diff --git a/ipv64-dns-challenge.sh b/ipv64-dns-challenge.sh
index c729e79..47902de 100755
--- a/ipv64-dns-challenge.sh
+++ b/ipv64-dns-challenge.sh
@@ -34,22 +34,27 @@ set -e
 case "$1" in
   "present")
     echo  "Present"
+    full_domain=$2
+    domain=$(echo $full_domain | rev | cut -d . -f -3 |  rev)
+    praefix=${full_domain%"$domain"}
+    praefix=${praefix%"."}
     auth_h="Authorization: Bearer $apitoken"
-    domain_pl="add_record=$2"
-    praefix_pl="praefix="
+    domain_pl="add_record=$domain"
+    praefix_pl="praefix=$praefix"
     type_pl="type=TXT"
     content_pl="content=$3"
-#curl -X POST https://ipv64.net/api.php -H "$authorization" -d "add_record=czechman.ipv64.de" -d "type=TXT" -d "content=test"
-#-d "del_record=czechman.ipv64.de" -d "praefix=_acme" -d "type=TXT" -d "content=drei" -H "Authorization: Bearer yS3de7wD2EJHtUAxivRW8lkufcg6Y0pq" 
     echo 'curl -s -X POST -d "'"$domain_pl"'" -d "'"$praefix_pl"'" -d "'"$type_pl"'" -d "'"$content_pl"'" -H "'"\$auth_h"'" https://ipv64.net/api'
     ;;
   "cleanup")
+    full_domain=$2
+    domain=$(echo $full_domain | rev | cut -d . -f -3 |  rev)
+    praefix=${full_domain%"$domain"}
+    praefix=${praefix%"."}
     auth_h="Authorization: Bearer $apitoken"
-    domain_pl="del_record=$2"
-    praefix_pl="praefix="
+    domain_pl="del_record=$domain"
+    praefix_pl="praefix=$praefix"
     type_pl="type=TXT"
     content_pl="content=$3"
-#curl -X POST https://ipv64.net/api.php -H "$authorization" -d "add_record=czechman.ipv64.de" -d "type=TXT" -d "content=test"
     echo 'curl -s -X DELETE -d "'"$domain_pl"'" -d "'"$praefix_pl"'" -d "'"$type_pl"'" -d "'"$content_pl"'" -H "'"\$auth_h"'" https://ipv64.net/api'
     ;;
   *)