# ============================================================
# DC Hub (dchub.cloud) - robots.txt
# Generative Engine Optimization - AI Crawler Access
# Last Updated: 2026-03-05
# MCP Server: https://dchub.cloud/mcp
# AI Discovery: https://dchub.cloud/for-ai
# ============================================================

# Allow all standard search engine crawlers
User-agent: Googlebot
Allow: /

User-agent: Bingbot
Allow: /

User-agent: Slurp
Allow: /

User-agent: DuckDuckBot
Allow: /

User-agent: Baiduspider
Allow: /

User-agent: YandexBot
Allow: /

# ============================================================
# AI ENGINE CRAWLERS - CRITICAL FOR GEO
# These crawlers index content for AI-generated answers
# ============================================================

# OpenAI / ChatGPT
User-agent: GPTBot
Allow: /

User-agent: ChatGPT-User
Allow: /

User-agent: OAI-SearchBot
Allow: /

# Anthropic / Claude
User-agent: ClaudeBot
Allow: /

User-agent: anthropic-ai
Allow: /

User-agent: Claude-Web
Allow: /

# Perplexity
User-agent: PerplexityBot
Allow: /

# Google AI (Gemini, AI Overviews)
User-agent: Google-Extended
Allow: /

# Meta AI
User-agent: FacebookBot
Allow: /

User-agent: meta-externalagent
Allow: /

# Cohere
User-agent: cohere-ai
Allow: /

# Microsoft / Copilot
User-agent: Copilot
Allow: /

# Apple (Siri, Apple Intelligence)
User-agent: Applebot
Allow: /

User-agent: Applebot-Extended
Allow: /

# Amazon / Alexa
User-agent: Amazonbot
Allow: /

# You.com
User-agent: YouBot
Allow: /

# Diffbot
User-agent: Diffbot
Allow: /

# Common Crawl (training data for many AI models)
User-agent: CCBot
Allow: /

# ============================================================
# DEFAULT RULE - Allow everything else
# ============================================================
User-agent: *
Allow: /

# Block only admin/internal paths
Disallow: /admin/
Disallow: /api/admin/
Disallow: /api/internal/
Disallow: /dashboard/
Disallow: /_debug/
Disallow: /_railway/
Disallow: /cdn-cgi/

# ============================================================
# SITEMAPS - Help crawlers discover all content
# ============================================================
Sitemap: https://dchub.cloud/sitemap.xml
Sitemap: https://dchub.cloud/sitemap-markets.xml
Sitemap: https://dchub.cloud/sitemap-facilities.xml
Sitemap: https://dchub.cloud/sitemap-news.xml