Plain-English definition
LLM SEO is the craft of getting selected and cited by large language models like ChatGPT, Claude, Gemini, Perplexity, or Grok. These models reward clarity, consistency, and authority. If your content is vague, contradictory, or unsupported by external sources, it won’t get picked.
What people ask
How does LLM SEO work?
Models prefer cleanly defined entities, factual consistency, and supporting citations. Schema, FAQs, and external validation all help. Think of it as training the model to trust you.
How do you “do” LLM SEO?
Start with definitions and FAQs. Add schema. Interlink your site like a librarian. Then earn mentions in press, journals, or trusted directories. It’s entity work plus authority building.
Can you measure it?
Yes. Run weekly tests in ChatGPT, Perplexity, and Gemini. Log when your content surfaces. Track AI Overview pulls in Google. This becomes your “AI visibility score.”
Practical note
I’ve seen companies obsess over rankings while ignoring that their competitor is being quoted by ChatGPT. LLM SEO flips the script: optimize for the models people increasingly ask first.
Closing thought
If you want to win here, stop thinking in keywords and start thinking in entities, citations, and credibility. The models are smart enough to spot the difference.
See how EWR Digital applies this