Inspect user-agent crawl directives, test URL paths for Googlebot access, and validate sitemap links.
Execution runs 100% locally inside the browser sandbox using HTML5 Canvas, Web Cryptography Subtle API, and Web Workers. Zero egress.
Zero network latency. Operates completely offline with zero dependencies on third-party backend servers or cloud services.
Built according to official RFC specifications, cryptographic test vectors, and enterprise-grade data transformation standards.
Enter your robots.txt content or choose a standard Next.js template.
Pick Googlebot, Bingbot, or GPTBot to simulate.
Input a path (e.g. /api/users) to immediately test if crawling is Allowed or Blocked.
Robots.txt instructs web search engine crawlers which URLs and directories on your website they are permitted or forbidden to access.
No, robots.txt prevents crawling, but if a page is linked externally it can still be indexed. Sensitive pages must use noindex meta tags or authentication.
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