A proposed site-root Markdown file for compatible agents and tools; not a proven AI-search ranking or citation signal.
ID
SS-DF-106
Confidence
Established · 78
Evidence
Established
Updated
2026-09-20
Definition
A proposed site-root Markdown file for compatible agents and tools; not a proven AI-search ranking or citation signal.
llms.txt is a voluntary convention for publishing a curated Markdown map of important content at a domain root. Chrome Lighthouse now checks the file's basic shape for agentic browsing, but Google Search says it does not use llms.txt and no major answer engine has documented the file as a universal retrieval or citation input. Treat it as low-cost agent-readiness housekeeping, not as a ranking guarantee or substitute for crawlable, indexable web pages.