diff --git a/_worker.js b/_worker.js
index 5ff5896..55a9a12 100644
--- a/_worker.js
+++ b/_worker.js
@@ -1,5 +1,6 @@
 import handler from "./common";
 
 export default {
-  fetch: async (request, env) => handler(request, env.DNS, env.API),
+  fetch: async (request, env) =>
+    handler(request, env.DNS, env.API, request.headers.get("cf-connecting-ip")),
 };
diff --git a/common.js b/common.js
index 393d956..e166ae7 100644
--- a/common.js
+++ b/common.js
@@ -1,11 +1,16 @@
 export default async function handler(
   request,
   dns = "https://dns.google/dns-query",
-  api = "https://dns.google/resolve"
+  api = "https://dns.google/resolve",
+  rawIP
 ) {
   const { method, headers, url } = request;
   const { search, searchParams, pathname } = new URL(url);
-  const ip = headers.get("x-forwarded-for");
+
+  const ip =
+    rawIP ||
+    headers.get("x-forwarded-for").split(",")[0].trim() ||
+    headers.get("x-real-ip");
 
   // Anti-GFW
   if (