# Search engines
User-agent: *
Allow: /

# --- AI assistants: search / citation crawlers (drive citations) ---
User-agent: OAI-SearchBot
Allow: /

User-agent: ChatGPT-User
Allow: /

User-agent: Claude-SearchBot
Allow: /

User-agent: Claude-User
Allow: /

User-agent: PerplexityBot
Allow: /

User-agent: Perplexity-User
Allow: /

User-agent: MistralAI-Index
Allow: /

User-agent: MistralAI-User
Allow: /

User-agent: DuckAssistBot
Allow: /

User-agent: Amzn-SearchBot
Allow: /

# --- AI model training crawlers (visibility inside future models) ---
User-agent: GPTBot
Allow: /

User-agent: ClaudeBot
Allow: /

User-agent: Google-Extended
Allow: /

User-agent: Applebot-Extended
Allow: /

User-agent: meta-externalagent
Allow: /

User-agent: Amazonbot
Allow: /

User-agent: CCBot
Allow: /

# AI-readable site index: https://vertical-axis.com/llms.txt
# Full page text for assistants: https://vertical-axis.com/llms-full.txt

Sitemap: https://vertical-axis.com/sitemap.xml