User-Agent: Googlebot
User-Agent: Bingbot
User-Agent: Slurp
User-Agent: DuckDuckBot
User-Agent: Baiduspider
User-Agent: Yandex
User-Agent: Yeti
User-Agent: NaverBot
Allow: /
Disallow: /api/

User-Agent: *
Allow: /
Disallow: /api/
Disallow: /_next/

User-Agent: ChatGPT-User
User-Agent: OAI-SearchBot
User-Agent: PerplexityBot
User-Agent: Perplexity-User
User-Agent: Claude-User
User-Agent: Claude-SearchBot
User-Agent: Google-Extended
Allow: /
Disallow: /api/

User-Agent: GPTBot
User-Agent: CCBot
User-Agent: anthropic-ai
User-Agent: ClaudeBot
User-Agent: Claude-Web
User-Agent: Bytespider
User-Agent: Amazonbot
User-Agent: FacebookBot
Disallow: /

Host: https://www.brian-yang.com
Sitemap: https://www.brian-yang.com/sitemap.xml