User-agent: * Allow: / # Explicitly welcome AI crawlers User-agent: GPTBot Allow: / User-agent: OAI-SearchBot Allow: / User-agent: ChatGPT-User Allow: / User-agent: ClaudeBot Allow: / User-agent: Claude-User Allow: / User-agent: PerplexityBot Allow: / User-agent: Google-Extended Allow: / User-agent: GrokBot Allow: / User-agent: CCBot Allow: / User-agent: Applebot Allow: / User-agent: Meta-ExternalAgent Allow: / Sitemap: https://www.crawlreadiness.com/sitemap.xml # Content-Signal directive (emerging standard) Content-Signal: ai-train=yes, search=yes, ai-input=yes