diff --git a/server.go b/server.go
index d2b2bb0..47abf85 100644
--- a/server.go
+++ b/server.go
@@ -143,12 +143,14 @@ func (s *server) handleRequest(ctx *fasthttp.RequestCtx) {
 		s.handleError(ctx, http.StatusNotAcceptable, fmt.Errorf("Server: Handshake err"))
 		return
 	}
+	logging.Logger().Debug(fmt.Sprintf("Server: Client is Handshake."))
 
 	s.upgrader.Upgrade(ctx, responseHeader, func(conn *websocket.Conn, err error) {
 		if err != nil {
 			s.handleError(ctx, fasthttp.StatusInternalServerError, err)
 			return
 		}
+		logging.Logger().Debug(fmt.Sprintf("Server: Client is Upgrade."))
 
 		socketCTX := socketHandler.SocketContext(s.ctx)
 		soc := newSocket(socketHandler, socketCTX, conn, socketID)