diff --git a/dnsapi/dns_lua.sh b/dnsapi/dns_lua.sh
index 47f4497..9506929 100755
--- a/dnsapi/dns_lua.sh
+++ b/dnsapi/dns_lua.sh
@@ -46,12 +46,12 @@ dns_lua_add() {
     return 1
   fi
 
-  count=$(printf "%s\n" "$response" | _egrep_o "\"name\":\"$fulldomain\"" | wc -l)
+  count=$(printf "%s\n" "$response" | _egrep_o "\"name\":\"$fulldomain\"" | wc -l | tr -s " ")
   _debug count "$count"
   if [ "$count" = "0" ]; then
     _info "Adding record"
     if _LUA_rest POST "zones/$_domain_id/records" "{\"type\":\"TXT\",\"name\":\"$fulldomain.\",\"content\":\"$txtvalue\",\"ttl\":120}"; then
-      if printf -- "%s" "$response" | grep "$fulldomain" >/dev/null; then
+      if _contains "$response" "$fulldomain"; then
         _info "Added"
         #todo: check if the record takes effect
         return 0
@@ -99,6 +99,7 @@ _get_root() {
   fi
   while true; do
     h=$(printf "%s" "$domain" | cut -d . -f $i-100)
+    _debug h "$h"
     if [ -z "$h" ]; then
       #not valid
       return 1
@@ -106,6 +107,7 @@ _get_root() {
 
     if _contains "$response" "\"name\":\"$h\""; then
       _domain_id=$(printf "%s\n" "$response" | _egrep_o "\"id\":[^,]*,\"name\":\"$h\"" | cut -d : -f 2 | cut -d , -f 1)
+      _debug _domain_id "$_domain_id"
       if [ "$_domain_id" ]; then
         _sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p)
         _domain="$h"