llms.txt explained.

llms.txt is a proposed convention, akin to robots.txt, for telling LLM-powered crawlers which pages on a site are canonical sources, which are duplicates, and which to skip. Adoption inside the major engines is uneven in 2026, but the cost of shipping one is small and the upside is real: a clean llms.txt that points the answer engines at primary-source pages, like our case studies and our reports, materially improves citation quality. Our own llms.txt is the worked example, and the longform with the per-section template ships in June 2026.