diff --git a/ip/resolver/manager.go b/ip/resolver/manager.go
index 46dd41c..dbaccbc 100644
--- a/ip/resolver/manager.go
+++ b/ip/resolver/manager.go
@@ -1,8 +1,6 @@
 package lookup
 
 import (
-	"errors"
-	"net"
 	"net/http"
 
 	"dnsupdater/ip/resolver/basic_http"
@@ -24,18 +22,6 @@ func Get(name string) Service {
 	return nil
 }
 
-func Lookup() (net.IP, error) {
-	for _, service := range services {
-		ip, err := service.Lookup()
-		if err != nil {
-			continue
-		}
-		return ip, err
-	}
-
-	return nil, errors.New("failed to get ip")
-}
-
 func init() {
 	Provide(jsonip.New())