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Robots Txt Tester

Paste robots.txt rules and a URL to simulate whether that URL is allowed or blocked by those rules, before you upload them.

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Result will appear here

Important: this is a simulation of the pasted rules only. It does not fetch a live robots.txt file and it does not crawl anything.

Robots.txt rules can block a page by accident, especially when a broad disallow rule covers a path you wanted indexed. Testing rules before you upload them helps you catch those mistakes early.

This tool simulates the rules you paste. Enter a URL, and it tells you whether the longest matching rule allows or blocks that path, using the standard longest match idea, with Allow winning a tie.

How to Use This Tool

  1. Paste your robots rules: paste the full rules you plan to upload.
  2. Enter a URL or path to test: use a full URL or just the path part.
  3. Click Test URL: read whether the path is allowed or blocked.
  4. Test more paths: test important pages, not just one, before you upload.

Good Practice Tips

  • Test your key pages: a rule that blocks a whole folder may also block a key page inside it.
  • Remember this is a simulation: it reads only the pasted rules. It does not fetch a live file or guarantee how every crawler behaves.
  • Keep rules simple: simple rules are easier to test and harder to get wrong.
  • Test again after upload: open the live file and retest, to confirm the uploaded rules match the tested rules.

Frequently Asked Questions

Does this tool fetch my live robots.txt?

No. It simulates only the rules you paste. It does not fetch a live file and it does not crawl anything.

What wins when rules overlap?

The longest matching rule wins. When an Allow rule and a Disallow rule match the same length, Allow wins in this simulation.

Is a blocked result a guarantee?

No. Robots.txt is a request to crawlers, not a guarantee, and different crawlers may behave differently.

Is my input uploaded to a server?

No. Everything runs in your browser on your own device, so your text never leaves your computer.

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