User-agent: *
Allow: /
Disallow: /*?

# AI assistants are welcome to read the content (GEO — generative engine
# optimization). See llms.txt / llms-full.txt below for a curated index.
User-agent: GPTBot
Allow: /
Disallow: /*?

User-agent: OAI-SearchBot
Allow: /
Disallow: /*?

User-agent: ChatGPT-User
Allow: /
Disallow: /*?

User-agent: Google-Extended
Allow: /
Disallow: /*?

User-agent: ClaudeBot
Allow: /
Disallow: /*?

User-agent: Claude-Web
Allow: /
Disallow: /*?

User-agent: anthropic-ai
Allow: /
Disallow: /*?

User-agent: PerplexityBot
Allow: /
Disallow: /*?

User-agent: Perplexity-User
Allow: /
Disallow: /*?

User-agent: CCBot
Allow: /
Disallow: /*?

User-agent: Bytespider
Allow: /
Disallow: /*?

User-agent: Amazonbot
Allow: /
Disallow: /*?

User-agent: Applebot-Extended
Allow: /
Disallow: /*?

User-agent: meta-externalagent
Allow: /
Disallow: /*?

Sitemap: https://natalchart.co/sitemap.xml
Sitemap: https://natalchart.co/sitemap-hubs.xml
Sitemap: https://natalchart.co/sitemap-figures.xml
Sitemap: https://natalchart.co/sitemap-combos.xml
Sitemap: https://natalchart.co/sitemap-cells.xml
Sitemap: https://natalchart.co/sitemap-glossary.xml

# LLM guidance (llmstxt.org standard)
# https://natalchart.co/llms.txt — compact URL index
# https://natalchart.co/llms-full.txt — extended with hub text