User-agent: * Allow: / # OpenAI User-agent: GPTBot Allow: / User-agent: OAI-SearchBot Allow: / # Anthropic User-agent: ClaudeBot Allow: / # Perplexity User-agent: PerplexityBot Allow: / # Google User-agent: Googlebot Allow: / User-agent: Google-Extended Allow: / # Bing / Microsoft User-agent: Bingbot Allow: / # Sitemap Sitemap: https://indexnano.com/sitemap.xml