diff --git a/README.md b/README.md
index d0d526d..fae0bbf 100644
--- a/README.md
+++ b/README.md
@@ -359,6 +359,8 @@ You don't have to do anything manually!
 1. Online.net API (https://online.net/)
 1. MyDevil.net (https://www.mydevil.net/)
 1. Core-Networks.de (https://core-networks.de)
+1. NederHost API (https://www.nederhost.nl/)
+
 And:
 
 **lexicon DNS API: https://github.com/Neilpang/acme.sh/wiki/How-to-use-lexicon-dns-api
diff --git a/acme.sh b/acme.sh
index a31cf08..b3ccf9e 100755
--- a/acme.sh
+++ b/acme.sh
@@ -19,8 +19,8 @@ LETSENCRYPT_STAGING_CA_V1="https://acme-staging.api.letsencrypt.org/directory"
 LETSENCRYPT_CA_V2="https://acme-v02.api.letsencrypt.org/directory"
 LETSENCRYPT_STAGING_CA_V2="https://acme-staging-v02.api.letsencrypt.org/directory"
 
-DEFAULT_CA=$LETSENCRYPT_CA_V1
-DEFAULT_STAGING_CA=$LETSENCRYPT_STAGING_CA_V1
+DEFAULT_CA=$LETSENCRYPT_CA_V2
+DEFAULT_STAGING_CA=$LETSENCRYPT_STAGING_CA_V2
 
 DEFAULT_USER_AGENT="$PROJECT_NAME/$VER ($PROJECT)"
 DEFAULT_ACCOUNT_EMAIL=""
@@ -3665,8 +3665,12 @@ issue() {
     _cleardomainconf "Le_ChallengeAlias"
   fi
 
-  Le_API="$ACME_DIRECTORY"
-  _savedomainconf "Le_API" "$Le_API"
+  if [ "$ACME_DIRECTORY" != "$DEFAULT_CA" ]; then
+    Le_API="$ACME_DIRECTORY"
+    _savedomainconf "Le_API" "$Le_API"
+  else
+    _cleardomainconf Le_API
+  fi
 
   if [ "$_alt_domains" = "$NO_VALUE" ]; then
     _alt_domains=""
@@ -4500,6 +4504,16 @@ renew() {
 
   . "$DOMAIN_CONF"
   _debug Le_API "$Le_API"
+
+  if [ "$Le_API" = "$LETSENCRYPT_CA_V1" ]; then
+    _cleardomainconf Le_API
+    Le_API="$DEFAULT_CA"
+  fi
+  if [ "$Le_API" = "$LETSENCRYPT_STAGING_CA_V1" ]; then
+    _cleardomainconf Le_API
+    Le_API="$DEFAULT_STAGING_CA"
+  fi
+
   if [ "$Le_API" ]; then
     if [ "$_OLD_CA_HOST" = "$Le_API" ]; then
       export Le_API="$DEFAULT_CA"
diff --git a/dnsapi/README.md b/dnsapi/README.md
index 33d724c..7ef1c30 100644
--- a/dnsapi/README.md
+++ b/dnsapi/README.md
@@ -1296,8 +1296,19 @@ acme.sh --issue --dns dns_cn -d example.com -d www.example.com
 
 The `CN_User` and `CN_Password` will be saved in `~/.acme.sh/account.conf` and will be reused when needed.
 
+## 68. Use NederHost API
 
+Create an API token in Mijn NederHost.
 
+Set your API key:
+```
+export NederHost_Key='xxx'
+```
+
+To issue a certificate run:
+```
+acme.sh --issue --dns dns_nederhost -d example.com -d *.example.com
+```
 
 # Use custom API
 
diff --git a/dnsapi/dns_nederhost.sh b/dnsapi/dns_nederhost.sh
new file mode 100755
index 0000000..0954ab6
--- /dev/null
+++ b/dnsapi/dns_nederhost.sh
@@ -0,0 +1,131 @@
+#!/usr/bin/env sh
+
+#NederHost_Key="sdfgikogfdfghjklkjhgfcdcfghjk"
+
+NederHost_Api="https://api.nederhost.nl/dns/v1"
+
+########  Public functions #####################
+
+#Usage: add  _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
+dns_nederhost_add() {
+  fulldomain=$1
+  txtvalue=$2
+
+  NederHost_Key="${NederHost_Key:-$(_readaccountconf_mutable NederHost_Key)}"
+  if [ -z "$NederHost_Key" ]; then
+    NederHost_Key=""
+    _err "You didn't specify a NederHost api key."
+    _err "You can get yours from https://www.nederhost.nl/mijn_nederhost"
+    return 1
+  fi
+
+  #save the api key and email to the account conf file.
+  _saveaccountconf_mutable NederHost_Key "$NederHost_Key"
+
+  _debug "First detect the root zone"
+  if ! _get_root "$fulldomain"; then
+    _err "invalid domain"
+    return 1
+  fi
+  _debug _sub_domain "$_sub_domain"
+  _debug _domain "$_domain"
+
+  _info "Adding record"
+  if _nederhost_rest PATCH "zones/$_domain/records/$fulldomain/TXT" "[{\"content\":\"$txtvalue\",\"ttl\":60}]"; then
+    if _contains "$response" "$fulldomain"; then
+      _info "Added, OK"
+      return 0
+    else
+      _err "Add txt record error."
+      return 1
+    fi
+  fi
+  _err "Add txt record error."
+  return 1
+
+}
+
+#fulldomain txtvalue
+dns_nederhost_rm() {
+  fulldomain=$1
+  txtvalue=$2
+
+  NederHost_Key="${NederHost_Key:-$(_readaccountconf_mutable NederHost_Key)}"
+  if [ -z "$NederHost_Key" ]; then
+    NederHost_Key=""
+    _err "You didn't specify a NederHost api key."
+    _err "You can get yours from https://www.nederhost.nl/mijn_nederhost"
+    return 1
+  fi
+
+  _debug "First detect the root zone"
+  if ! _get_root "$fulldomain"; then
+    _err "invalid domain"
+    return 1
+  fi
+
+  _debug _sub_domain "$_sub_domain"
+  _debug _domain "$_domain"
+
+  _debug "Removing txt record"
+  _nederhost_rest DELETE "zones/${_domain}/records/$fulldomain/TXT?content=$txtvalue"
+
+}
+
+####################  Private functions below ##################################
+#_acme-challenge.www.domain.com
+#returns
+# _sub_domain=_acme-challenge.www
+# _domain=domain.com
+_get_root() {
+  domain=$1
+  i=2
+  p=1
+  while true; do
+    _domain=$(printf "%s" "$domain" | cut -d . -f $i-100)
+    _sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p)
+    _debug _domain "$_domain"
+    if [ -z "$_domain" ]; then
+      #not valid
+      return 1
+    fi
+
+    if _nederhost_rest GET "zones/${_domain}"; then
+      if [ "${_code}" = "204" ]; then
+        return 0
+      fi
+    else
+      return 1
+    fi
+    p=$i
+    i=$(_math "$i" + 1)
+  done
+  return 1
+}
+
+_nederhost_rest() {
+  m=$1
+  ep="$2"
+  data="$3"
+  _debug "$ep"
+
+  export _H1="Authorization: Bearer $NederHost_Key"
+  export _H2="Content-Type: application/json"
+
+  if [ "$m" != "GET" ]; then
+    _debug data "$data"
+    response="$(_post "$data" "$NederHost_Api/$ep" "" "$m")"
+  else
+    response="$(_get "$NederHost_Api/$ep")"
+  fi
+
+  _code="$(grep "^HTTP" "$HTTP_HEADER" | _tail_n 1 | cut -d " " -f 2 | tr -d "\\r\\n")"
+  _debug "http response code $_code"
+
+  if [ "$?" != "0" ]; then
+    _err "error $ep"
+    return 1
+  fi
+  _debug2 response "$response"
+  return 0
+}