# All crawlers
User-agent: *
Allow: /
Allow: /_next/static/
Allow: /_next/image/
Disallow: /ad-manager-assets/
Content-Signal: ai-train=no, search=yes, ai-input=yes

# AI search and user-triggered crawlers — explicitly allowed
User-agent: OAI-SearchBot
Allow: /

User-agent: ChatGPT-User
Allow: /

User-agent: OAI-AdsBot
Allow: /

# Other search and assistant crawlers
User-agent: Claude-Web
User-agent: PerplexityBot
User-agent: Amazonbot
Allow: /

# AI training crawlers — search/input allowed, training disallowed
User-agent: GPTBot
Disallow: /

User-agent: Google-Extended
User-agent: Applebot-Extended
User-agent: ClaudeBot
User-agent: Anthropic-AI
User-agent: cohere-ai
User-agent: CCBot
Disallow: /

# LLM context files
# https://www.systemdesignsandbox.com/llms.txt
# https://www.systemdesignsandbox.com/llms-full.txt

# Host
Host: https://www.systemdesignsandbox.com

# Sitemaps
Sitemap: https://www.systemdesignsandbox.com/sitemap.xml