Short answer

ChatGPT, Google’s AI answers and similar tools don’t know your business first-hand. They read what is public on the web: your website, your business listings, your reviews and what other sites say about you. Then they summarise it. If that information is clear, consistent and easy to crawl, the summary is accurate. If it is thin or contradictory, the tool guesses.

Where do AI search tools get their information about a business?

Each tool has its own sources, and all of them start from the open web.

  • ChatGPT search uses third-party search providers, Microsoft Bing among them, along with OpenAI’s own crawler, called OAI-SearchBot.
  • Google’s AI Overviews and AI Mode are built on Google Search. Google describes a technique called query fan-out: it runs several related searches across subtopics and sources, then writes one answer with links.

So an AI answer about your business is assembled from pages a search engine already knows. A business that is hard to find in ordinary search is also hard for an AI tool to describe.

Can AI tools reach your website?

A crawler can only read pages it is allowed to fetch. The rules sit in a small file on your site called robots.txt. OpenAI documents three crawlers, each with a different job:

  • OAI-SearchBot finds pages for ChatGPT search. OpenAI states that sites that block it will not be shown in ChatGPT search answers.
  • GPTBot collects content for training AI models. Blocking it does not remove you from ChatGPT search.
  • ChatGPT-User fetches a page when a person asks ChatGPT to open it.

You can allow one and block another. Many security plugins and hosting firewalls block “AI bots” as a group, so check that yours hasn’t blocked the search crawler along with the training one.

What do they read on your pages?

Mostly the text. Google’s guidance for AI features asks site owners to make sure important content is available as text, that pages can be found through internal links, and that the page works well for visitors.

For a business website that means stating the basics in plain sentences: what you do, who you do it for, where you work, what it costs or how pricing works, and how to get in touch. A fact that appears only inside an image, a video or a PDF is easy for a machine to miss.

Questions and answers help too. People ask AI tools full questions, and a page that answers the same question in a short paragraph is easy to quote.

What does structured data add?

Structured data, also called schema markup, is a block of code that labels facts on the page: this is the business name, this is the address, these are the opening hours, this is a question and its answer. It removes guesswork about facts a machine would otherwise have to infer from the layout.

It is not a shortcut. Google says there is no special structured data to add for its AI features, and that your structured data should match the visible text on the page. Mark up what is truly there, and keep the two in step when something changes.

Why does the rest of the web matter?

AI tools compare sources. If your website says one phone number, your Google Business Profile another and an old directory a third, a tool has no way to know which is right. Google’s guidance names an up-to-date Business Profile as part of preparing for AI features.

Check that your name, address, phone number, hours and services match on your website, your Business Profile, your social profiles and the main directories for your industry. Reviews and mentions on other sites are also read, and they are the part you influence only by doing good work and asking customers to say so.

What can’t you control?

No one can guarantee that an AI assistant will recommend a business. The answer changes with the question, the person’s location and the sources the tool picked that day. What you control is whether the facts it finds are correct and whether your site is one of the sources it can read.

A short checklist

  • Your site is indexed in Google and Bing, and robots.txt does not block search crawlers.
  • The homepage says in the first screen what you do, for whom and where.
  • Each service has its own page, with real questions answered in text.
  • Structured data for your business, services and FAQs matches what the page shows.
  • Your business details are identical everywhere they appear.
  • You ask ChatGPT and Google about your business every few months and fix the source of anything wrong.

Frequently asked questions

Is AI search optimization different from SEO?

It rests on the same work. Google says there are no extra requirements for appearing in AI Overviews or AI Mode beyond its usual search guidance. The difference is emphasis: clear facts, direct answers and consistency matter even more when a machine writes the summary.

Do I need an llms.txt file?

It is optional. Google says you do not need new machine-readable files or AI text files to appear in its AI features. A short llms.txt does no harm, and it comes after getting your pages, structured data and listings right.

How do I see what ChatGPT says about my business?

Ask it the questions a customer would: what the business does, where it is, what it costs and who the alternatives are. Note anything wrong, find the page or listing it came from and correct it there.

Should I block AI crawlers?

Decide by purpose. Blocking training crawlers such as GPTBot keeps your content out of model training. Blocking search crawlers such as OAI-SearchBot removes you from the answers customers see, which most businesses don’t want.