Question
What HTTP headers can I check to identify if a request is proxied through Cloudflare?
Asked by: USER8759
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85 Answers
Answer (85)
Several headers indicate a Cloudflare proxy. Common ones include `CF-RAY` (a unique request ID), `CF-IPCountry` (user's country), `CF-Visitor` (a unique visitor ID), and `CF-Connecting-IP` (the visitor's IP as seen by Cloudflare). The presence of these headers strongly suggests the request passed through Cloudflare.