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LLM SEO: How to Get Your Brand Recommended by ChatGPT and Gemini

Only 11% of domains cited by ChatGPT are also cited by Perplexity, according to a 2026 comparison of AI engines. Each model has its own habits, so your brand can appear in one answer and vanish from the next. LLM SEO is the discipline of closing that gap, and the brands that learn it early collect recommendations their competitors never see. Here is how it works.

What LLM SEO Covers

LLM SEO, also called LLMO or large language model optimisation, is the work of shaping your website and wider web presence so models mention and recommend your brand. Models learn about you in two ways. Training data gives them a general memory of your brand. Live retrieval lets ChatGPT search, Gemini and Perplexity fetch fresh pages while they answer. Strong LLM SEO feeds both: a clear, consistent identity for the memory and current, well-structured pages for the lookup.

Every Engine Plays by Different Rules

A Qwairy study of 118,101 AI answers found Perplexity cites about 22 sources per response, ChatGPT about 8 and Copilot about 2.5. That spread changes your odds on each platform. Freshness matters everywhere. Seer Interactive’s study of 7,683 cited pages found Gemini drew 78% of its cited content from pages updated in the last year, with ChatGPT at 73% and Perplexity at 65%. AI citations depend on the engine, so plan for each one.

How to Rank in ChatGPT

ChatGPT tends to favour established brands, so how to rank in ChatGPT starts with reputation. Earn mentions on review sites, directories and publications, and keep your own pages clear and factual. List-style content performs well: a March 2026 Wix study, reported by Position Digital, found listicles made up 21.9% of citations across ChatGPT, Perplexity and Google AI Mode. Write fair “best of” pages with stated criteria and disclose your own product openly. OpenAI also recommends allowing OAI-SearchBot in robots.txt so its search features can find you.

How to Rank in Perplexity

Perplexity retrieves pages in real time and shows more sources per answer, which gives smaller publishers a better shot. To rank in Perplexity, publish specifics: original data, comparison pages, glossary definitions and how-to guides. ICODA’s March 2026 test of 50 commercial queries found those formats were the ones Perplexity cited. Add dates, name your sources and update pages often.

What Gemini Rewards

Gemini sits on Google’s index and rewards recency the hardest. Keep your Google Business Profile accurate, refresh key pages with visible dates and publish YouTube explainers, since video transcripts add readable text to your footprint.

The llms.txt Question

The llms.txt file is a proposed Markdown index of your site for AI tools. SE Ranking analysed about 300,000 domains and found roughly 10% had one, with no measurable link to citation frequency, as Search Engine Journal reported. An Ahrefs log study of 137,210 domains found that 97% of valid llms.txt files received no requests in the study month. Adding one takes under an hour and carries little risk, so go ahead if you like. Put your real effort into the pages themselves.

A Five-Step LLM SEO Checklist to Get Cited by AI

  1. Define your brand in one sentence. Use the same name, category and location on your site, social profiles and directories.
  2. Write answer-first pages. Give the direct answer in the opening lines, then add data and named sources.
  3. Build comparison and FAQ pages. These match the formats engines cite most.
  4. Refresh your top pages every quarter. Show an “Updated” date and replace old figures.
  5. Earn mentions off your site. Reviews, press, Reddit and YouTube all widen the web footprint models draw from.

Then test 20 buyer prompts each month in ChatGPT, Gemini and Perplexity, and log who gets recommended.

Put LLM SEO to Work With Digilitics

LLM SEO pulls together content, technical SEO, social presence and data. Digilitics, a Hyderabad digital marketing company with over 400 projects delivered and a 98% client satisfaction rate, covers each part:

Want to see how AI tools describe your brand today? Claim a free website audit or book a callback.

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