GEO Audit: See Exactly What AI Engines Are Served From Your Site

Most sites have never been looked at this way. The results tend to surprise people.

What is a GEO audit?

A GEO audit (generative engine optimisation audit) is a structured review of how your website performs in AI-driven search: whether AI crawlers can access your pages, whether the content they receive is actually readable, and whether it is structured in a way answer engines can extract and cite. It is the diagnostic layer of GEO, the practice of making a brand visible in AI-generated answers rather than only in traditional search results.

The distinction that matters: most AI visibility tools measure whether you appear in AI answers. A GEO audit measures the mechanism underneath, what each AI agent is physically served when it reads your site. A brand can look fine on a visibility tracker while serving half the agents an empty page, because trackers watch the scoreboard, not the pitch.

Run a free GEO audit in 30 seconds

The Agent Parity Check is the free layer of our audit, and it needs nothing but a URL. It fetches your page as seven real AI agents, GPTBot, ChatGPT-User, OAI-SearchBot, PerplexityBot, ClaudeBot, CCBot and a browser baseline, and shows you the status and size each one is served, side by side.

Be straight about what the free check does and does not cover: it reads behaviour at user-agent level, from our infrastructure. It will catch a firewall locking agents out, a CDN serving different responses to different bots, and pages whose content only exists after JavaScript runs. What it cannot see is the deeper layer: how your pages hold up under rendering, whether your content survives extraction, and how the full set of agent families treats your whole site rather than one page. That is the paid audit's job.

What the full GEO audit covers

The full Wellknown Audit crawls your site as each real AI agent across every family, indexing crawlers and live-fetch agents, validates against genuine bot infrastructure, and returns three things:

The audit costs £3,500, needs only your URL, no access, no installs, no data handover, and takes about a week. Every audit is run and reviewed personally by a specialist, not generated by a form. See the full audit.

GEO audit checklist

If you want to check the fundamentals yourself first, this is the checklist we would start with. Each item takes minutes and each one fails on real sites more often than you would expect.

1. Read your robots.txt. Look for rules naming GPTBot, ClaudeBot, CCBot or Google-Extended that nobody remembers writing. CDN providers now add some of these by default; Cloudflare has blocked AI training crawlers by default for new domains since July 2025.
2. Check your CDN's bot settings. Bot-protection modes that challenge "known bots" challenge declared AI agents too, and the block never shows up in your analytics.
3. Fetch your pages as the agents. Run your homepage and two commercial pages through the parity check. Money pages fail more often than homepages.
4. Measure what survives without JavaScript. View your page source and look for your actual content. If the words only exist after scripts run, AI agents may be reading a frame around nothing.
5. Know which crawler does what. OpenAI alone runs three crawlers with three different jobs, and a rule written for one does not touch the others.
6. Check your llms.txt and sitemap. Both help engines understand what matters on your site. Their absence is not fatal, but their presence is cheap.
7. Ask the assistants about your brand. ChatGPT and Perplexity, with search on. What they say, and what they cite, is the output your customers see.
8. Check your key facts are extractable. Prices, credentials, locations and claims should exist as clear standalone sentences, not only inside images, tabs or scripts.

If every item passes, you are in better shape than most of the web. If any fails, you have found something your analytics would never have shown you.

GEO audit vs SEO audit

An SEO audit asks whether Google's ranking systems can crawl, index and rank you. A GEO audit asks whether generative engines can read, understand and cite you. They overlap at the technical foundations, and then they diverge: rankings are a list you can climb, while an AI answer is a synthesis you are either part of or absent from. A site can hold strong rankings and still be invisible at answer time, because the agents that fetch pages live behave differently from the crawler that ranked you.

Frequently asked questions

What is a GEO audit?

A GEO audit is a review of how visible and readable your website is to generative AI engines: whether AI crawlers can access it, what content they are actually served, and whether that content is structured for answer engines to extract and cite.

Will GEO replace SEO?

No. GEO extends SEO rather than replacing it. Traditional search still drives significant traffic, and AI engines partly build on the same foundations. The practical shift is that ranking and being cited have come apart, so the two now need to be worked on deliberately, together.

What is the difference between a GEO audit and an SEO audit?

An SEO audit measures your site against Google's ranking systems. A GEO audit measures it against AI agents and answer engines: access, served content, rendering survival and citability. The foundations overlap; the tests and the failures differ.

Which is better, SEO or GEO?

Neither, because they answer different questions. SEO wins you positions in a results list; GEO wins you presence in the answer itself. Most brands need both, and the honest starting point is finding out where you currently stand on each.