SEO vs GEO vs AEO explained

Plain definitions

The acronyms sound more exotic than the work behind them. Here is what each one actually refers to.

How they compare

Set side by side, the differences are narrower than the marketing around them suggests.

Why SEO is not being replaced

AI-assisted discovery changes how answers are delivered, not what makes a business worth recommending. Generative systems still lean on crawled pages, structured data, business listings and reputation signals — the same material SEO produces.

A business with thin service pages, conflicting listings and no reviews does not become discoverable by adding a GEO line item. It becomes discoverable by fixing the foundation, which then serves all three surfaces at once.

Be sceptical of anyone selling guaranteed ChatGPT rankings or guaranteed AI recommendations. Neither can be bought or promised; the inputs can be influenced, the output cannot be controlled.

Content structures that support each approach

Where the disciplines genuinely diverge is in how content is structured. The same subject matter can be written to serve one surface or all three.

• Lead with a direct answer in the first two sentences, then expand — this serves snippets and AI summarisation alike
• Use question-based headings that match how customers phrase the problem
• Include short definitions ('In simple terms…') that can be quoted without distortion
• Add comparison tables where a decision is involved; they are unusually easy for systems to parse
• Close with an FAQ section covering the objections a buyer actually raises
• Keep factual claims verifiable and attributed, so a system has no reason to discount them

Entity clarity and structured information

An 'entity' here is simply your business as a known thing: its name, location, services, people and relationships. Search and AI systems become more confident about a business when every source agrees on those facts.

That means identical business name, address and phone number across your site and every listing; a services list that matches what you actually sell; schema markup that describes your organisation, services and articles; and an about page that states who runs the business and where it operates.

• One canonical version of your business name — no variations across directories
• Organisation and service schema on the relevant pages
• A clear services taxonomy, one page per service you want to sell
• Location and service-area context stated in plain text, not only in a map embed

Authority and citation signals

Being mentioned in places other than your own website is what turns clarity into confidence. Industry directories, local press, partner sites, supplier listings, review platforms and genuine editorial coverage all reinforce that the business exists and does what it claims.

This is slow work and it does not respond to volume tactics. A small number of relevant, real mentions outperforms a large number of low-quality ones, and low-quality link building can actively damage a site.

What to do first with one budget

Sequence beats breadth. A workable order for most established businesses looks like this.

Frequently asked questions

Is GEO a separate service we need to buy?

For most growing businesses, no. The majority of what improves AI-assisted discovery is the same foundation work that improves search visibility. It is better treated as an emphasis within one visibility programme than a separate retainer.

Can anyone guarantee we appear in ChatGPT or AI overviews?

No. Generative systems produce different answers for different users and change frequently. What can be improved is the consistency, structure and credibility of the information they draw on.

Does AEO reduce our website traffic?

It can. Answers resolved on the results page mean fewer clicks for informational queries. That is why measurement should shift towards impressions, visibility and enquiries rather than sessions alone.

What should we measure for AI discovery?

Ask category questions an ideal customer would ask, in your area, and record whether your business is mentioned. Track it monthly alongside search impressions, map-pack visibility and enquiry volume.