ToolToUse

Website / SEO Tools

robots.txt Validator

Check robots.txt for syntax errors and risky rules.

Checks syntax only — it does not fetch your site or test specific URLs against the rules.

Website / SEO Tools

robots.txt Validator

Local only
Everything stays in your browser

Your text is processed on your device — nothing is uploaded to a server.

How it works

Flags lines that aren't field: value, rules before any User-agent, relative Sitemap URLs, unknown directives and “Disallow: /”. Checks syntax only — it does not fetch your site or test specific URLs against the rules.

Good to know

Frequently asked questions

How do I use it?

Enter your robots.txt and press “Validate”. Check the result, then copy or download it.

How does it work?

Flags lines that aren't field: value, rules before any User-agent, relative Sitemap URLs, unknown directives and “Disallow: /”.

Are there limitations?

Checks syntax only — it does not fetch your site or test specific URLs against the rules.

Is my data uploaded?

No. Everything is processed in your browser and nothing is sent to a server. No account is needed.

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