-through rate and organic sessions.

Strengths and limitations

Strength: mature measurement, well-understood levers, compounding long-term value.
Strength: works alongside performance SEO and paid channels.
Limitation: increasingly shares real estate with AI Overviews and answer boxes.
Limitation: rankings alone say nothing about how you are described in a generated answer.

What is AEO?

Answer engine optimisation is the practice of structuring content so a specific question is answered directly, concisely and in a form that machines can extract cleanly. Instead of writing to rank for a keyword, you write to satisfy a question — with the answer placed immediately under a matching heading rather than buried in preamble.

Featured snippets, voice search and direct answers

AEO work targets featured snippets, Google's answer boxes, voice assistant responses and AI Overviews. Each of these surfaces pulls a short, self-contained passage from a page, so the answer needs to stand alone without depending on surrounding sentences.

How AEO differs from conventional SEO

Conventional SEO optimises a whole page for a keyword theme; AEO optimises individual sections for individual questions. It relies less on link authority and more on formatting discipline — headings, concise answers, lists and tables. See our AEO agency services for how we apply this in practice.

What is GEO?

Generative engine optimisation is the practice of making your brand, expertise and content easy for generative AI systems to retrieve, understand and reference when they compose an answer. Rather than a ranking position, success looks like being named, described accurately and cited as a source within a generated response.

Visibility within ChatGPT, Gemini, Perplexity and AI search

GEO covers the assistants and AI-native search tools your buyers now use for research: ChatGPT, Gemini, Perplexity, Copilot and Google's AI Mode. These systems synthesise an answer from multiple sources and decide, largely on authority and clarity, which sources to trust and name.

Why brands are investing in GEO

When an assistant recommends a shortlist of suppliers, businesses left out are effectively invisible for that enquiry. Investing early in GEO services secures a seat on that shortlist while most competitors are still writing purely for traditional rankings. See what is AI search? for more context.

AEO vs GEO vs SEO: the main differences

The three disciplines diverge most clearly on what "success" looks like and how it is measured — search results versus generated answers, rankings versus citations, and clicks versus visibility without a click.

Main differences between SEO, AEO and GEO
Factor	SEO	AEO	GEO
Output	Search results list	Generated or extracted answer	Generated answer with citation
Success metric	Ranking position	Answer/snippet inclusion	Brand mention and citation
Unit of targeting	Keywords	Questions and entities	Entities, context and authority
User interaction	Click to your site	Often zero-click	Often zero-click, with occasional referral

Search results vs generated answers: SEO competes for a place on a list; AEO and GEO compete to be the substance of the answer itself.
Rankings vs citations and brand mentions: a ranking position is measurable and stable; a citation depends on how an AI model chooses to phrase and attribute its answer.
Keywords vs entities, context and authority: AI systems reason about who you are and what you are known for, not just which words appear on the page.
Clicks vs visibility without a click: AEO and GEO can build brand awareness and trust even when no click occurs, which changes how value should be measured.

Do SEO, AEO and GEO use different strategies?

The strategies overlap far more than they diverge, but the emphasis shifts across five areas.

Technical optimisation: all three need a crawlable, fast, renderable site — GEO adds a requirement that AI crawlers specifically can access and parse content.
Content structure: SEO favours comprehensive topic pages, AEO favours question-and-answer formatting, GEO favours original data and clearly stated expertise.
Brand authority: SEO leans on backlinks, AEO leans on clarity, GEO leans heavily on consistent, verifiable authority signals across the web.
Digital PR and third-party mentions: increasingly important for GEO, since generative models weigh how often and how consistently a brand is mentioned elsewhere.
Structured data: schema markup supports all three, but is particularly valuable for AEO's answer extraction and GEO's entity recognition.

Which approach produces the most traffic?

SEO still produces the most measurable click-through traffic for most businesses, because organic results remain the largest single surface. AEO and GEO typically produce less direct traffic but higher-intent visits and brand awareness that shows up later as direct or branded search. Treating AEO and GEO purely as traffic channels understates their value — much of their return is influence rather than clicks.

Which is best for local businesses?

For local businesses, SEO combined with strong local SEO services — Google Business Profile, reviews and location pages — still delivers the bulk of enquiries. GEO is becoming increasingly relevant as people ask assistants for recommendations "near me" or by category, so local businesses should not ignore it, but it currently supplements rather than replaces local SEO fundamentals.

Should your business invest in all three?

Yes, in proportion to your market. Ignoring SEO in favour of GEO risks losing the largest existing traffic source; ignoring AEO and GEO risks losing visibility on the surfaces where your competitors will increasingly be named instead of you. As explained in why good GEO and AEO is just good SEO, the incremental cost of adding AEO and GEO discipline to a solid SEO programme is usually small relative to the risk of being left out of generated answers entirely.

A combined SEO, AEO and GEO strategy

Build technically sound, fast, crawlable pages that both search engines and AI crawlers can access.
Structure every page around clear headings with a direct answer placed at the top.
Target real questions and keywords together, rather than choosing one over the other.
Keep entity information — name, services, locations, credentials — consistent everywhere it appears online.
Earn genuine third-party mentions through digital PR, partnerships and reviews.
Apply accurate structured data across the site.
Publish original insight worth citing, following how to structure content for AI search and LLMs.

How to measure performance across each channel

SEO: rankings, organic sessions, click-through rate and conversions from organic traffic.
AEO: featured snippet and answer box coverage, AI Overview appearances, question-level visibility.
GEO: tracked prompts across assistants to check whether you are named and cited, plus segmented AI referral traffic and resulting enquiries.
Across all three: branded search volume and direct traffic, which often rise as a lagging indicator of AI and answer visibility.

Final verdict: SEO, AEO or GEO?

There is no single winner because they answer different questions. SEO decides whether you appear on the page; AEO decides whether you supply the answer; GEO decides whether you are the trusted source an AI system names. The businesses that come out ahead over the next few years will be the ones treating all three as one strategy, built on the same technical and content foundation, rather than picking a favourite acronym.

Frequently asked questions

Is GEO replacing SEO?+

No. GEO depends on the same crawlability, authority and content quality that SEO builds. Generative systems still rely on well-optimised sites as their source material, so GEO is an extension of SEO, not a replacement for it.

Is AEO the same as voice search optimisation?+

Voice search optimisation is one application of AEO. AEO also covers featured snippets, answer boxes and AI Overviews, so it is broader than voice alone, though the techniques overlap heavily.

Can a small business rank in AI-generated answers?+

Yes. Generative systems reward clarity, consistency and genuine expertise over sheer size, so a well-structured small business site with strong entity signals can be cited alongside or instead of larger competitors.

How long does GEO take to work?+

Early citation gains can appear within weeks of structural and entity fixes, but building the sustained authority that generative systems trust typically takes a similar timeframe to organic SEO — several months of consistent work.

Does schema markup help with AEO?+

Yes. Accurate FAQPage, HowTo and Organization schema helps answer engines extract and attribute content correctly, though schema alone will not compensate for weak or poorly structured answers.

Conclusion

SEO, AEO and GEO are not rival strategies to choose between — they are three visibility layers built on the same foundation, and neglecting any one of them leaves a gap competitors can fill. The right mix depends on your market, your customers' research habits and how they currently search.

If you want a clear picture of where you stand today, request an SEO, AEO and GEO visibility review and we will show you exactly where the opportunities sit across all three.