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How to Get Your Business Cited by ChatGPT, Perplexity and Gemini

By the Gletus Technology team, Rohini, New Delhi · Last updated · 8 min read

The short answer

AI answer engines such as ChatGPT Search, Perplexity, Gemini and Copilot select passages to quote rather than ranking pages. To be cited, a website needs four things: crawler access explicitly granted to AI user agents in robots.txt, self-contained answer passages that make sense when lifted out of the page, clear publisher identity through structured data so the source can be attributed, and visible, accurate last-updated dates. Conventional SEO still matters because most answer engines retrieve from a conventional search index first.

A growing share of commercial research now begins in an AI assistant rather than a search box. The mechanics of being recommended there are related to SEO but not identical, and the differences are worth understanding precisely.

The key difference: passages, not pages

A search engine ranks documents and shows you a list. An answer engine retrieves documents, extracts the passages that answer the question, and writes a response citing its sources. It never shows a ranked list at all.

That single difference drives everything else. A page can be excellent overall and still never be quoted, because its answer is distributed across six sections and no individual passage stands on its own. The unit of optimisation is the passage.

1. Let the crawlers in

This is the step most often missed, and it is binary: a page an AI crawler cannot fetch can never be cited. The relevant user agents include:

Note that Google-Extended does not affect normal Google Search rankings at all. It controls only whether your content may ground Gemini and AI Overview answers. Blocking it costs you nothing in classic search and removes you from AI citation entirely.

2. Write passages that survive extraction

The practical test: take any paragraph out of your page and read it alone. Does it still make sense? Does it say who is making the claim? If it depends on the previous three paragraphs, it will not be quoted.

What works:

3. Make attribution easy

An answer engine that cannot confidently identify a publisher will often decline to cite it. Make identity unambiguous:

Recency deserves emphasis. Answer engines strongly prefer current sources, and a page with no date at all is treated as unknown rather than fresh.

4. Publish an llms.txt

An llms.txt file at the root of your domain gives AI systems a plain, accurate description of your organisation and links to the pages that support each claim. Support is not universal and it is not a formal standard, but it is inexpensive to publish, easy to keep accurate, and removes ambiguity for any system that does read it.

5. Keep doing conventional SEO

Most answer engines retrieve from a conventional index before generating. If you do not rank, you are not retrieved, and if you are not retrieved you cannot be cited. Crawlability, speed, internal linking and genuine authority remain the foundation. GEO sits on top of that foundation; it does not substitute for it.

What does not work

Hidden text aimed at AI crawlers is cloaking, and it is penalised by search engines. Stuffing prompts or instructions into page content in the hope of manipulating a model is unreliable and reads as spam to human visitors. Fabricated statistics are the worst option of all: once quoted by an assistant and traced back, they damage exactly the credibility the exercise was meant to build.

The durable version of this work is unglamorous. Say true things clearly, in passages that stand on their own, from a source that is easy to identify, on a site that loads quickly and lets the crawlers in.

Frequently asked questions

What is GEO or generative engine optimisation?
GEO is the practice of making a website more likely to be quoted in AI-generated answers. It overlaps heavily with SEO but optimises for passage extraction and attribution rather than for a ranked position in a list of links.
Do I need to allow GPTBot in robots.txt?
If you want to appear in ChatGPT answers, yes. GPTBot and OAI-SearchBot are OpenAI's crawlers, and a page they cannot fetch cannot be cited. Many sites block them by default to withhold training data, which also removes them from citation eligibility.
What is llms.txt?
llms.txt is an emerging convention: a plain-text or Markdown file at the root of a site giving AI systems a concise, accurate summary of what the organisation is and does, with links to key pages. It is not yet a formal standard and support varies, but it is cheap to publish and unambiguous when read.
Does traditional SEO still matter for AI search?
Very much. Most AI answer engines retrieve candidate documents from a conventional search index before generating an answer. A page that ranks nowhere is rarely retrieved, and therefore rarely cited. GEO is an addition to SEO, not a replacement.
About the author. This guide was written and is maintained by the team at Gletus Technology Pvt Ltd, a software development company at 252, 2nd Floor, Blue Star Plaza, Sarja Market, Sector-7, Rohini, New Delhi 110085. We build websites, mobile apps, ecommerce platforms and custom business software for clients in Delhi NCR, across India, and in the USA, UK, Canada, Australia and the UAE. Questions about anything here: +91 9131739457 or info@gletus.com.

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