Input is parsed without making a network request; components and risky assumptions are separated.
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Data & developer
Robots.txt Builder & Auditor
Audits user-agent groups, Allow, Disallow, Sitemap, and Crawl-delay lines locally and flags root blocks, relative sitemaps, and unknown directives. Actual crawler behavior and indexing outcomes are not guaranteed.
✓ Free✓ No account✓ In-browser
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What does this tool do?
Parse robots.txt rules and find conflicts or critical crawl blocks.
APPLICATION AND DECISION GUIDE
Robots.txt Builder & Auditor: method and usage
Audits user-agent groups, Allow, Disallow, Sitemap, and Crawl-delay lines locally and flags root blocks, relative sitemaps, and unknown directives. Actual crawler behavior and indexing outcomes are not guaranteed.
the URL, HTTP headers, cURL command, API definition, or web configuration requested by the tool Confirm the shape first with a small example containing no personal data.
normalized web configuration, a component inventory, and actionable review notes
Practical steps
- Paste the current robots.txt or load the example.
- Run structural auditing and inspect agent groups.
- Verify real access on the live domain with Search Console URL Inspection.
comparison with the current standard and real server behavior in an authorized test environment
Verify schema, encoding, and data-loss assumptions in the target system.
Suitable use cases
- Pre-launch crawl checks
- Inventorying AI-bot rules
- Validating sitemap declarations
LEARN THE WORKFLOW
Guides for this tool
Technical SEO Workflow: Slugs, Robots.txt, Hreflang, FAQ, and UTM
Combine crawl access, canonicals, language clusters, visible structured data, and campaign URLs in one auditable process.
Read guide →Safe Indexing Releases with Sitemaps, Robots Meta, and Hreflang
Build a measurable release gate without confusing URL discovery, canonical choice, crawl permission, and locale matching.
Read guide →ABOUT THIS TOOL
Frequently asked questions
What input does Robots.txt Builder & Auditor accept?+
the URL, HTTP headers, cURL command, API definition, or web configuration requested by the tool Paste the current robots.txt or load the example.
What does Robots.txt Builder & Auditor return?+
normalized web configuration, a component inventory, and actionable review notes Input is parsed without making a network request; components and risky assumptions are separated.
How should I validate Robots.txt Builder & Auditor output?+
comparison with the current standard and real server behavior in an authorized test environment
Does Robots.txt Builder & Auditor send or store input on a server?+
Tool input is processed in the active tab. Saving to the Workstation or transferring to another tool is a separate choice. Consider browser extensions and shared devices separately; the privacy page explains advertising and network connections.