# AI Visibility Census

> Who AI names. And why. An independent, recurring measure of which firms and companies AI answers name, and the sources cited alongside them.

The AI Visibility Census is a recurring, published measure of which firms and companies AI answer engines (ChatGPT, Perplexity, Microsoft Copilot, Google Gemini, Google AI Overviews and Claude) name in response to buyer questions, and which sources those answers cite. Every page on this site is available as Markdown by appending .md to its URL.

## Pages

- [AI Visibility Census](https://aivisibilitycensus.com/index.md): Who AI names, and why. A recurring measure of which firms and companies AI answer engines name for buyer questions, and the sources they cite.
- [Data license](https://aivisibilitycensus.com/data-license.md): Census data is free to reuse under CC BY 4.0. What the license covers, what it does not, and how to credit the AI Visibility Census.
- [Editorial standards](https://aivisibilitycensus.com/editorial-standards.md): How the AI Visibility Census decides what to publish, stays independent, uses AI tools, cites sources and handles changes.
- [Experiments](https://aivisibilitycensus.com/experiments.md): Every test we run on this site to see how search engines and AI tools find, read and cite new pages: the setup, the prediction and the results, including the ones that show nothing.
- [Methodology changelog](https://aivisibilitycensus.com/changelog.md): Every change to the AI Visibility Census methodology, with the date and what changed.
- [Editions](https://aivisibilitycensus.com/editions.md): Every edition of the AI Visibility Census, by market. Edition 1 covers professional and specialist services firms in Ireland.
- [Methodology](https://aivisibilitycensus.com/methodology.md): How the AI Visibility Census measures mentions and citations across six AI engines: questions, engines, collection, limits and corrections.
- [About](https://aivisibilitycensus.com/about.md): An independent, recurring publication that records which firms and companies AI answer engines name, and which sources they cite.
- [Blog](https://aivisibilitycensus.com/blog.md): Analysis and notes on how AI answer engines choose which firms to name and which sources to cite.
- [Contact](https://aivisibilitycensus.com/contact.md): How to reach the AI Visibility Census for questions, corrections, data and press.
- [Corrections](https://aivisibilitycensus.com/corrections.md): How to report an error in the AI Visibility Census, and how we correct it.
- [Privacy](https://aivisibilitycensus.com/privacy.md): What data this site collects, why, how long it is kept, and your rights.

## Articles

- [Lab note 001: we launched a brand-new domain today. Here’s everything we set up, and what we predict.](https://aivisibilitycensus.com/lab-note-001-new-domain-launch.md): A brand-new domain, registered and launched on 29 October 2026. The full setup, the first crawler visits and our predictions, written down before the results.
- [Keyword research for AI search: how to find the questions buyers ask](https://aivisibilitycensus.com/keyword-research-for-ai-search.md): Keyword research for AI search finds the full questions buyers ask ChatGPT, Perplexity and Google AI Mode. Five steps, with real monitoring data.

## Optional

- [Full text of every page](https://aivisibilitycensus.com/llms-full.txt): all pages and articles in one Markdown file
- [Sitemap](https://aivisibilitycensus.com/wp-sitemap.xml)