What is Cloudflare Security Scanner?
Direct Answer: Cloudflare Radar URL Scanner scans and analyzes URLs for security threats, phishing, and malware on behalf of Cloudflare's security services.
User-Agent Identification
The following user-agent strings identify Cloudflare Security Scanner in your live traffic data:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko)
robots.txt Rules for Cloudflare Security Scanner
Respects robots.txt: No
This bot does not commit to following robots.txt
Cloudflare Security Scanner does not officially follow robots.txt directives. The only reliable way to control access is through server-side blocking (IP filtering, user-agent rules in your web server config) combined with log monitoring to verify effectiveness.
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Why track Cloudflare Security Scanner traffic?
Identify and classify unknown crawler activity. Cloudflare Security Scanner may appear in your live traffic data with varying frequency. Tracking its behavior helps you decide whether to allow, throttle, or block it based on actual data.
Protect your crawl budget. Every bot request consumes server resources. Understanding what Cloudflare Security Scanner crawls helps you prioritize the crawlers that matter.
Log Verification
To verify Cloudflare Security Scanner traffic in your live traffic data:
- Search access logs for the user-agent strings listed above
- Check if the IP addresses match documented ranges (if provided by Cloudflare)
- Verify the crawl pattern matches documented behavior
- Use reverse DNS lookup for additional verification if available
Note: Observed behavior in production environments may differ from official documentation. Live traffic monitoring provides the only reliable verification of actual bot behavior.
Official Documentation
View Official Cloudflare Security Scanner Documentation →
Information sourced from official documentation. Content generated with AI assistance.