Enterprise LLMs.txt Adoption Index

Tracking adoption across leading public companies

A reproducible weekly crawl of U.S. SEC registrants ranked by latest annual revenue. Every classification includes a public audit trail.

Pilot cohort: 100 companies ยท Last checked loading

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Industry

Adoption by industry

    Rate is verified files among companies we could successfully test in each industry. Blocked and indeterminate companies are excluded from the denominator, not counted as absent.

    Discovery

    Verified file locations

      New signal

      Latest verified adopters

        Change

        Recently removed

          Audit table

          Company-level results

          Rank Company Status Location Last checked

          Methodology

          Strict, transparent verification

          Verified files must return readable text whose first meaningful Markdown element is a nonempty H1. HTML error pages, soft 404s, login pages, and bot challenges do not count.

          Company universe
          Latest annual revenue from official SEC Financial Statement Data Sets.
          Blocked sites
          Reported as indeterminate, never silently counted as absent.
          Discovery
          Canonical roots, explicit references, documentation hosts, and limited common paths.
          Standards
          llms.txt proposal, SEC data, and RFC 9309.