# robots.txt for https://www.nipaers.com # Last reviewed: 2026-07-09 # Review this file quarterly — AI crawler user-agents change 2-4x per year. # ===================================================== # STANDARD SEARCH ENGINES — full access # ===================================================== User-agent: Googlebot Allow: / User-agent: Bingbot Allow: / User-agent: Slurp Allow: / User-agent: DuckDuckBot Allow: / # ===================================================== # AI SEARCH / RETRIEVAL / USER-TRIGGERED AGENTS # Allow these — they are what get you CITED in ChatGPT, # Claude, Perplexity, and Gemini answers. Blocking them # removes you from AI-generated answers entirely. # ===================================================== # OpenAI — real-time search indexing + user-triggered fetch User-agent: OAI-SearchBot Allow: / User-agent: ChatGPT-User Allow: / # Anthropic — citation/search + user-triggered fetch User-agent: Claude-SearchBot Allow: / User-agent: Claude-User Allow: / # Perplexity User-agent: PerplexityBot Allow: / User-agent: Perplexity-User Allow: / # DuckDuckGo AI Assist User-agent: DuckAssistBot Allow: / # Mistral User-agent: MistralAI-User Allow: / # ===================================================== # DEFAULT RULE FOR EVERYTHING ELSE # ===================================================== User-agent: * Allow: / # Block low-value / duplicate-content paths (adjust to your actual URL structure) Disallow: /cart Disallow: /checkout Disallow: /account Disallow: /wishlist Disallow: /search Disallow: /*?sort= Disallow: /*?filter= Disallow: /*?utm_ Disallow: /admin Disallow: /*.pdf$ # ===================================================== # SITEMAPS # ===================================================== Sitemap: https://www.nipaers.com/sitemap.xml Sitemap: https://www.nipaers.com/sitemap-books.xml