GEO and AI searchGuide 1 of 113 min read

How AI assistants choose which sites to name

How ChatGPT, Perplexity, Gemini, Copilot and Google's AI features find, read and cite sources, and what that means for a SaaS company that wants to be named.

This guide shows you how to explain where an AI answer's sources come from and which of those you can influence.

When a buyer asks an AI assistant “what is the best time tracking tool for a small agency”, the answer names a handful of products and sometimes links to sources. Generative engine optimisation, or GEO, is the work of being one of the names and one of the sources.

The mechanics differ by product, but they share a pattern you can work with.

Short on time? Comppound does this work for SaaS companies. AI-native, and a person reviews every page.

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Two places an answer comes from

An assistant answers from what the model learned in training and, increasingly, from pages it fetches at the moment you ask. The first is slow to change and hard to influence directly. The second, often called retrieval or grounding, uses a search index and your live pages, and you can influence it in the same way you influence search.

What retrieval looks for

When an assistant searches the web to answer, it tends to favour pages that:

  • rank or are indexed for the searches it runs behind the scenes
  • its crawler is allowed to read, without needing to run JavaScript
  • state an answer plainly in a passage it can lift
  • are corroborated by other sources, such as reviews and community threads

Comppound can do this for you

Want to be named in AI answers?

Comppound checks what ChatGPT, Perplexity, Gemini and Google's AI features say about your category, opens your site to their crawlers and builds the pages and mentions they cite. AI-native, with every page reviewed by a person.

  • AI visibility baseline for your buyer questions
  • Crawler access and quotable pages
  • Monthly tracking of where you are named

Why one question becomes many searches

Assistants often break a question into several searches, a step called query fan-out. “Best time tracking for agencies” might become searches for alternatives to a market leader, pricing, integrations and reviews. A site with good pages for each of those has more chances to be picked up.

What you control

You control whether crawlers can read you, how quotable your pages are, how complete your coverage of buyer questions is, and partly how often you are mentioned elsewhere. The rest of this track takes those one at a time.

Worked example · an illustration, not a client result

Tracing one AI answer

Tallyroom asked three assistants the same buyer question and wrote down every source each one named. Most sources were comparison and alternatives pages, plus one community thread. None was Tallyroom's own site, because it had no page of either kind.

Source type namedCould Tallyroom influence it?How
Review-site listPartlyAsk customers for reviews
Competitor's alternatives pageNoPublish a fairer one of its own
Community threadPartlyTake part honestly where it is relevant
Independent blog comparisonPartlyOffer accurate product details to the author

Do it yourself

Ask the assistants yourself

  1. 1Write five questions a buyer would ask before choosing a product like yours.
  2. 2Put each to ChatGPT, Perplexity and Gemini, and note whether Google shows an AI Overview.
  3. 3Record every product named and every source linked.
  4. 4Mark where you are named, where a competitor is named instead and where nobody is.
  5. 5Keep the sheet. It is your baseline for the tracking lesson.

Free tool for this: Free AI visibility report, AI crawler access checker

Common mistakes

Treating AI search as separate from SEO

Retrieval leans on search indexes and crawlable pages. Most GEO work is good SEO done with quoting in mind.

Judging by one answer

Answers vary from run to run and between users. Ask several times and look for patterns.

Chasing a trick

There is no hidden tag that makes an assistant name you. Coverage, clarity and corroboration do.

Rather not do it yourself?

Want to be named in AI answers?

Comppound checks what ChatGPT, Perplexity, Gemini and Google's AI features say about your category, opens your site to their crawlers and builds the pages and mentions they cite. AI-native, with every page reviewed by a person.

  • AI visibility baseline for your buyer questions
  • Crawler access and quotable pages
  • Monthly tracking of where you are named

Questions

They are different names for much the same work: being cited or named in AI-generated answers.

Some AI products sell ads beside answers, but the answer itself is not for sale. Being named comes from the sources it trusts.

Or let Comppound do it.

We find the searches your buyers make, then build, publish and improve the pages that win them. AI-native, and a person reviews every page.