What Is Generative Engine Optimisation?
Generative engine optimisation (GEO) is the practice of structuring your content, technical setup and online entity so that AI systems (ChatGPT, Gemini, Perplexity, Copilot and Google's AI Overviews) can find your business, understand it, and name it inside a generated answer. It targets the citation, not a position in a list of links.
That distinction matters more than it sounds. A search result is a door you can walk through. An AI answer is a recommendation someone else already made on your behalf. If your business isn't in it, the buyer never learns you exist. No impression, no click, no second chance.
And this is no longer a fringe concern. Telsyte's Australian Artificial Intelligence Study 2026 found that 12% of Australians now name AI tools as their primary way of finding information online, up from 5% the year before. That's roughly one in eight buyers who may never see your Google ranking at all.
How a Generative Engine Actually Builds an Answer
Most explanations of GEO skip the mechanism, which is a shame, because once you understand it the tactics stop feeling arbitrary.
When someone asks ChatGPT for a conveyancer in Brunswick, three things happen in sequence.
Retrieval. The system searches an index for candidate sources. Which index depends on the platform. ChatGPT leans heavily on Bing, Gemini uses Google's index, Perplexity crawls its own. This is the first place most Australian businesses fall out of contention, and usually without knowing it.
Grounding. The model reads those sources and assembles an answer from passages it can actually extract. Not whole pages. Passages. A 2,000-word article with the answer buried in paragraph nine contributes nothing, because nothing short and self-contained was available to lift.
Citation selection. The system decides which sources to name. It favours the ones it can corroborate: a business described consistently across its own site, a Google Business Profile, directories, review platforms and third-party mentions. Consistency reads as confidence.
Miss any one of the three and you're absent. Most businesses miss all three simultaneously.
The Four Layers of GEO Work
Layer 1: crawler access
GPTBot, ClaudeBot, PerplexityBot, Google-Extended and Applebot-Extended each need explicit permission in your robots.txt. Plenty of Australian sites block them without realising, usually through a Cloudflare WAF rule written to stop scrapers that catches AI crawlers in the same net.
Check yours at yourdomain.com/robots.txt right now. It takes thirty seconds. If you can't see GPTBot allowed, nothing else on this list will help you.
Layer 2: entity signals
AI platforms build a picture of your business from everywhere it appears, not just your website. Same business name, same address, same phone number, everywhere. A sameAs field in your Organization schema pointing at your verified profiles. Named people with real credentials rather than a faceless "our team". Mentions on sites you don't own.
That last one is the hard part, and it's the one most agencies quietly skip because it can't be done from inside your CMS.
Layer 3: extractable structure
Put a direct 40–60 word answer in the first paragraph under each heading. Use FAQ sections with FAQPage schema. Write in plain declarative sentences instead of hedged ones. Our complete guide to Answer Engine Optimisation covers the formatting rules in detail.
One finding worth knowing here: a study of real ChatGPT sessions by Sagapixel, reported in Search Engine Land, found 75% of local-service sessions used short keyword-style searches rather than conversational prompts. 45% were a single prompt with no follow-up. People type "conveyancer brunswick" into ChatGPT, same as they always did into Google. Write for that, not for the imagined user asking a beautifully phrased question.
Layer 4: multi-engine indexing
Submit your sitemap to Bing Webmaster Tools, not just Google Search Console. For ChatGPT, Bing is the one that counts. Add an llms.txt file at your domain root, a plain summary of what your business does and which pages matter. It's a small file and the engines that support it appreciate the clarity.
What GEO Is Not
Worth saying plainly, because the market is full of confident nonsense.
GEO is not a plugin. There's no module that switches it on.
GEO is not schema markup by itself. Schema helps a machine parse what's already there; it can't manufacture credibility that doesn't exist. We audited a site recently whose structured data advertised eight service pages to Google and to AI crawlers. Every one of those URLs returned a 404. The markup was flawless. It was describing pages that didn't exist.
GEO is not paid placement. You can't buy your way into an organic AI recommendation, and per Telsyte, 52% of Australians already believe sponsored AI answers are less trustworthy than organic ones. The paid route into AI answers is the one your buyers have pre-emptively discounted.
The Mistake Almost Everyone Makes
Here's the part we'd rather say early than let a client discover three months in.
Most businesses asking about GEO aren't ready for GEO. They have a five-page website, four Google reviews, no mentions anywhere they don't control, and a services page that reads like it was written by a committee. Then they ask why ChatGPT doesn't recommend them.
ChatGPT doesn't recommend them because there's nothing to recommend from. AI systems synthesise from what exists. If your business barely exists online, no amount of schema will conjure a recommendation.
We see this constantly. A business books an AI visibility call, and twenty minutes in it's clear the honest advice is: fix your Google Business Profile, get to twenty reviews, publish something worth citing, get listed in three Australian directories. Then talk about GEO. Not because GEO doesn't work. Because it compounds on a foundation, and they haven't got one yet.
Nobody sells a second engagement by saying that. We say it anyway, because the alternative is taking money for work that can't land.
How to Tell Whether It's Working
GEO doesn't report itself. There's no Search Console for ChatGPT, so measurement is manual, and anyone claiming a precise "AI ranking" number is inventing it.
What we run for every client, and what you can run yourself this afternoon:
Write down 15 to 20 prompts a real buyer would type: your service plus your suburb, "best [service] in [city]", the specific problem you solve, your brand name on its own. Run each one through ChatGPT, Gemini and Perplexity. Record what comes back: who gets named, in what order, which sources get cited. Date it. Repeat monthly.
After two months you have a trend line. After four you can tell whether the work is moving anything. It's unglamorous and it's the only honest measurement method available right now.
Timelines, so you can calibrate: technical fixes show up in Perplexity and Google AI Mode within roughly four to eight weeks. ChatGPT takes three to six months, because OpenAI's underlying data updates on a slower cycle. Entity building through earned mentions takes longer still.
A Worked Example: Our Own Site
Fair's fair. If we're going to write about this, we should show our own numbers.
Inflo Media's robots.txt explicitly allows every major AI crawler by name. We publish an llms.txt. Our homepage carries a full Organization schema graph with sameAs links and a service catalogue. Search "ai marketing agency melbourne" and we currently sit at position eleven — first result on page two — with a blog post, not a service page.
We are not, at the time of writing, cited in the AI Overview that sits above those results. AndMine, Evolut, Absolutely AI and Clearwater are. We know exactly why: they have more third-party mentions than we do. We have five Google reviews. Layer 2 is our weak layer, and no amount of clean markup papers over it.
That's what a real GEO position looks like mid-build. Anyone showing you only the wins is showing you a case study, not a method.
Where to Start
If you read one thing and act on it, make it this: open your robots.txt, confirm GPTBot is allowed, then run the 15-prompt audit and write down what you find. Most businesses have never looked, and about a third discover something genuinely broken within the first ten minutes.
If you'd rather have someone else run it, that's what our AI marketing agency services do, and the audit itself is free, because the results tend to speak for themselves. For how GEO sits alongside traditional search, read GEO vs SEO: what is the difference?
Frequently Asked Questions
What is generative engine optimisation?
Generative engine optimisation is the practice of structuring your content, technical setup and online entity so AI systems can find, understand and cite your business inside generated answers. It covers crawler access, entity consistency, extractable content structure and indexing across multiple search platforms — not just Google.
How does generative engine optimisation work?
It works in three stages. An AI system retrieves candidate sources from an index, reads passages it can extract cleanly, then selects which sources to name based on how consistently it can corroborate them. GEO work targets all three: making sure crawlers can reach you, that your content is extractable at passage level, and that your business details are consistent everywhere they appear.
Is GEO the same as SEO?
No. They share a technical foundation, since a site Google can't crawl usually can't be cited by ChatGPT either, but they measure different outcomes. SEO is measured in rankings and organic traffic. GEO is measured in citation frequency inside AI answers. Most good SEO work contributes to GEO; the reverse is only partly true.
Is GEO the same as AEO?
They overlap heavily. Answer engine optimisation focuses on structuring content so it can be extracted as a direct answer. GEO includes that, and adds the entity-building and multi-engine indexing work needed for an AI system to trust your business enough to name it. In practice most agencies use the terms loosely.
What does a generative engine optimisation agency actually do?
Audit AI crawler access and fix what's blocked, build and align entity signals across your site and third-party profiles, restructure content for passage-level extraction, add the relevant schema, submit to indexes beyond Google, and run recurring prompt audits to measure citation frequency. Ask any agency to describe their measurement method — the answer tells you quickly whether they do the work.
Which platforms does GEO apply to?
The ones with meaningful Australian usage. Per Telsyte's 2026 study: ChatGPT (13.8 million Australian users), Google Gemini (9.1 million), Meta AI (5.6 million), Microsoft Copilot (5.4 million) and Claude (2.9 million), plus Google's AI Overviews and Perplexity. Each draws on a different index, so the work isn't identical across them.
Does GEO require different content from SEO?
The subject matter is the same; the structure isn't. GEO-ready content places a short, self-contained answer directly under each heading, uses FAQ sections with schema, cites its sources, and avoids hedged language. A page can rank well on Google and still be useless to an AI system if the answer is buried.
How is GEO measured?
Manually, by prompt audit. Run a fixed set of 15 to 20 buyer prompts across ChatGPT, Gemini and Perplexity, record which businesses get named and which sources get cited, and repeat monthly. There's no equivalent of Search Console for AI platforms yet, so anyone quoting you a precise AI ranking figure is making it up.
How long does generative engine optimisation take to show results?
Technical fixes (crawler access, schema, llms.txt) typically show in Perplexity and Google AI Mode within four to eight weeks. ChatGPT takes three to six months because its underlying data refreshes more slowly. Entity building through earned mentions and reviews runs three to nine months before it moves anything measurably.
Is GEO worth it for a small business?
Often more than for a large one, because AI citation competition in local Australian categories is still thin compared with Google page one. But only if the foundations are there. If your site is thin, your Google Business Profile is half-finished and nobody else on the internet mentions you, fix that first. GEO compounds on a foundation; it doesn't substitute for one.