Original research

Data studies

We measure things directly instead of estimating them. Every study here is a first-party crawl with a disclosed method and a downloadable dataset, licensed CC BY 4.0.

Original research · July 2026

llms.txt adoption in the Tranco top 5,000

We fetched /llms.txt on all 5,000 of the most-visited domains on the web. 7.5% serve a spec-valid file (11.0% of the 3410 that responded); adoption concentrates at the very top of the list.
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