robots.txt Tester
Related tools
Validators and utilities that complement robots.txt Tester — same session, no sign-up.
Fetches <site>/robots.txt via our server. Content is loaded into the editor below; then run Validate.
Test paths (one per line)
Click "Validate" to check your code
Test robots.txt rules: paste content or fetch by site URL. Test paths against user-agent.
About this tool
Validates syntax (User-agent, Disallow, Allow, Sitemap) and lets you test whether specific paths are allowed or blocked for a given user-agent. Paste robots.txt or enter a site URL to fetch /robots.txt from our server.
How to use this tool
- Paste your sample in the input (or fetch from URL if this tool supports it).
- Run the main action on the page to execute robots.txt Tester.
- Read the result, fix the source data or config, and re-run if needed.
What this check helps you catch
- Test robots.txt rules: paste content or fetch by site URL. Test paths against user-agent.
- Limits called out in the description (what this tool does not verify — e.g. live network reachability, issuer databases, or strict schema contracts unless stated).
- Structural or syntax mistakes that would break parsers, serializers, or the next step in your workflow.
FAQ
- What does robots.txt Tester do?
- Test robots.txt rules: paste content or fetch by site URL. Test paths against user-agent. Use the form above, then see “How to use” and “What this check helps you catch” for behavior detail.
- Is this a substitute for server-side validation?
- No. Use it for manual checks and triage; production systems should still validate and authorize on the server.
- Where does processing happen?
- Most validators here run in your browser. If a tool calls an API, that is stated on the page. See the site privacy policy for data handling.