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llms.txt GeneratorSaaS and developer sites adopt llms.txt far more often
SaaS and developer tools reach 24.1% llms.txt adoption in the study.
The file is culturally concentrated among technical sites.
The numbers behind it.
- SaaS/developer adoption
- Highest named category adoption in the study.
- 24.1%
The evidence.
Source
The llms.txt Effect
| Measure | Result |
|---|---|
| SaaS/developer adoption Highest named category adoption in the study. | 24.1% |
Population and method
Built from HTTP scans of 37,894 AI-cited domains, linked to 337,362 citations and 882 citation snapshots in the Trakkr corpus.
Where the evidence stops
This is an observational study. It measures correlation with citation outcomes, not a controlled experiment.
Adoption is uneven by sector, so raw averages can hide category concentration in SaaS and developer tooling.
The top-5,000 test returns p=0.85. The full scanned sample returns p<0.001 with reported r=-0.065. Neither establishes a causal effect. The public aggregates do not include confidence intervals or document the cohort for citation means and medians well enough to recompute the tests.
What to do with this
Adoption patterns should not be mistaken for universal citation best practice.
Cite this fact.
Source study: llms.txt Effect“SaaS and developer tools reach 24.1% llms.txt adoption in the study.”
The llms.txt Effect - Trakkr Research · SaaS and developer sites adopt llms.txt far more often
The llms.txt Effect · Trakkr Research · Updated 4 September 2026