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# `llms.txt` Observatory

A public, dated measurement layer for llms.txt. The figures describe a fixed panel and observable HTTP behavior, not all websites or AI usage.

Last updated: October 5, 2026

Study with Firecrawl

## [Detecting llms.txt files: what an analysis of 2,000 domains shows](/observatory/firecrawl-llms-txt-2000-domains/)

192 files recognized across 2,000 domains. Study with Firecrawl: charts, method, limits and practical checks for your site.
Read the study  →      192 / 2 000           
On this page

- [ Latest snapshot ](#snapshot)
- [ By sector ](#sectors)
- [ V2 implementation signals ](#v2)
- [ Downloads and scope ](#downloads)             
## Latest fixed-panel snapshot

57.6%

125 of 217 testable hosts served a qualifying file

14.0 KB

median file size across parsed directory files

85.6%

parsed directory files with a blockquote summary

The current observation was generated on 2026-10-05. The panel is fixed and curated. It should be compared with future releases, not extrapolated
to the web.

The observatory is designed for reproducibility. It records the public HTTP response, parse
outcome and link checks available at release time, so a reader can distinguish adoption, syntax
quality and discovery signals instead of treating a served file as proof of AI usage.

## By sector
Sector  Tested  Serving  Rate        AI & ML   36   21   58.3%        Developer tools   61   44   72.1%        Docs platforms   7   5   71.4%        E-commerce   13   8   61.5%        Fintech   16   8   50%        Media   14   2   14.3%        Other   23   5   21.7%        SaaS   47   32   68.1%          
## V2 implementation signals

The v2 observation is narrower than a client-support matrix. It recorded 320 reachable links out of 330 checked, 40 Markdown
alternates, 9 `describedby` relations, and 23 hosts with a qualifying subpath
file.

## Downloads and scope

Use the [JSON release manifest](/observatory.json) for source hashes and limitations,
the [CSV](/observatory.csv) for sector values, and the [status endpoint](/observatory-status.json) for the current snapshot identifier. Read the full [methodology](/methodology/) before
quoting a number.

## Dated file analyses

Directory measurement: 5 October 2026.

These analyses describe the measured files, including their limits. Inclusion does not mean that a file has no structural errors or is used by an AI system.

- [Anthropic Docs](/llms-txt-directory/docs-anthropic-com/)
- [Cohere](/llms-txt-directory/cohere-com/)
- [ElevenLabs](/llms-txt-directory/elevenlabs-io/)
- [fal.ai](/llms-txt-directory/fal-ai/)
- [Google DeepMind](/llms-txt-directory/deepmind-google/)
- [Groq Console](/llms-txt-directory/console-groq-com/)
- [LangChain Docs](/llms-txt-directory/docs-langchain-com/)
- [Mistral AI](/llms-txt-directory/mistral-ai/)
- [Mistral Docs](/llms-txt-directory/docs-mistral-ai/)
- [Modal](/llms-txt-directory/modal-com/)
- [OpenRouter](/llms-txt-directory/openrouter-ai/)
- [Perplexity Docs](/llms-txt-directory/docs-perplexity-ai/)
- [Pinecone](/llms-txt-directory/pinecone-io/)
- [Pinecone Docs](/llms-txt-directory/docs-pinecone-io/)
- [Qdrant](/llms-txt-directory/qdrant-tech/)
- [Replicate](/llms-txt-directory/replicate-com/)
- [Together AI](/llms-txt-directory/together-ai/)
- [Together AI Docs](/llms-txt-directory/docs-together-ai/)
- [W&B Docs](/llms-txt-directory/docs-wandb-ai/)
- [Weaviate](/llms-txt-directory/weaviate-io/)
- [xAI Docs](/llms-txt-directory/docs-x-ai/)
- [Angular](/llms-txt-directory/angular-dev/)
- [Bun](/llms-txt-directory/bun-sh/)
- [ClickHouse](/llms-txt-directory/clickhouse-com/)
- [Cloudflare](/llms-txt-directory/cloudflare-com/)
- [Cloudflare Developers](/llms-txt-directory/developers-cloudflare-com/)
- [Databricks](/llms-txt-directory/databricks-com/)
- [Databricks Docs](/llms-txt-directory/docs-databricks-com/)
- [Datadog](/llms-txt-directory/datadoghq-com/)
- [Datadog Docs](/llms-txt-directory/docs-datadoghq-com/)
- [Docker Docs](/llms-txt-directory/docs-docker-com/)
- [Drizzle Docs](/llms-txt-directory/orm-drizzle-team/)
- [DuckDB](/llms-txt-directory/duckdb-org/)
- [Fly.io](/llms-txt-directory/fly-io/)
- [GitHub](/llms-txt-directory/github-com/)
- [GitHub Docs](/llms-txt-directory/docs-github-com/)
- [GitLab Docs](/llms-txt-directory/docs-gitlab-com/)
- [MongoDB](/llms-txt-directory/mongodb-com/)
- [Neon](/llms-txt-directory/neon-tech/)
- [Netlify](/llms-txt-directory/netlify-com/)
- [Netlify Docs](/llms-txt-directory/docs-netlify-com/)
- [New Relic](/llms-txt-directory/newrelic-com/)
- [Next.js](/llms-txt-directory/nextjs-org/)
- [Node.js](/llms-txt-directory/nodejs-org/)
- [Nuxt](/llms-txt-directory/nuxt-com/)
- [PlanetScale](/llms-txt-directory/planetscale-com/)
- [Postman](/llms-txt-directory/postman-com/)
- [Postman Learning](/llms-txt-directory/learning-postman-com/)
- [Prisma](/llms-txt-directory/prisma-io/)
- [Pulumi](/llms-txt-directory/pulumi-com/)
- [Railway](/llms-txt-directory/railway-com/)
- [React](/llms-txt-directory/react-dev/)
- [Redis](/llms-txt-directory/redis-io/)
- [Render](/llms-txt-directory/render-com/)
- [Sentry](/llms-txt-directory/sentry-io/)
- [Sentry Docs](/llms-txt-directory/docs-sentry-io/)
- [Supabase](/llms-txt-directory/supabase-com/)
- [Svelte](/llms-txt-directory/svelte-dev/)
- [Temporal](/llms-txt-directory/temporal-io/)
- [Temporal Docs](/llms-txt-directory/docs-temporal-io/)
- [tRPC](/llms-txt-directory/trpc-io/)
- [Turborepo](/llms-txt-directory/turbo-build/)
- [Vercel](/llms-txt-directory/vercel-com/)
- [Vite](/llms-txt-directory/vitejs-dev/)
- [Vue.js](/llms-txt-directory/vuejs-org/)
- [GitBook](/llms-txt-directory/gitbook-com/)
- [GitBook Docs](/llms-txt-directory/docs-gitbook-com/)
- [Mintlify](/llms-txt-directory/mintlify-com/)
- [ReadMe](/llms-txt-directory/readme-com/)
- [Scalar](/llms-txt-directory/scalar-com/)
- [BigCommerce](/llms-txt-directory/bigcommerce-com/)
- [BigCommerce Developer](/llms-txt-directory/developer-bigcommerce-com/)
- [Commercetools](/llms-txt-directory/commercetools-com/)
- [Etsy](/llms-txt-directory/etsy-com/)
- [Medusa](/llms-txt-directory/medusajs-com/)
- [Medusa Docs](/llms-txt-directory/docs-medusajs-com/)
- [Saleor](/llms-txt-directory/saleor-io/)
- [Shopify](/llms-txt-directory/shopify-com/)
- [Adyen](/llms-txt-directory/adyen-com/)
- [Adyen Docs](/llms-txt-directory/docs-adyen-com/)
- [Brex](/llms-txt-directory/brex-com/)
- [Coinbase](/llms-txt-directory/coinbase-com/)
- [Coinbase Developer](/llms-txt-directory/docs-cdp-coinbase-com/)
- [Plaid](/llms-txt-directory/plaid-com/)
- [Stripe](/llms-txt-directory/stripe-com/)
- [Stripe Docs](/llms-txt-directory/docs-stripe-com/)
- [CSS-Tricks](/llms-txt-directory/css-tricks-com/)
- [DEV Community](/llms-txt-directory/dev-to/)
- [Answer.AI](/llms-txt-directory/answer-ai/)
- [llms.txt spec](/llms-txt-directory/llmstxt-org/)
- [llmtxt.info (this site)](/llms-txt-directory/llmtxt-info/)
- [nbdev](/llms-txt-directory/nbdev-fast-ai/)
- [Ruby](/llms-txt-directory/ruby-lang-org/)
- [Amplitude](/llms-txt-directory/amplitude-com/)
- [Asana](/llms-txt-directory/asana-com/)
- [Atlassian](/llms-txt-directory/atlassian-com/)
- [Auth0](/llms-txt-directory/auth0-com/)
- [Cal.com](/llms-txt-directory/cal-com/)
- [Calendly](/llms-txt-directory/calendly-com/)
- [Clerk](/llms-txt-directory/clerk-com/)
- [ClickUp](/llms-txt-directory/clickup-com/)
- [Framer](/llms-txt-directory/framer-com/)
- [Gorgias](/llms-txt-directory/gorgias-com/)
- [HubSpot](/llms-txt-directory/hubspot-com/)
- [Intercom](/llms-txt-directory/intercom-com/)
- [Linear](/llms-txt-directory/linear-app/)
- [Loom](/llms-txt-directory/loom-com/)
- [Make](/llms-txt-directory/make-com/)
- [monday.com](/llms-txt-directory/monday-com/)
- [n8n](/llms-txt-directory/n8n-io/)
- [n8n Docs](/llms-txt-directory/docs-n8n-io/)
- [Notion](/llms-txt-directory/notion-com/)
- [Notion Developers](/llms-txt-directory/developers-notion-com/)
- [PostHog](/llms-txt-directory/posthog-com/)
- [Postmark](/llms-txt-directory/postmarkapp-com/)
- [Resend](/llms-txt-directory/resend-com/)
- [Slack](/llms-txt-directory/slack-com/)
- [Slack API](/llms-txt-directory/api-slack-com/)
- [Squarespace](/llms-txt-directory/squarespace-com/)
- [Wix](/llms-txt-directory/wix-com/)
- [WordPress.com](/llms-txt-directory/wordpress-com/)
- [WordPress.org](/llms-txt-directory/wordpress-org/)
- [WorkOS](/llms-txt-directory/workos-com/)
- [Zapier](/llms-txt-directory/zapier-com/)
- [Zendesk](/llms-txt-directory/zendesk-com/)           
## Sources

- [ Methodology and data limits ](https://llmtxt.info/methodology/)