Robots.txt Tester

Validate web crawler access rules and test specific URI paths against user-agent directives securely in your browser.

Access Status

Evaluation message will appear here.

🔒 Client-Side Execution: All crawler rule matching happens instantly in your browser sandbox.

How to Validate Crawler Rules Securely

Managing search engine bot access via `robots.txt` is critical for preventing unauthorized indexing of staging directories, private user areas, or admin portals. Syntax errors can inadvertently block major crawlers entirely. Our browser-based Robots.txt Tester evaluates your rule logic locally.

Explore other SEO utilities like our Sitemap Checker or Redirect Checker.

Core Features

User-Agent Rule Matching

Test wildcard and specific bot directives against custom URI paths.

Instant Local Evaluation

Debug crawler logic immediately without uploading files to remote servers.

100% Client-Side Privacy

Data is processed entirely within local browser memory with zero tracking or logging.

Frequently Asked Questions

Are my robots.txt rules uploaded to any external server?

No. FreeToolGo operates entirely client-side, ensuring your configuration remains secure on your device.

How does the matcher prioritize Allow and Disallow rules?

The parser follows standard crawler precedence, evaluating the most specific matching rule path length.

Can I test specific AI scraper bots like GPTBot?

Yes, you can select custom user-agents from the dropdown menu to verify specific crawler permissions.

Do I need to install any software or plugins?

No downloads or extensions are required. The tool runs directly inside any modern web browser.

Is this tool completely free?

Yes, all utilities on FreeToolGo are 100% free forever for personal and commercial workflows.

Platform Disclaimer: FreeToolGo is provided as-is for managing your SEO workflows. Users must ensure compliance with search engine crawling standards.