72.4%
In the Q3 2026 SAVI signal sample of 20,000 recent audits on the current engine (August 2026), 72.4% of websites publish no llms.txt, the emerging standard for describing key content directly to AI crawlers.
What this means
With 72.4% of sites in the sample publishing no llms.txt file, a comprehensive one is still a genuine differentiator. It gives AI crawlers a curated map of a site's most important content rather than leaving them to infer it. Adoption is low enough that early movers gain disproportionate clarity in how they are read.