diff --git a/dnsapi/dns_world4you.sh b/dnsapi/dns_world4you.sh
index bcf256ff..a0a83c37 100644
--- a/dnsapi/dns_world4you.sh
+++ b/dnsapi/dns_world4you.sh
@@ -12,7 +12,7 @@ RECORD=''
 
 # Usage: dns_world4you_add <fqdn> <value>
 dns_world4you_add() {
-  fqdn="$1"
+  fqdn=$(echo "$1" | _lower_case)
   value="$2"
   _info "Using world4you to add record"
   _debug fulldomain "$fqdn"
@@ -49,12 +49,12 @@ dns_world4you_add() {
   ret=$(_post "$body" "$WORLD4YOU_API/$paketnr/dns" '' POST 'application/x-www-form-urlencoded')
   _resethttp
 
-  if _contains "$(_head_n 3 <"$HTTP_HEADER")" '302'; then
+  if _contains "$(_head_n 1 <"$HTTP_HEADER")" '302'; then
     res=$(_get "$WORLD4YOU_API/$paketnr/dns")
     if _contains "$res" "successfully"; then
       return 0
     else
-      msg=$(echo "$res" | grep -A 15 'data-type="danger"' | grep "<h3[^>]*>[^<]" | sed 's/<[^>]*>\|^\s*//g')
+      msg=$(echo "$res" | grep -A 15 'data-type="danger"' | grep "<h3[^>]*>[^<]" | sed 's/<[^>]*>//g' | sed 's/^\s*//g')
       if [ "$msg" = '' ]; then
         _err "Unable to add record: Unknown error"
         echo "$ret" >'error-01.html'
@@ -66,15 +66,15 @@ dns_world4you_add() {
       return 1
     fi
   else
-    _err "$(_head_n 3 <"$HTTP_HEADER")"
-    _err "View $HTTP_HEADER for debugging"
+    msg=$(echo "$ret" | grep '"form-error-message"' | sed 's/^.*<div class="form-error-message">\([^<]*\)<\/div>.*$/\1/')
+    _err "Unable to add record: my.world4you.com: $msg"
     return 1
   fi
 }
 
 # Usage: dns_world4you_rm <fqdn> <value>
 dns_world4you_rm() {
-  fqdn="$1"
+  fqdn=$(echo "$1" | _lower_case)
   value="$2"
   _info "Using world4you to remove record"
   _debug fulldomain "$fqdn"
@@ -113,12 +113,12 @@ dns_world4you_rm() {
   ret=$(_post "$body" "$WORLD4YOU_API/$paketnr/dns/record/delete" '' POST 'application/x-www-form-urlencoded')
   _resethttp
 
-  if _contains "$(_head_n 3 <"$HTTP_HEADER")" '302'; then
+  if _contains "$(_head_n 1 <"$HTTP_HEADER")" '302'; then
     res=$(_get "$WORLD4YOU_API/$paketnr/dns")
     if _contains "$res" "successfully"; then
       return 0
     else
-      msg=$(echo "$res" | grep -A 15 'data-type="danger"' | grep "<h3[^>]*>[^<]" | sed 's/<[^>]*>\|^\s*//g')
+      msg=$(echo "$res" | grep -A 15 'data-type="danger"' | grep "<h3[^>]*>[^<]" | sed 's/<[^>]*>//g' | sed 's/^\s*//g')
       if [ "$msg" = '' ]; then
         _err "Unable to remove record: Unknown error"
         echo "$ret" >'error-01.html'
@@ -130,8 +130,8 @@ dns_world4you_rm() {
       return 1
     fi
   else
-    _err "$(_head_n 3 <"$HTTP_HEADER")"
-    _err "View $HTTP_HEADER for debugging"
+    msg=$(echo "$ret" | grep "form-error-message" | sed 's/^.*<div class="form-error-message">\([^<]*\)<\/div>.*$/\1/')
+    _err "Unable to remove record: my.world4you.com: $msg"
     return 1
   fi
 }
@@ -155,29 +155,42 @@ _login() {
   _saveaccountconf_mutable WORLD4YOU_USERNAME "$WORLD4YOU_USERNAME"
   _saveaccountconf_mutable WORLD4YOU_PASSWORD "$WORLD4YOU_PASSWORD"
 
+  _resethttp
+  export ACME_HTTP_NO_REDIRECTS=1
+  page=$(_get "$WORLD4YOU_API/login")
+  _resethttp
+
+  if _contains "$(_head_n 1 <"$HTTP_HEADER")" '302'; then
+    _info "Already logged in"
+    _parse_sessid
+    return 0
+  fi
+
   _info "Logging in..."
 
   username="$WORLD4YOU_USERNAME"
   password="$WORLD4YOU_PASSWORD"
-  csrf_token=$(_get "$WORLD4YOU_API/login" | grep '_csrf_token' | sed 's/^.*<input[^>]*value=\"\([^"]*\)\".*$/\1/')
-  sessid=$(grep 'W4YSESSID' <"$HTTP_HEADER" | sed 's/^.*W4YSESSID=\([^;]*\);.*$/\1/')
+  csrf_token=$(echo "$page" | grep '_csrf_token' | sed 's/^.*<input[^>]*value=\"\([^"]*\)\".*$/\1/')
+  _parse_sessid
 
   export _H1="Cookie: W4YSESSID=$sessid"
   export _H2="X-Requested-With: XMLHttpRequest"
   body="_username=$username&_password=$password&_csrf_token=$csrf_token"
   ret=$(_post "$body" "$WORLD4YOU_API/login" '' POST 'application/x-www-form-urlencoded')
   unset _H2
+
   _debug ret "$ret"
   if _contains "$ret" "\"success\":true"; then
     _info "Successfully logged in"
-    sessid=$(grep 'W4YSESSID' <"$HTTP_HEADER" | sed 's/^.*W4YSESSID=\([^;]*\);.*$/\1/')
+    _parse_sessid
   else
-    _err "Unable to log in: $(echo "$ret" | sed 's/^.*"message":"\([^\"]*\)".*$/\1/')"
+    msg=$(echo "$ret" | sed 's/^.*"message":"\([^\"]*\)".*$/\1/')
+    _err "Unable to log in: my.world4you.com: $msg"
     return 1
   fi
 }
 
-# Usage _get_paketnr <fqdn> <form>
+# Usage: _get_paketnr <fqdn> <form>
 _get_paketnr() {
   fqdn="$1"
   form="$2"
@@ -200,3 +213,8 @@ _get_paketnr() {
   PAKETNR=$(echo "$form" | grep "data-textfilter=\".* $domain " | _tail_n 1 | sed "s|.*$WORLD4YOU_API/\\([0-9]*\\)/.*|\\1|")
   return 0
 }
+
+# Usage: _parse_sessid
+_parse_sessid() {
+  sessid=$(grep 'W4YSESSID' <"$HTTP_HEADER" | _tail_n 1 | sed 's/^.*W4YSESSID=\([^;]*\);.*$/\1/')
+}