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robots.txt Validator

Free — No sign-upRuns in browser

Validate your robots.txt file for syntax errors, conflicting rules, and common mistakes. See which paths are blocked or allowed per user-agent. Checks for missing sitemap directive and other SEO issues.

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How to use robots.txt Validator

Validate your robots.txt file for syntax errors, conflicting rules, and common mistakes. See which paths are blocked or allowed per user-agent. Checks for missing sitemap directive and other SEO issues.

This tool runs entirely in your browser — your data never leaves your device. No account required, no daily limits, no API calls. Use it as many times as you need.

Why use robots.txt Validator?

  • Instant results — no waiting for API responses
  • 100% private — your data stays in your browser
  • No sign-up, no email, no credit card
  • Works on mobile and desktop