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Robots.txt Tester

Validate and test your robots.txt file against Googlebot and other crawlers. Fix syntax errors and ensure your important pages are indexable.

robots.txt Content

No validation issues found!

Test URL Access

Quick Test Examples:

Debug Your Directives

Verify your robots.txt against real-world scenarios. Don't let a typo de-index your entire website.

Syntax Check

Instantly spots invalid directives, typos, and logic errors in your file.

URL Tester

Enter any URL to see if it's "Allowed" or "Blocked" based on your rules.

Bot Simulation

Switch between Googlebot, Bingbot, and others to verify specific blocking rules.

Live Feedback

See exactly which rule triggered the block or allow decision relative to the URL.

How this Robots.txt Tester works

This validation tool analyzes 'robots.txt' files to identify syntax errors, logic conflicts, or reachability issues. Users can paste their file content or enter a URL to fetch it live. The tester simulates search engine crawler behavior against specific paths to verify if they are allowed or blocked. It simulates Googlebot and other major agents, helping webmasters confirm that their access rules are working as intended before deploying changes that could accidentally de-index their entire site.

How to Use

1

Paste robots.txt

Enter your robots.txt content in the editor.

2

Validate

Check for syntax errors and warnings.

3

Test URLs

Test specific URLs against your rules.

Frequently Asked Questions

What is robots.txt?
robots.txt is a file that tells search engine crawlers which paths they are allowed to crawl. It helps you keep low-value or private sections out of crawl paths and guides bots to useful URLs.
What does this Robots.txt Tester do?
It validates robots.txt syntax and lets you test a specific URL against a selected user-agent (like Googlebot) to see whether it is allowed or blocked by your rules.
What do User-agent, Allow, and Disallow mean?
User-agent selects which crawler the rules apply to. Disallow blocks a path, Allow permits a path. Specific rules can override general ones depending on the crawler and the most specific match.
Why is my URL blocked even though I added an Allow rule?
Robots rules can conflict. Make sure the Allow path is more specific than the Disallow path and that it is under the correct User-agent group. Also verify you are testing the correct URL path.
Is this Robots.txt Tester secure?
Yes. It runs 100% client-side, so your robots.txt content and tests stay in your browser and are not uploaded to a server.

Related Tools

The Robots.txt Tester is maintained by CodeItBro. We aim to provide the best free developer tools on the web. If you have feedback or suggestions, please visit our contact page.

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