diff --git a/const.go b/const.go
new file mode 100644
index 0000000..16221cd
--- /dev/null
+++ b/const.go
@@ -0,0 +1,33 @@
+package tdx
+
+var (
+	Hosts = []string{
+		"124.71.187.122",
+		"122.51.120.217",
+		"111.229.247.189",
+		"124.70.199.56",
+		"124.70.176.52",
+		"124.70.133.119",
+		"123.60.84.66",
+		"123.60.73.44",
+		"123.60.70.228",
+		"123.60.186.45",
+		"123.40.164.122",
+		"123.249.15.60",
+		"122.51.232.182",
+		"121.36.81.195",
+		"121.36.54.217",
+		"121.36.225.169",
+		"120.46.186.223",
+		"119.97.185.59",
+		"118.25.98.114",
+		"116.205.183.150",
+		"116.205.171.132",
+		"116.205.163.254",
+		"111.230.186.52",
+		"110.41.4.4",
+		"110.41.2.72",
+		"110.41.154.219",
+		"110.41.147.114",
+	}
+)