diff --git a/cp/app/Controllers/DomainsController.php b/cp/app/Controllers/DomainsController.php
index 31baef5..49b401a 100644
--- a/cp/app/Controllers/DomainsController.php
+++ b/cp/app/Controllers/DomainsController.php
@@ -1068,6 +1068,7 @@ class DomainsController extends Controller
                 $csrfTokenValue = $this->container->get('csrf')->getTokenValue();
 
                 if (strpos($domain['name'], 'xn--') === 0) {
+                    $domain['punycode'] = $domain['name'];
                     $domain['name'] = idn_to_utf8($domain['name'], IDNA_NONTRANSITIONAL_TO_ASCII, INTL_IDNA_VARIANT_UTS46);
                 }
                 return view($response,'admin/domains/updateDomain.twig', [
diff --git a/cp/app/Controllers/HostsController.php b/cp/app/Controllers/HostsController.php
index b390ca2..3db7dbb 100644
--- a/cp/app/Controllers/HostsController.php
+++ b/cp/app/Controllers/HostsController.php
@@ -386,6 +386,7 @@ class HostsController extends Controller
                     [ $host['id'] ]);
 
                     if (strpos($host['name'], 'xn--') === 0) {
+                        $host['punycode'] = $host['name'];
                         $host['name'] = idn_to_utf8($host['name'], IDNA_NONTRANSITIONAL_TO_ASCII, INTL_IDNA_VARIANT_UTS46);
                     }
                     return view($response,'admin/hosts/updateHost.twig', [
@@ -529,8 +530,8 @@ class HostsController extends Controller
                     $hostname = idn_to_ascii($hostname, 0, INTL_IDNA_VARIANT_UTS46);
                 }
 
-                // Regular expression for validating a hostname (simplified version)
-                $pattern = '/^([a-zA-Z0-9-]{1,63}\.){1,}[a-zA-Z]{2,63}$/';
+                // Regular expression for validating a hostname
+                $pattern = '/^((xn--[a-zA-Z0-9-]{1,63}|[a-zA-Z0-9-]{1,63})\.){2,}(xn--[a-zA-Z0-9-]{2,63}|[a-zA-Z]{2,63})$/';
 
                 return preg_match($pattern, $hostname);
             }
diff --git a/cp/resources/views/admin/domains/updateDomain.twig b/cp/resources/views/admin/domains/updateDomain.twig
index 2a601fc..f4ccd60 100644
--- a/cp/resources/views/admin/domains/updateDomain.twig
+++ b/cp/resources/views/admin/domains/updateDomain.twig
@@ -30,7 +30,7 @@
                 <div class="card mb-3">
                   <div class="card-header">
                     <h3 class="card-title">
-                        {{ __('Domain') }} {{ domain.name }}&nbsp;<input type="hidden" name="domainName" value="{{ domain.name }}">
+                        {{ __('Domain') }} {{ domain.name }}&nbsp;<input type="hidden" name="domainName" value="{{ domain.punycode }}">
                         {% if domainStatus.status or domain.rgpstatus %}
                             {% if domainStatus is iterable %}
                                 {% for status in domainStatus %}
diff --git a/cp/resources/views/admin/hosts/updateHost.twig b/cp/resources/views/admin/hosts/updateHost.twig
index 7dee611..06fe7c5 100644
--- a/cp/resources/views/admin/hosts/updateHost.twig
+++ b/cp/resources/views/admin/hosts/updateHost.twig
@@ -28,7 +28,7 @@
               <div class="card">
                 <div class="card-body">
                   <form action="/host/update" method="post">
-                  {{ csrf.field | raw }}<input type="hidden" name="hostName" value="{{ host.name }}">
+                  {{ csrf.field | raw }}<input type="hidden" name="hostName" value="{{ host.punycode }}">
                     <div class="form-group mt-3">
                         <label for="ipv4" class="form-label">{{ __('IPv4 Address') }}:</label>
                         <input type="text" class="form-control" id="ipv4" name="ipv4" placeholder="192.168.1.1" pattern="^(?:[0-9]{1,3}\.){3}[0-9]{1,3}$" value="{{ hostIPv4[0].addr }}">