In detail
llms.txt lists what a business does and links to its most useful pages in a simple format that language models can read easily. It is a community proposal rather than an official standard, and support varies between AI tools.
It is quick to add and complements, rather than replaces, structured data and good page content.
How this relates to our work
llms.txt comes up most often in our AI search optimization work. Answer engine optimization (AEO) and generative engine optimization (GEO) so ChatGPT, Gemini, Perplexity and Google AI Overviews understand, mention and cite your business.