Robots.txt Validator
Validate robots.txt syntax and structure
What we check
- Syntax errors and invalid directives
- Security issues (exposed paths)
- Google & Bing standards compliance
Validate your robots.txt
We'll fetch robots.txt from your site
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What is robots.txt?
Robots.txt is a text file that tells search engine crawlers which pages or sections of your website they can or cannot access. It's placed in your website's root directory (e.g., example.com/robots.txt).
What is the correct robots.txt format?
A robots.txt file uses simple directives: User-agent (which bot), Disallow (what to block), Allow (what to permit), and Sitemap (your sitemap URL). Each rule should be on its own line.
Can robots.txt block AI bots?
Yes, you can block AI bots like GPTBot, ClaudeBot, or PerplexityBot using User-agent directives. However, not all AI bots respect robots.txt. Use our AI Bot Checker to see which bots can access your site.
What happens if robots.txt has errors?
Syntax errors in robots.txt can cause crawlers to misinterpret your rules, potentially blocking important pages or allowing access to pages you wanted hidden. Always validate your file before deploying.
Should I block everything in robots.txt?
No, blocking everything prevents search engines from indexing your site. Only block pages you don't want in search results (admin pages, duplicate content, etc.) while allowing access to your main content.
Is this robots.txt validator free?
Yes, this robots.txt validator is completely free. For more SEO tools and AI visibility features, check out our full directory.