An AI SEO audit measures whether AI engines — ChatGPT, Perplexity — cite your website when buyers ask about your category, how you compare to competitors, and whether you can realistically win more of those citations. "AI SEO" is just the popular name for it; what's actually being audited is your share of AI answer citations. A real audit hands you a number, a benchmark, and a play. A fake one hands you a vanity score and a promise nobody can keep.
First, the terminology — because it's a mess
"AI SEO," "GEO," "AEO," "AI visibility," "LLM SEO" — these are mostly the same job wearing different labels: getting your site surfaced by AI when someone asks a buying question. "AI SEO" is the phrase most people actually type, so it's the one that sticks, but don't let a vendor use the fog of acronyms to sell you something vague. Whatever they call it, the audit should answer one concrete question: when buyers ask AI about your category, are you cited — and can you be cited more?
What a real AI SEO audit checks
Three measurements, each concrete and countable:
Your answer-slot share. Across the questions your buyers actually ask AI, what fraction of the cited sources are your domain. This is the headline number — market share, but for AI answers.
The competing-domain count. How many distinct sites fight for those citations. A fragmented field is winnable; one locked by a few incumbents or Reddit usually isn't — and this is knowable before you spend a dollar on content.
Who holds every slot you're missing. Small blogs can be out-published; Reddit threads and review giants need a different play entirely. The holder decides the strategy.
Anything less than these three — a single "AI visibility score" with no competitor context, no per-question detail, no verdict on winnability — is a dashboard, not an audit.
Red flags: how to spot a weak or fake AI SEO audit
The category is new and crowded with opportunists. Walk away if you see any of these:
It guarantees citations. Nobody controls which sources an AI engine picks. Engines even disagree with themselves — roughly a third of the time on the same page. A guaranteed placement is a guaranteed lie.
It's a single snapshot. We ran the identical query on the same model twice, back to back, and got a ~33% different set of sources — our own domain appeared in one run and vanished in the next. An audit that measures once is reporting a coin flip. Real ones run each question multiple times and pool the results.
No competitor benchmark. A share number with nothing to compare it to is trivia. "You're at 4%" means nothing until you know the leader holds 5% (winnable) or 40% (not).
No winnability verdict. If it won't tell you honestly that your niche might be un-winnable by content, it's selling you content regardless of whether it can work.
One vanity score, no map. A single grade with no per-question breakdown gives you nothing to act on.
"AI SEO" as pure buzzword. If they can't explain what they measure and on which engines, they're not measuring.
Can you run one yourself?
Partly — and it's worth doing before you pay anyone. A basic DIY pass:
Write 15–20 real buyer questions (how people ask AI, not head terms).
Ask each to ChatGPT and Perplexity, and note whether your domain is among the cited sources.
Run each question three times — the answers vary, so a single check misleads.
Log who else gets cited, and count the distinct domains competing.
That gives you a rough read on whether you're registering at all. What's hard to DIY is choosing the questions well, filtering the engine-to-engine noise, benchmarking competitors properly, and knowing whether your share means "early and climbing" or "stuck" — which is exactly the interpretation a paid audit exists to provide. Our full guide to getting cited covers the tactics.
What you should walk away with
A real AI SEO audit leaves you with four things you didn't have before: your share, your competitors' shares, a per-question map of what's open versus locked, and a recommended play matched to who holds your slots — content, community presence, or listings. If it's honest, it also tells you when the answer is "don't spend here," which is worth the fee on its own.
Frequently asked questions
Is an AI SEO audit the same as a GEO or AI visibility audit?
A focused one on the core engines runs a few hundred dollars; broader multi-engine, multi-market audits run into the low thousands. See what it costs for the breakdown. Beware anything priced like a monthly retainer before you've seen a single number.
Do I still need a normal SEO audit?
They measure different surfaces and complement each other — traditional SEO tracks Google rankings; an AI SEO audit tracks citations inside AI answers. Strong classic SEO often helps AI visibility, but the two diverge often enough that measuring the AI layer separately is worth it.
How often should it be re-run?
Because AI citations drift and any single reading is noisy, treat the audit as the deep first read and re-measure monthly to get a trend. The trend, not the snapshot, tells you whether a strategy is working.
Get an AI SEO audit that gives you a number, a benchmark, and a play.
Your answer-slot share across ChatGPT and Perplexity, your competitors', the per-question map, and an honest verdict on whether you can win. $300, delivered in 48 hours — every number a real, repeated measurement.