Free Robots.txt Checker Test & Validate Your Crawl Rules

Indexability Auditor

Instantly extract and interpret `` tags and crawler directives from any webpage to ensure search engines are indexing your content exactly as intended.

3 left / hour

Enter your root domain. Our engine will automatically locate and parse the robots.txt file via our secure API proxy.

Ideal for testing syntax before deploying to your live server.

Bypassing Firewalls...
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CRAWL SCORE
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Bot Agents
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Sitemaps Linked
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Blocks (Disallow)
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Passes (Allow)
Awaiting directives data...
Run a scan to see errors and fixes...
Raw text will be injected here...
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Files Audited
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Bots Analyzed
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Free Scans Left
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Super Features
Bot Topology Engine
Stop reading confusing text files. We parse the syntax and create visual cards for every User-agent, explicitly showing what paths are allowed (green) and blocked (red).
Diagnostic Router
Our engine detects catastrophic SEO errors (like `Disallow: /`) and issues immediate, actionable fixes in the Diagnostic Report tab before you lose your Google rankings.
Hybrid Ingestion
Provide your domain for automatic API fetching, or paste your rules into the Manual Override tab to test syntax safety entirely offline.
API CORS Bypass
When using URL Fetch, our secure backend uses the precise `fetch-txt` API to bypass browser restrictions and retrieve the live file directly from the target server.
Sitemap Extraction
Automatically detects and separates Sitemap declarations from the crawl directives, ensuring search engines can find your XML index easily.
Crawl Score
The dynamic Health Ring evaluates the permissiveness of your file, giving you a quick visual indicator of your site's overall accessibility to search spiders.
How to Use
01

Select Ingestion Method

Choose 'URL Fetch' to scan a live domain (e.g., example.com), or 'Manual Override' to paste and test your own syntax.

02

Initiate the Radar

Click 'Scan Directives'. The engine will parse the file, separate the agents, and build the visual Bot Matrix.

Review Diagnostics

Check the 'Diagnostics' tab for any critical errors or warnings that could harm your search engine indexing.

Why CrawlRadar AI is Superior
Visuals
🖼️

Data as UI

We transformed a plain text file into a beautiful UI. Seeing your rules organized by Bot with clear red/green indicators prevents catastrophic typos.

Safety
🛡️

Pre-Deployment Testing

One typo in a robots.txt file can de-index your entire site. The manual tab allows you to validate your logic safely before making it live.

Performance
⚡

Client-Side State Machine

Our custom JS parser acts as a state machine, intelligently grouping rules per user-agent exactly how Googlebot reads them.

Success