# Search engine crawlers User-agent: * Allow: / # AI / LLM crawlers — explicitly welcome. A curated site overview for # language models is available at https://unlimited-systems.vercel.app/llms.txt # and a page written specifically for agents — canonical facts, quotable # answers, and citation guidance — is at # https://unlimited-systems.vercel.app/for-ai-agents 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: anthropic-ai Allow: / User-agent: PerplexityBot Allow: / User-agent: Google-Extended Allow: / User-agent: Applebot-Extended Allow: / User-agent: cohere-ai Allow: / User-agent: Bytespider Allow: / Sitemap: https://unlimited-systems.vercel.app/sitemap-index.xml