diff --git a/src/index.js b/src/index.js
index 785a41aa..552569eb 100644
--- a/src/index.js
+++ b/src/index.js
@@ -4,7 +4,7 @@ addEventListener("fetch", (event) => {
 });
 
 const dockerHub = "https://registry-1.docker.io";
-
+const CUSTOM_DOMAIN = 'liulinlin.uk'
 const routes = {
   // production
   ["docker." + CUSTOM_DOMAIN]: dockerHub,