diff --git a/README.md b/README.md
index b5d5aff0..44b96604 100644
--- a/README.md
+++ b/README.md
@@ -317,7 +317,7 @@ You don't have to do anything manually!
 1. DirectAdmin API
 1. KingHost (https://www.kinghost.com.br/)
 1. Zilore (https://zilore.com)
-
+1. Loopia.se API
 
 And: 
 
diff --git a/acme.sh b/acme.sh
index da8e60c9..a5e4b391 100755
--- a/acme.sh
+++ b/acme.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env sh
 
-VER=2.7.8
+VER=2.7.9
 
 PROJECT_NAME="acme.sh"
 
diff --git a/dnsapi/README.md b/dnsapi/README.md
index 045ed0e1..bc1919de 100644
--- a/dnsapi/README.md
+++ b/dnsapi/README.md
@@ -814,6 +814,28 @@ acme.sh --issue --dns dns_zilore -d example.com -d *.example.com
 
 The `Zilore_Key` will be saved in `~/.acme.sh/account.conf` and will be reused when needed.
 
+## 44. Use Loopia.se API
+User must provide login credentials to the Loopia API.
+The user needs the following permissions:
+
+- addSubdomain
+- updateZoneRecord
+- getDomains
+- removeSubdomain
+
+Set the login credentials:
+```
+export LOOPIA_User="user@loopiaapi"
+export LOOPIA_Password="password"
+```
+
+And to issue a cert:
+```
+acme.sh --issue --dns dns_loopia -d example.com -d *.example.com
+```
+
+The username and password will be saved in `~/.acme.sh/account.conf` and will be reused when needed.
+
 # Use custom API
 
 If your API is not supported yet, you can write your own DNS API.
diff --git a/dnsapi/dns_azure.sh b/dnsapi/dns_azure.sh
index e0d9516f..c6893a0c 100644
--- a/dnsapi/dns_azure.sh
+++ b/dnsapi/dns_azure.sh
@@ -76,10 +76,10 @@ dns_azure_add() {
   values="{\"value\":[\"$txtvalue\"]}"
   timestamp="$(_time)"
   if [ "$_code" = "200" ]; then
-    vlist="$(echo "$response" | _egrep_o "\"value\"\s*:\s*\[\s*\"[^\"]*\"\s*]" | cut -d : -f 2 | tr -d "[]\"")"
+    vlist="$(echo "$response" | _egrep_o "\"value\"\\s*:\\s*\\[\\s*\"[^\"]*\"\\s*]" | cut -d : -f 2 | tr -d "[]\"")"
     _debug "existing TXT found"
     _debug "$vlist"
-    existingts="$(echo "$response" | _egrep_o "\"acmetscheck\"\s*:\s*\"[^\"]*\"" | _head_n 1 | cut -d : -f 2 | tr -d "\"")"
+    existingts="$(echo "$response" | _egrep_o "\"acmetscheck\"\\s*:\\s*\"[^\"]*\"" | _head_n 1 | cut -d : -f 2 | tr -d "\"")"
     if [ -z "$existingts" ]; then
       # the record was not created by acme.sh. Copy the exisiting entires
       existingts=$timestamp
@@ -172,7 +172,7 @@ dns_azure_rm() {
   _azure_rest GET "$acmeRecordURI" "" "$accesstoken"
   timestamp="$(_time)"
   if [ "$_code" = "200" ]; then
-    vlist="$(echo "$response" | _egrep_o "\"value\"\s*:\s*\[\s*\"[^\"]*\"\s*]" | cut -d : -f 2 | tr -d "[]\"" | grep -v "$txtvalue")"
+    vlist="$(echo "$response" | _egrep_o "\"value\"\\s*:\\s*\\[\\s*\"[^\"]*\"\\s*]" | cut -d : -f 2 | tr -d "[]\"" | grep -v "$txtvalue")"
     values=""
     comma=""
     for v in $vlist; do
@@ -230,7 +230,7 @@ _azure_rest() {
     fi
     _ret="$?"
     _secure_debug2 "response $response"
-    _code="$(grep "^HTTP" "$HTTP_HEADER" | _tail_n 1 | cut -d " " -f 2 | tr -d "\r\n")"
+    _code="$(grep "^HTTP" "$HTTP_HEADER" | _tail_n 1 | cut -d " " -f 2 | tr -d "\\r\\n")"
     _debug "http response code $_code"
     if [ "$_code" = "401" ]; then
       # we have an invalid access token set to expired
@@ -308,7 +308,7 @@ _get_root() {
   domain=$1
   subscriptionId=$2
   accesstoken=$3
-  i=2
+  i=1
   p=1
 
   ## Ref: https://docs.microsoft.com/en-us/rest/api/dns/zones/list
@@ -328,9 +328,14 @@ _get_root() {
     fi
 
     if _contains "$response" "\"name\":\"$h\"" >/dev/null; then
-      _domain_id=$(echo "$response" | _egrep_o "\{\"id\":\"[^\"]*$h\"" | head -n 1 | cut -d : -f 2 | tr -d \")
+      _domain_id=$(echo "$response" | _egrep_o "\\{\"id\":\"[^\"]*$h\"" | head -n 1 | cut -d : -f 2 | tr -d \")
       if [ "$_domain_id" ]; then
-        _sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p)
+        if [ "$i" = 1 ]; then
+          #create the record at the domain apex (@) if only the domain name was provided as --domain-alias
+          _sub_domain="@"
+        else
+          _sub_domain=$(echo "$domain" | cut -d . -f 1-$p)
+        fi
         _domain=$h
         return 0
       fi
diff --git a/dnsapi/dns_he.sh b/dnsapi/dns_he.sh
index d196fbec..da4a1b81 100755
--- a/dnsapi/dns_he.sh
+++ b/dnsapi/dns_he.sh
@@ -33,8 +33,9 @@ dns_he_add() {
   # Fills in the $_zone_id
   _find_zone "$_full_domain" || return 1
   _debug "Zone id \"$_zone_id\" will be used."
-
-  body="email=${HE_Username}&pass=${HE_Password}"
+  username_encoded="$(printf "%s" "${HE_Username}" | _url_encode)"
+  password_encoded="$(printf "%s" "${HE_Password}" | _url_encode)"
+  body="email=${username_encoded}&pass=${password_encoded}"
   body="$body&account="
   body="$body&menu=edit_zone"
   body="$body&Type=TXT"
@@ -71,7 +72,9 @@ dns_he_rm() {
   _debug "Zone id \"$_zone_id\" will be used."
 
   # Find the record id to clean
-  body="email=${HE_Username}&pass=${HE_Password}"
+  username_encoded="$(printf "%s" "${HE_Username}" | _url_encode)"
+  password_encoded="$(printf "%s" "${HE_Password}" | _url_encode)"
+  body="email=${username_encoded}&pass=${password_encoded}"
   body="$body&hosted_dns_zoneid=$_zone_id"
   body="$body&menu=edit_zone"
   body="$body&hosted_dns_editzone="
@@ -112,9 +115,15 @@ dns_he_rm() {
 
 _find_zone() {
   _domain="$1"
-  body="email=${HE_Username}&pass=${HE_Password}"
+  username_encoded="$(printf "%s" "${HE_Username}" | _url_encode)"
+  password_encoded="$(printf "%s" "${HE_Password}" | _url_encode)"
+  body="email=${username_encoded}&pass=${password_encoded}"
   response="$(_post "$body" "https://dns.he.net/")"
   _debug2 response "$response"
+  if _contains "$response" '>Incorrect<'; then
+    _err "Unable to login to dns.he.net please check username and password"
+    return 1
+  fi
   _table="$(echo "$response" | tr -d "#" | sed "s/<table/#<table/g" | tr -d "\n" | tr "#" "\n" | grep 'id="domains_table"')"
   _debug2 _table "$_table"
   _matches="$(echo "$_table" | sed "s/<tr/#<tr/g" | tr "#" "\n" | grep 'alt="edit"' | tr -d " " | sed "s/<td/#<td/g" | tr "#" "\n" | grep 'hosted_dns_zoneid')"
diff --git a/dnsapi/dns_loopia.sh b/dnsapi/dns_loopia.sh
new file mode 100644
index 00000000..5d761187
--- /dev/null
+++ b/dnsapi/dns_loopia.sh
@@ -0,0 +1,227 @@
+#!/usr/bin/env sh
+
+#
+#LOOPIA_User="username"
+#
+#LOOPIA_Password="password"
+
+LOOPIA_Api="https://api.loopia.se/RPCSERV"
+
+########  Public functions #####################
+
+#Usage: add  _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
+dns_loopia_add() {
+  fulldomain=$1
+  txtvalue=$2
+
+  LOOPIA_User="${LOOPIA_User:-$(_readaccountconf_mutable LOOPIA_User)}"
+  LOOPIA_Password="${LOOPIA_Password:-$(_readaccountconf_mutable LOOPIA_Password)}"
+  if [ -z "$LOOPIA_User" ] || [ -z "$LOOPIA_Password" ]; then
+    LOOPIA_User=""
+    LOOPIA_Password=""
+    _err "You don't specify loopia user and password yet."
+    _err "Please create you key and try again."
+    return 1
+  fi
+
+  #save the api key and email to the account conf file.
+  _saveaccountconf_mutable LOOPIA_User "$LOOPIA_User"
+  _saveaccountconf_mutable LOOPIA_Password "$LOOPIA_Password"
+
+  _debug "First detect the root zone"
+  if ! _get_root "$fulldomain"; then
+    _err "invalid domain"
+    return 1
+  fi
+  _debug _sub_domain "$_sub_domain"
+  _debug _domain "$_domain"
+
+  _info "Adding record"
+
+  _loopia_add_record "$_domain" "$_sub_domain"
+  _loopia_update_record "$_domain" "$_sub_domain" "$txtvalue"
+
+}
+
+dns_loopia_rm() {
+  fulldomain=$1
+  txtvalue=$2
+
+  LOOPIA_User="${LOOPIA_User:-$(_readaccountconf_mutable LOOPIA_User)}"
+  LOOPIA_Password="${LOOPIA_Password:-$(_readaccountconf_mutable LOOPIA_Password)}"
+  if [ -z "$LOOPIA_User" ] || [ -z "$LOOPIA_Password" ]; then
+    LOOPIA_User=""
+    LOOPIA_Password=""
+    _err "You don't specify LOOPIA user and password yet."
+    _err "Please create you key and try again."
+    return 1
+  fi
+
+  #save the api key and email to the account conf file.
+  _saveaccountconf_mutable LOOPIA_User "$LOOPIA_User"
+  _saveaccountconf_mutable LOOPIA_Password "$LOOPIA_Password"
+
+  _debug "First detect the root zone"
+  if ! _get_root "$fulldomain"; then
+    _err "invalid domain"
+    return 1
+  fi
+
+  xml_content=$(printf '<?xml version="1.0" encoding="UTF-8"?>
+  <methodCall>
+    <methodName>removeSubdomain</methodName>
+    <params>
+      <param>
+        <value><string>%s</string></value>
+      </param>
+      <param>
+        <value><string>%s</string></value>
+      </param>
+      <param>
+        <value><string>%s</string></value>
+      </param>
+      <param>
+        <value><string>%s</string></value>
+      </param>
+    </params>
+  </methodCall>' $LOOPIA_User $LOOPIA_Password "$_domain" "$_sub_domain")
+
+  response="$(_post "$xml_content" "$LOOPIA_Api" "" "POST")"
+
+  if ! _contains "$response" "OK"; then
+    _err "Error could not get txt records"
+    return 1
+  fi
+}
+
+####################  Private functions below ##################################
+
+_get_root() {
+  domain=$1
+  _debug "get root"
+
+  domain=$1
+  i=2
+  p=1
+
+  xml_content=$(printf '<?xml version="1.0" encoding="UTF-8"?>
+  <methodCall>
+  <methodName>getDomains</methodName>
+  <params>
+   <param>
+    <value><string>%s</string></value>
+   </param>
+   <param>
+    <value><string>%s</string></value>
+   </param>
+  </params>
+  </methodCall>' $LOOPIA_User $LOOPIA_Password)
+
+  response="$(_post "$xml_content" "$LOOPIA_Api" "" "POST")"
+  while true; do
+    h=$(echo "$domain" | cut -d . -f $i-100)
+    if [ -z "$h" ]; then
+      #not valid
+      return 1
+    fi
+
+    if _contains "$response" "$h"; then
+      _sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p)
+      _domain="$h"
+      return 0
+    fi
+    p=$i
+    i=$(_math "$i" + 1)
+  done
+  return 1
+
+}
+
+_loopia_update_record() {
+  domain=$1
+  sub_domain=$2
+  txtval=$3
+
+  xml_content=$(printf '<?xml version="1.0" encoding="UTF-8"?>
+  <methodCall>
+    <methodName>updateZoneRecord</methodName>
+    <params>
+      <param>
+        <value><string>%s</string></value>
+      </param>
+      <param>
+        <value><string>%s</string></value>
+      </param>
+      <param>
+        <value><string>%s</string></value>
+      </param>
+      <param>
+        <value><string>%s</string></value>
+      </param>
+      <param>
+        <struct>
+          <member>
+            <name>type</name>
+            <value><string>TXT</string></value>
+          </member>
+          <member>
+            <name>priority</name>
+            <value><int>0</int></value>
+          </member>
+          <member>
+            <name>ttl</name>
+            <value><int>60</int></value>
+          </member>
+          <member>
+            <name>rdata</name>
+            <value><string>%s</string></value>
+          </member>
+          <member>
+            <name>record_id</name>
+            <value><int>0</int></value>
+          </member>
+        </struct>
+      </param>
+    </params>
+  </methodCall>' $LOOPIA_User $LOOPIA_Password "$domain" "$sub_domain" "$txtval")
+
+  response="$(_post "$xml_content" "$LOOPIA_Api" "" "POST")"
+
+  if ! _contains "$response" "OK"; then
+    _err "Error"
+    return 1
+  fi
+  return 0
+}
+
+_loopia_add_record() {
+  domain=$1
+  sub_domain=$2
+
+  xml_content=$(printf '<?xml version="1.0" encoding="UTF-8"?>
+  <methodCall>
+    <methodName>addSubdomain</methodName>
+    <params>
+      <param>
+        <value><string>%s</string></value>
+      </param>
+      <param>
+        <value><string>%s</string></value>
+      </param>
+      <param>
+        <value><string>%s</string></value>
+      </param>
+      <param>
+        <value><string>%s</string></value>
+      </param>
+    </params>
+  </methodCall>' $LOOPIA_User $LOOPIA_Password "$domain" "$sub_domain")
+
+  response="$(_post "$xml_content" "$LOOPIA_Api" "" "POST")"
+
+  if ! _contains "$response" "OK"; then
+    _err "Error"
+    return 1
+  fi
+  return 0
+}
diff --git a/dnsapi/dns_pdns.sh b/dnsapi/dns_pdns.sh
index 3d99e103..8f07e8c4 100755
--- a/dnsapi/dns_pdns.sh
+++ b/dnsapi/dns_pdns.sh
@@ -69,15 +69,21 @@ dns_pdns_add() {
 #fulldomain
 dns_pdns_rm() {
   fulldomain=$1
+  txtvalue=$2
+
+  if [ -z "$PDNS_Ttl" ]; then
+    PDNS_Ttl="$DEFAULT_PDNS_TTL"
+  fi
 
   _debug "Detect root zone"
   if ! _get_root "$fulldomain"; then
     _err "invalid domain"
     return 1
   fi
+
   _debug _domain "$_domain"
 
-  if ! rm_record "$_domain" "$fulldomain"; then
+  if ! rm_record "$_domain" "$fulldomain" "$txtvalue"; then
     return 1
   fi
 
@@ -88,9 +94,16 @@ set_record() {
   _info "Adding record"
   root=$1
   full=$2
-  txtvalue=$3
+  new_challenge=$3
 
-  if ! _pdns_rest "PATCH" "/api/v1/servers/$PDNS_ServerId/zones/$root" "{\"rrsets\": [{\"changetype\": \"REPLACE\", \"name\": \"$full.\", \"type\": \"TXT\", \"ttl\": $PDNS_Ttl, \"records\": [{\"name\": \"$full.\", \"type\": \"TXT\", \"content\": \"\\\"$txtvalue\\\"\", \"disabled\": false, \"ttl\": $PDNS_Ttl}]}]}"; then
+  _record_string=""
+  _build_record_string "$new_challenge"
+  _list_existingchallenges
+  for oldchallenge in $_existing_challenges; do
+    _build_record_string "$oldchallenge"
+  done
+
+  if ! _pdns_rest "PATCH" "/api/v1/servers/$PDNS_ServerId/zones/$root" "{\"rrsets\": [{\"changetype\": \"REPLACE\", \"name\": \"$full.\", \"type\": \"TXT\", \"ttl\": $PDNS_Ttl, \"records\": [$_record_string]}]}"; then
     _err "Set txt record error."
     return 1
   fi
@@ -106,14 +119,37 @@ rm_record() {
   _info "Remove record"
   root=$1
   full=$2
+  txtvalue=$3
 
-  if ! _pdns_rest "PATCH" "/api/v1/servers/$PDNS_ServerId/zones/$root" "{\"rrsets\": [{\"changetype\": \"DELETE\", \"name\": \"$full.\", \"type\": \"TXT\"}]}"; then
-    _err "Delete txt record error."
-    return 1
-  fi
+  #Enumerate existing acme challenges
+  _list_existingchallenges
 
-  if ! notify_slaves "$root"; then
-    return 1
+  if _contains "$_existing_challenges" "$txtvalue"; then
+    #Delete all challenges (PowerDNS API does not allow to delete content)
+    if ! _pdns_rest "PATCH" "/api/v1/servers/$PDNS_ServerId/zones/$root" "{\"rrsets\": [{\"changetype\": \"DELETE\", \"name\": \"$full.\", \"type\": \"TXT\"}]}"; then
+      _err "Delete txt record error."
+      return 1
+    fi
+    _record_string=""
+    #If the only existing challenge was the challenge to delete: nothing to do
+    if ! [ "$_existing_challenges" = "$txtvalue" ]; then
+      for oldchallenge in $_existing_challenges; do
+        #Build up the challenges to re-add, ommitting the one what should be deleted
+        if ! [ "$oldchallenge" = "$txtvalue" ]; then
+          _build_record_string "$oldchallenge"
+        fi
+      done
+      #Recreate the existing challenges
+      if ! _pdns_rest "PATCH" "/api/v1/servers/$PDNS_ServerId/zones/$root" "{\"rrsets\": [{\"changetype\": \"REPLACE\", \"name\": \"$full.\", \"type\": \"TXT\", \"ttl\": $PDNS_Ttl, \"records\": [$_record_string]}]}"; then
+        _err "Set txt record error."
+        return 1
+      fi
+    fi
+    if ! notify_slaves "$root"; then
+      return 1
+    fi
+  else
+    _info "Record not found, nothing to remove"
   fi
 
   return 0
@@ -185,3 +221,12 @@ _pdns_rest() {
 
   return 0
 }
+
+_build_record_string() {
+  _record_string="${_record_string:+${_record_string}, }{\"content\": \"\\\"${1}\\\"\", \"disabled\": false}"
+}
+
+_list_existingchallenges() {
+  _pdns_rest "GET" "/api/v1/servers/$PDNS_ServerId/zones/$root"
+  _existing_challenges=$(echo "$response" | _normalizeJson | _egrep_o "\"name\":\"${fulldomain}[^]]*}" | _egrep_o 'content\":\"\\"[^\\]*' | sed -n 's/^content":"\\"//p')
+}