diff --git a/src/server.js b/src/server.js
index 5eb8c6c..513e20a 100644
--- a/src/server.js
+++ b/src/server.js
@@ -225,6 +225,9 @@ function normalizeIp(value) {
 }
 
 function clientIp(req) {
+  const cloudflareIp = normalizeIp(req.get("cf-connecting-ip") || "");
+  if (cloudflareIp) return cloudflareIp;
+
   const forwarded = String(req.get("x-forwarded-for") || "")
     .split(",")
     .map(normalizeIp)