GEO

GEO stands for generative engine optimisation. It is the work of making your business likely to be referenced when a generative system writes an answer, rather than lists results. ChatGPT, Gemini, Perplexity, Copilot and the assistants built into browsers all do the same thing: they read widely, decide what is relevant, and produce prose that names some sources and quietly ignores the rest. GEO is about being in the first group.

In short

• GEO means being cited inside a generated answer, not ranked in a list of links.
• It has nothing to do with geography, despite the word.
• What you say about yourself elsewhere on the internet matters more here than on your own site.
• Almost nothing about it can be measured cleanly yet, which is worth knowing before anybody invoices for it.

The word does not mean geography

In advertising, “geo” has meant location for years. Geo-targeting, geo-fencing, geographic reporting. In the context of search and AI, GEO means generative engine optimisation and carries no locational meaning at all.

Two people can hold an entire conversation about GEO at cross purposes, and in agency proposals they frequently do. The safe habit is to expand the acronym the first time anybody uses it, and to be suspicious of a proposal that never does.

What a generative engine does differently

A search engine finds pages and ranks them. A generative engine reads material and writes something new from it.

The consequences are not small.

• Position barely exists. Some assistants number their sources and some do not, but the real division is between being used and being ignored. Being the sixth best source often means being no source at all.
• The answer varies. Ask the same question twice and the wording, and sometimes the businesses named, will differ.
• It draws on more than your website. Directories, reviews, forums, articles, social posts and anywhere else your name appears with a description attached.
• It can be wrong about you. A system assembling a description from stale and inconsistent sources will produce a confident and incorrect sentence, and there is no form to submit a correction.
• Nobody sees a page of alternatives. A results page shows ten options. A written answer names a handful.

Being cited is the goal

The unit of success is a mention, and mentions are earned differently to rankings.

• Say the same thing everywhere. The name, what you do, where you work, the services you offer. Systems that see one consistent story repeat it. A contradictory story tends to be dropped rather than resolved.
• Be described in the third person somewhere other than your own site. Directories, associations, partner pages, local press. This is off-page SEO doing a second job.
• Publish things that can be quoted. Explanations with specifics in them. Vague marketing prose gives a summariser nothing to carry across.
• Be verifiable. A business with a filled-in Google Business Profile, real reviews and a site that has been around a while looks like a safer thing to name than one with a single page and no history.
• Cover the question fully in one place. Answers are assembled from sources that already contain the whole answer, not stitched from six half-pages on your own site.

What these systems appear to favour

Nobody outside the companies knows the mechanism, and any confident list is partly inference. That said, the observable pattern is consistent enough to work from.

• Clear, direct writing with the answer stated rather than approached.
• Structure, which is why AEO practices help here too.
• Specificity. Conditions, exceptions, numbers you can stand behind.
• Corroboration. Something several independent sources agree on is safer to repeat than something only one site says.
• Freshness where it matters, particularly for anything that changes.
• Sources that already carry weight, which is the same trust question SEO has always asked.

Crawler access, and a common misunderstanding

Assistants read the web with their own crawlers, each under its own name, and a robots.txt written years ago will not mention any of them. If you want to be cited by a particular assistant, its crawler has to be allowed. Excluding them all is a legitimate decision, but it should be a decision rather than an inheritance.

The misunderstanding worth clearing up concerns Google. Google’s AI Overviews and AI Mode are served from the ordinary Googlebot crawl, not from a separate AI crawler. The Google-Extended token controls whether your content is used to train and ground Gemini, and nothing else. Blocking it does not remove you from AI Overviews and does not affect your search rankings, and the only way out of Google’s AI answers is the snippet controls or leaving Google Search altogether. Anybody who tells you that blocking AI crawlers keeps you out of Google’s AI answers has it wrong.

Two more technical points belong with it. Text that only appears after a script runs is read less reliably than text that is simply present in the HTML. And pages that resolve cleanly, without duplicates under three addresses, are easier for any crawler to make sense of, which is ordinary technical SEO.

Where GEO stops and the other acronyms start

GEO concerns the systems that write an answer and cite sources, which in practice means the chat assistants. AEO is the wider goal of being the answer on any surface that gives one, including plain featured snippets that involve no generation at all, and that page sets out the three terms side by side. AIO usually names Google’s AI Overviews specifically.

The work behind all three is close to identical. Treat the labels as vocabulary, not as three separate projects with three separate budgets.

What can be measured, and what cannot

This is the weakest part of the field.

• Impressions are mostly invisible. No assistant publishes a count of how often you were considered and not named, and the reporting that does exist is partial and differs from one platform to the next.
• Referral traffic is incomplete. Some assistants pass a recognisable source and some do not, so the visits arrive as direct traffic and get attributed to nothing.
• Answers are unstable, so a check on Tuesday and a check on Friday are not the same measurement.
• Branded search is the useful proxy. People who hear a name from an assistant often search for it afterwards, and that rise is visible.
• Manual checks are still the best instrument. Ask the questions, record the answers, watch the trend over months.

Any tool claiming precise GEO reporting is estimating. The estimate may be directionally useful. It is not a measurement, and it should not be presented as one.

What to actually do first

For a business without a research budget, the sensible version of GEO is short.

• Fix the description of your business everywhere it appears, so the sources agree.
• Make each service page answer its question completely, which serves search, answer engines and readers at once.
• Get real reviews and keep them coming, since reviews and profiles are the sources most obviously about you and the easiest for anything to find.
• Decide deliberately about AI crawlers rather than inheriting a decision.
• Check the assistants monthly and correct the sources behind anything they get wrong about you.