# Postbot — physical mail for AI agents (Czech Republic)
# Agents & crawlers welcome. Machine-readable entrypoints:
#   /llms.txt                    — plain-text guide for agents
#   /.well-known/mcp.json        — MCP server descriptor
#   /.well-known/api-catalog     — RFC 9727 API catalog (linkset)
#   /.well-known/ard.json        — ARD capability manifest (also ai-catalog.json)

# Content-Signal (https://contentsignals.org/) grants search, AI input, and AI
# training use. A crawler reads only its most specific group, so every group
# below repeats the same line.
User-agent: *
Content-Signal: search=yes, ai-input=yes, ai-train=yes
Allow: /

# Cloudflare's managed robots.txt (prepended above this file at the edge) may
# disallow AI crawlers by default. Postbot WANTS to be readable and citable by
# AI systems — the explicit groups below re-allow them. Under REP, when equally
# specific allow and disallow rules collide, the allow wins.
User-agent: GPTBot
Content-Signal: search=yes, ai-input=yes, ai-train=yes
Allow: /

User-agent: OAI-SearchBot
Content-Signal: search=yes, ai-input=yes, ai-train=yes
Allow: /

User-agent: ChatGPT-User
Content-Signal: search=yes, ai-input=yes, ai-train=yes
Allow: /

User-agent: ClaudeBot
Content-Signal: search=yes, ai-input=yes, ai-train=yes
Allow: /

User-agent: Claude-User
Content-Signal: search=yes, ai-input=yes, ai-train=yes
Allow: /

User-agent: Claude-SearchBot
Content-Signal: search=yes, ai-input=yes, ai-train=yes
Allow: /

User-agent: PerplexityBot
Content-Signal: search=yes, ai-input=yes, ai-train=yes
Allow: /

User-agent: Perplexity-User
Content-Signal: search=yes, ai-input=yes, ai-train=yes
Allow: /

User-agent: Google-Extended
Content-Signal: search=yes, ai-input=yes, ai-train=yes
Allow: /

User-agent: Applebot-Extended
Content-Signal: search=yes, ai-input=yes, ai-train=yes
Allow: /

User-agent: Amazonbot
Content-Signal: search=yes, ai-input=yes, ai-train=yes
Allow: /

User-agent: CCBot
Content-Signal: search=yes, ai-input=yes, ai-train=yes
Allow: /

User-agent: meta-externalagent
Content-Signal: search=yes, ai-input=yes, ai-train=yes
Allow: /

User-agent: MistralAI-User
Content-Signal: search=yes, ai-input=yes, ai-train=yes
Allow: /

Sitemap: https://postbot.cz/sitemap.xml