[The Census](https://readinessindex.io/census)

[Q4 2026](https://readinessindex.io/census/2026-Q4)

[Published figures](https://readinessindex.io/census/2026-Q4/us/claims)

us-llms-txt

AI posture

6.6%

# 6.6% of the 34,415 scored census entries across 16 cohorts in the United States pass the test of whether they publish an llms.txt file (EXT-1). A further 8,173 refused the scanner and are not counted.

Sites2,270 of 34,415 scored sites

Group[United States](https://readinessindex.io/census/2026-Q4), 16 cohorts pooled

Distinct addresses32,758 (a site on two rosters is two entries)

Test[EXT-1](https://openstandard.readinessindex.io/tests/#ext-1): Do you publish an llms.txt file for coding assistants?

EditionCensus Q4 2026, Index 12.1, computed 2026-11-06

CaveatPublic rosters, not a random sample of the web; a site on more than one roster counts once in each, and says nothing about sites outside the United States.

## How to check

- The group and its sites: [United States](https://readinessindex.io/census/2026-Q4).
- How the census is run: [methodology](https://readinessindex.io/census/methodology).
- The figures: [summary.json](https://readinessindex.io/census/2026-Q4/data/summary.json) or [claims.json](https://readinessindex.io/census/2026-Q4/us/claims.json).
- Every published figure: [all claims for the United States](https://readinessindex.io/census/2026-Q4/us/claims).

Link to this claim: [https://readinessindex.io/census/2026-Q4/us/claims/us-llms-txt](https://readinessindex.io/census/2026-Q4/us/claims/us-llms-txt)

Cite as **TEN7 Readiness Index Census 2026-Q4**

Source reply: Source: TEN7 Readiness Index Census 2026-Q4 (Index 12.1). 16 published cohorts pooled: United States, n = 34,415. Public rosters, not a random sample of the web. Figures are CC BY 4.0. Data: https://readinessindex.io/census/2026-Q4/us/claims/us-llms-txt