Getting named and cited by ChatGPT, Perplexity, Gemini and Google AI Overviews.
llms.txt explained: what the file is, who proposed it, and what a 300,000-domain study found about whether it affects AI citations.
How to rank in ChatGPT: allow OAI-SearchBot, get indexed by Bing, and write facts that are checkable on the page itself.
Generative engine optimization (GEO) explained: what it means, how it differs from SEO, and what the research on AI citations actually shows.
GEO and SEO are not rivals. Here is what genuinely differs between ranking in a list of links and being quoted inside an AI answer.