The term borrows familiar SEO vocabulary because many underlying mechanics carry over: crawlability, structured data, and authoritative backlinks still influence whether a model’s retrieval layer finds a page at all. But the endpoint is different. Traditional SEO optimizes for a ranked position on a results page, while LLM SEO optimizes for being selected as source material and paraphrased faithfully inside a generated answer.
Because model providers rarely disclose exactly how retrieval and citation decisions are made, LLM SEO remains more empirical than traditional SEO: practitioners test changes, watch whether mention or citation rates shift, and iterate rather than follow a fixed checklist. Consistency, factual accuracy, and being cited by sources the model already trusts tend to matter more than any single on-page trick.