{
  "kind": "fact",
  "studySlug": "llmstxt-effect",
  "slug": "saas-and-developer-sites-adopt-llms-txt-far-more-often",
  "title": "SaaS and developer sites adopt llms.txt far more often",
  "description": "The file is culturally concentrated among technical sites.",
  "lastUpdated": "2026-03-14",
  "lastTested": "2026-03-14",
  "sourceStudyUrl": "/trakkr-research/llmstxt-effect",
  "sourceStudyTitle": "The llms.txt Effect",
  "claimIds": [
    "llmstxt-effect:saas-adoption"
  ],
  "relatedSlugs": [
    "answer:why-is-llms-txt-getting-so-much-attention-if-the-effect-is-null",
    "answer:do-the-raw-citation-averages-show-any-real-advantage",
    "tracker:llmstxt-adoption-by-tier-tracker"
  ],
  "methodologySummary": "Built from HTTP scans of 37,894 AI-cited domains, linked to 337,362 citations and 882 citation snapshots in the Trakkr corpus.",
  "limitations": [
    "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.",
    "A null citation effect does not mean llms.txt has zero operational value for every workflow. It means the study did not find a measurable citation lift."
  ],
  "keywords": [
    "llms.txt",
    "llms txt effect",
    "AI citations",
    "does llms.txt work"
  ],
  "schemaHints": {
    "pageType": "Article",
    "includeDataset": true
  },
  "claim": "SaaS and developer tools reached 24.1 percent llms.txt adoption, representing the highest named category adoption in the study.",
  "supportingMetrics": [
    {
      "label": "SaaS/developer adoption",
      "value": "24.1%",
      "detail": "Highest named category adoption in the study."
    }
  ],
  "whyItMatters": "Strategists and operators must recognize that this 24.1 percent adoption rate is highly concentrated in technical sectors and should not be mistaken for a universal citation best practice across broader industries.",
  "citationBlock": {
    "quote": "SaaS and developer tools reach 24.1% llms.txt adoption in the study.",
    "attribution": "The llms.txt Effect - Trakkr Research",
    "url": "https://trakkr.ai/trakkr-research/llmstxt-effect/facts/saas-and-developer-sites-adopt-llms-txt-far-more-often"
  }
}