# robots.txt for ghostzerosystems.com
# Strategy: allow normal + AI search/citation bots, block AI training crawlers.

User-agent: *
Content-Signal: search=yes,ai-train=no,ai-input=no
Allow: /

# === AI search / citation bots — explicitly allowed ===
User-agent: Googlebot
Allow: /

User-agent: bingbot
Allow: /

User-agent: Slurp
Allow: /

User-agent: DuckDuckBot
Allow: /

User-agent: Applebot
Allow: /

User-agent: YandexBot
Allow: /

User-agent: OAI-SearchBot
Allow: /

User-agent: ChatGPT-User
Allow: /

User-agent: PerplexityBot
Allow: /

User-agent: Perplexity-User
Allow: /

User-agent: Claude-User
Allow: /

User-agent: Claude-SearchBot
Allow: /

User-agent: MistralAI-User
Allow: /

User-agent: DuckAssistBot
Allow: /

User-agent: YouBot
Allow: /

# === AI training crawlers — blocked ===
User-agent: GPTBot
Disallow: /

User-agent: ClaudeBot
Disallow: /

User-agent: anthropic-ai
Disallow: /

User-agent: Google-Extended
Disallow: /

User-agent: Applebot-Extended
Disallow: /

User-agent: CCBot
Disallow: /

User-agent: Meta-ExternalAgent
Disallow: /

User-agent: FacebookBot
Disallow: /

User-agent: cohere-ai
Disallow: /

User-agent: Bytespider
Disallow: /

User-agent: PetalBot
Disallow: /

User-agent: Diffbot
Disallow: /

User-agent: Omgilibot
Disallow: /

User-agent: Omgili
Disallow: /

User-agent: Timpibot
Disallow: /

User-agent: AI2Bot
Disallow: /

User-agent: AI2Bot-Dolma
Disallow: /

User-agent: ImagesiftBot
Disallow: /

User-agent: Kangaroo Bot
Disallow: /

User-agent: Sidetrade indexer bot
Disallow: /

Sitemap: https://ghostzerosystems.com/sitemap-index.xml