diff --git a/rootfs/opt/echoip/html/script.html b/rootfs/opt/echoip/html/script.html
index 4d01150..e4a21b3 100644
--- a/rootfs/opt/echoip/html/script.html
+++ b/rootfs/opt/echoip/html/script.html
@@ -2,7 +2,7 @@
   let host = "{{ .Host }}";
   let jsonObj = "{{ .JSON }}";
   let data = JSON.parse(jsonObj);
-  let tool = "curl -q -LSsf";
+  let tool = "curl -q -LSsf -4";
   let commandBox, widgetBox, compositePath, commandStr;
   let path
   let ipQuery, portQuery