SEO glossaryUpdated

What is LLM SEO, and how does it work?

LLM SEO is the practice of optimising your content and brand presence so that products built on large language models, such as ChatGPT, Claude, Gemini, Perplexity, and Google AI Overviews, retrieve your pages, cite them, and describe or recommend your brand accurately. It overlaps almost entirely with generative engine optimization (GEO) and answer engine optimization (AEO); the name simply emphasises the underlying technology.

LLM SEO is one of several names for the same shift: people asking AI systems instead of, or as well as, searching. This entry defines the term, gives concrete examples of LLM SEO work, and explains how it relates to classic SEO.

By , Founder, SerionFlow

What we measured ·

What Google shows for "what is llm seo" right now

Method: Live Google results (United States, desktop, English) for "what is llm seo" retrieved through DataForSEO's SERP API on 2026-10-22. Page types are our own classification of each ranking URL.

The top 8 organic results for "what is llm seo" were 6 guides or explainers, 1 video, 1 product or service page. The first three were yoast.com, neilpatel.com, napollo.net.

Google showed an AI Overview for this query, citing 7 source domains including yoast.com, neilpatel.com, www.reddit.com, dwao.in. Pages that state the answer directly and early are the ones an Overview can quote.

People Also Ask listed: "Which LLM is best for SEO?"; "What are the four types of SEO?"; "What is the difference between SEO and LLM?"; "What is LLM SEO called?". The sections below answer the ones within this page's scope.

Top organic results for "what is llm seo", 2026-10-22
PositionDomainPage type
1yoast.comGuide or explainer
2neilpatel.comGuide or explainer
3napollo.netGuide or explainer
4www.linkedin.comGuide or explainer
5dwao.inGuide or explainer
6www.youtube.comVideo
01

How LLM-based products use web content

LLM products use web content in two ways. During training, models learn associations between names, categories, and facts from large text collections. At answer time, many products retrieve current pages through search and write an answer from them, often with citations. LLM SEO targets both: being described accurately and consistently across the web, and being retrievable and quotable when an answer is written.

02

Examples of LLM SEO work

Typical tasks fall into four groups.

LLM SEO tasks with examples
AreaExample task
AccessAllow OAI-SearchBot, PerplexityBot, and Claude-SearchBot; serve content in server-rendered HTML
ContentRewrite a pricing page so the first sentence states plans and prices with a date
Entity clarityUse the same category description for the product on the site, LinkedIn, and review sites
MentionsCorrect an outdated description of the product in a widely cited comparison article
MeasurementRun 40 buyer prompts three times each per engine monthly and log mentions
03

LLM SEO, GEO, AEO, and SEO

GEO, generative engine optimization, is the term from the 2023 research paper and is the most common synonym. AEO, answer engine optimization, emphasises being the direct answer, including in classic features such as featured snippets. SEO remains the foundation: LLM products mostly find current content through search indexes, so pages that cannot be crawled or indexed are invisible to them too. Choose one name for your team and measure both search and AI visibility.

04

Which LLM is best for SEO work?

This question from People Also Ask is about a different meaning: using an LLM to do SEO tasks. Any of the leading models can cluster keywords, draft outlines, and analyse exports when given real data; the choice matters less than providing accurate inputs and checking outputs. Our guide to using ChatGPT for SEO covers the workflow.

05

Where to start

Check AI crawler access with our free checker, fix the opening paragraphs of your five most important pages so they state facts plainly, and write a prompt set to measure a baseline. Then read our guide to optimising content for LLMs for the writing techniques. SerionFlow builds new pages in this answer-first form behind quality gates; it does not replace the mention work, which happens on other sites.

Clear answers

Frequently asked questions

What is the difference between SEO and LLM SEO?

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SEO aims for rankings in search results. LLM SEO aims for mentions and citations in answers written by language model products. They share foundations, and LLM SEO adds measurement across AI engines and work on cited third-party sources.

What is LLM SEO called?

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It is also called generative engine optimization (GEO), answer engine optimization (AEO), AI SEO, or AI search optimization.

About the author

· Founder, SerionFlow

Shadrack builds SerionFlow's site research, page generation, and Search Console tooling, and runs the free tools these guides pair with. Search Console figures cited on these pages come from serionflow.com's own property.

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