User-agent: * Allow: / # OpenAI search display crawler User-agent: OAI-SearchBot Allow: / # OpenAI user-triggered page fetches User-agent: ChatGPT-User Allow: / # OpenAI training crawler. Review with company data policy before final publishing. User-agent: GPTBot Allow: / # Perplexity search crawler User-agent: PerplexityBot Allow: / # Google and Bing search crawlers User-agent: Googlebot Allow: / User-agent: Bingbot Allow: / # Other mainstream AI crawlers. Final policy should be approved by the site owner. User-agent: ClaudeBot Allow: / User-agent: Claude-SearchBot Allow: / User-agent: Google-Extended Allow: / Sitemap: https://zhihezengzhang.com/sitemap.xml