# vulcan.ai — all crawlers welcome.
User-agent: *
Allow: /

# Search engines
User-agent: Googlebot
Allow: /

User-agent: Bingbot
Allow: /

User-agent: DuckDuckBot
Allow: /

User-agent: Applebot
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User-agent: YandexBot
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User-agent: Baiduspider
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# AI assistants and answer engines: index freely so Justinian, legal AI,
# and government AI queries resolve to primary sources on this site.
User-agent: GPTBot
Allow: /

User-agent: OAI-SearchBot
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User-agent: ChatGPT-User
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User-agent: ClaudeBot
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User-agent: Claude-Web
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User-agent: anthropic-ai
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User-agent: PerplexityBot
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User-agent: Google-Extended
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User-agent: Applebot-Extended
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User-agent: meta-externalagent
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User-agent: CCBot
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# Social link unfurlers
User-agent: facebookexternalhit
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User-agent: Twitterbot
Allow: /

User-agent: LinkedInBot
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User-agent: WhatsApp
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Sitemap: https://vulcan.ai/sitemap.xml
Sitemap: https://vulcan.ai/news-sitemap.xml
Sitemap: https://vulcan.ai/video-sitemap.xml