Free Cloudflare detector · Instant · No signup
Cloudflare Detector
Check whether a domain is behind Cloudflare. Domain Doctor reads the tell-tale headers and nameservers and reports proxy vs DNS-only mode.
VASTROX Hosting, Email, DNS & SSL
Let VASTROX fix everything above for you
You do not have to fix this alone. Our team sets up your SPF, DKIM, DMARC, SSL, DNS and security headers correctly, then hosts you on fast NVMe infrastructure so your domain scores an A and stays there.
- Every failing check fixed and verified
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- Free migration from your current provider
What the Cloudflare Detector checks
Cloudflare sits in front of millions of sites as a CDN and security proxy. Knowing whether a domain is proxied by Cloudflare, or just using its DNS, explains its performance, its security posture, and why its origin IP is hidden.
Domain Doctor detects Cloudflare from response headers (server: cloudflare, cf-ray), the nameservers, and IP ranges, and tells you whether traffic is proxied (orange-cloud) or DNS-only (grey-cloud).
Check your domain in three steps
Common Cloudflare Detector problems
- Origin IP leaking despite Cloudflare proxy
- DNS on Cloudflare but proxy disabled (no protection)
- Mixed proxied and unproxied records
VASTROX Hosting
Proper CDN, caching and origin protection
VASTROX sets up your CDN and locks the origin to the proxy so attackers cannot bypass it.
- CDN and edge caching configured
- Origin firewall locked to the proxy
- DDoS protection in place
Hosting, VPS, business email and game servers. Free migration. Real support.
Frequently asked
Proxied vs DNS-only, what’s the difference?
A proxied (orange-cloud) record routes traffic through Cloudflare for caching and security and hides your origin IP. A DNS-only (grey-cloud) record just resolves to your server with no proxying.
Why detect Cloudflare?
It explains a site’s CDN, security layer and hidden origin, which is useful for migrations, troubleshooting and competitive research.