Robots.txt Analyzer - Check & Validate

Analyze any website's robots.txt file. Validate syntax, check crawl directives, identify blocked resources, and ensure proper search engine configuration.

Frequently Asked Questions

Robots.txt is a text file in the website root that tells search engine crawlers which pages/sections to crawl or avoid. It's a standard protocol for managing crawler access.

No, robots.txt is advisory - well-behaved bots follow it, but malicious bots ignore it. For actual security, use authentication, firewalls, or server configuration.

Basic syntax: 'User-agent: *' (applies to all bots), 'Disallow: /admin/' (blocks /admin/ directory), 'Allow: /' (allows everything). Rules are case-sensitive.

Properly configured robots.txt helps by preventing indexing of duplicate content, admin pages, and low-value pages. Mistakes (like blocking all crawlers) can destroy SEO by making your site invisible.

Block admin panels, user dashboards, duplicate content, staging sites, and thank-you pages. Don't block CSS/JS (Google needs them for rendering). Consider noindex meta tags for sensitive content.

Robots.txt must be at the root: https://example.com/robots.txt. It won't work in subdirectories. Each subdomain needs its own robots.txt if you want different rules.

Frequently Asked Questions

What is robots.txt?
Robots.txt is a text file in the website root that tells search engine crawlers which pages/sections to crawl or avoid. It's a standard protocol for managing crawler access.
Does robots.txt block all access?
No, robots.txt is advisory - well-behaved bots follow it, but malicious bots ignore it. For actual security, use authentication, firewalls, or server configuration.
What's the syntax for robots.txt?
Basic syntax: 'User-agent: *' (applies to all bots), 'Disallow: /admin/' (blocks /admin/ directory), 'Allow: /' (allows everything). Rules are case-sensitive.
Can robots.txt help or hurt SEO?
Properly configured robots.txt helps by preventing indexing of duplicate content, admin pages, and low-value pages. Mistakes (like blocking all crawlers) can destroy SEO by making your site invisible.
Should I block search engines from certain pages?
Block admin panels, user dashboards, duplicate content, staging sites, and thank-you pages. Don't block CSS/JS (Google needs them for rendering). Consider noindex meta tags for sensitive content.
Where should I put robots.txt?
Robots.txt must be at the root: https://example.com/robots.txt. It won't work in subdirectories. Each subdomain needs its own robots.txt if you want different rules.
Last reviewed: Reviewed by the

How this tool works: This tool runs in your browser and on our server in real time. Depending on the tool, results are computed directly from the input you provide or retrieved from live, authoritative data sources at the moment you run a lookup. We do not sell your data, and your lookups are kept private — any history shown here is stored only on your device.