Cloudflare Checker — Edge Protection & Security Headers
Detect Cloudflare, check cache status and 6 security headers in seconds
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Is your website properly protected?
Cloudflare is the world's most popular CDN and edge security network — blocking DDoS, malicious bots, invalid clicks and encrypting all connections before traffic reaches your origin server. But Cloudflare alone is not enough: missing security headers like HSTS, CSP or X-Frame-Options leave your site vulnerable to XSS and clickjacking. This tool checks both in a single scan.
A website not behind Cloudflare is exposed to 100% raw internet traffic — DDoS layer 3/4, brute-force, bot scrapers and invalid ad clicks directly hitting your origin. Cloudflare blocks an average of 70–80 billion threats per day at the edge, significantly reducing origin server load and improving global response speed. But Cloudflare at the edge does not control HTTP security headers — these are the responsibility of your web server or application. Missing HSTS enables SSL stripping attacks. Missing CSP is an XSS vulnerability. Missing X-Frame-Options is a clickjacking risk on ad campaigns. ClickSentinel combined with Cloudflare protects 2 layers: edge blocks raw threats, ClickSentinel analyzes traffic quality that passes through the edge.
- Detect Cloudflare via CF-Ray header and "Server: cloudflare" — instant result
- Rate protection level: High / Medium / None + real cache status
- Verify all 6 security headers: HSTS, X-Frame-Options, CSP, X-Content-Type, Referrer-Policy, Permissions-Policy
How to use in 3 steps
- 1Enter any URL on the domain you want to check (homepage or landing page).
- 2Click "Check now" — the tool sends an HTTP request and analyzes response headers.
- 3See instantly: Cloudflare status, protection level, cache + full list of present/missing security headers.