ChatGPT · Perplexity · Google AI · Gemini

AI Visibility Lab studies how businesses show up in AI search.

We’re an open research property testing how traditional SEO and AI-search visibility (GEO) relate — and publishing plain-English guides, a worked audit, and the results of a live two-site experiment so small businesses can actually act on it.

AI answer · “how do AI engines pick sources?”

They retrieve crawlable, well-structured pages, then cite the ones that answer the question directly1 — which is why strong SEO foundations still decide AI visibility2.

aivisibilitylab.co › how-ai-recommends-local-businesses
How AI search engines choose which sources to cite
A field guide to retrieval, structure and the signals AI answers reuse from search…
What the Lab is

Most “rank in ChatGPT” advice skips the part that makes it work.

Advice about AI visibility usually treats GEO as a brand-new discipline. In practice, the pages AI engines cite are overwhelmingly the ones that were already discoverable, crawlable and useful. Skip the foundations and there’s nothing for an answer engine to find. The Lab exists to test that relationship and write down what actually moves the needle — for owners, not agencies.

  • 4

    AI answer engines we track: ChatGPT, Perplexity, Google AI and Gemini.

  • 2

    live sites we run to test the SEO-to-AI relationship in public.

  • 0

    products sold — listings and audits are signals we explain, not services we pitch.

SEO → GEO

GEO is an extension of SEO, not a replacement

The path from a query to an AI citation runs straight through traditional search. Each stage depends on the one before it — the thesis the Lab is built to test.

Foundation
Crawlable & indexed

The page can be found and read.

Structure
Clear & answerable

Headings, schema, direct answers.

Outcome
Cited by AI

Retrieved and quoted in answers.

We name this progression the Crawl-Read-Cite Ladder, score where a site sits on it with the Citevane Index, unpack the full chain in the SEO vs GEO experiment and show how engines actually choose local businesses in how AI recommends local businesses.

The open experiment

We’re testing the thesis in public, on two live sites.

This site is the strong implementation. A second, deliberately more generic site targets the same long-tail queries. We track how each performs across traditional and AI search — and publish what we find. There are no results yet: we’re sharing the method now and the findings as the data arrives.

What we’re measuring

  • Indexation & organic rankings on shared queries
  • Citations across AI answer engines
  • Whether stronger SEO tracks stronger AI visibility
Questions

Frequently asked questions

What is AI Visibility Lab?
AI Visibility Lab is an independent research property studying how businesses show up — or don't — when people ask ChatGPT, Perplexity, Google AI Overviews and Gemini for a recommendation. We publish plain-English guides, a worked audit example, and the results of a live experiment testing how traditional SEO and AI-search visibility relate. We explain the signals AI engines read; we don't sell listing management or local-SEO services.
Is AI search visibility different from SEO?
It overlaps heavily. AI answer engines don't hold a private opinion of who's best — they synthesise answers from a retrieval layer that first has to find, read and trust a page, and that layer is built largely from the same signals SEO measures. Our working hypothesis is that AI visibility sits on top of SEO rather than replacing it. We're running a live experiment to test how strong that dependency really is.
Is the Lab's advice based on its own testing?
Some of it describes how AI engines reportedly behave, hedged accordingly because the behaviour changes often. The rest is the design of an experiment we're running in public: two live sites in the same niche, one built strong and one deliberately generic, measured across traditional and AI search. We publish the method now and the findings as the data arrives — we don't claim results we don't yet have.
Your next step

See how discoverable your site is to AI search

Walk through the Lab’s method for checking crawlability, structure and citation-readiness — the same way we test the sites in the experiment. In plain English, no account required.

Prefer a worked example first? See an AI visibility audit, end to end.