diff --git a/src/App/Controller/ClashxController.php b/src/App/Controller/ClashxController.php
new file mode 100644
index 0000000..f4c66b7
--- /dev/null
+++ b/src/App/Controller/ClashxController.php
@@ -0,0 +1,32 @@
+<?php
+
+namespace OpenCCK\App\Controller;
+
+class ClashxController extends TextController {
+    const DELIMITER = "\n";
+
+    /**
+     * @param array $response
+     * @return string
+     * Поддерживаемые типы правил в ClashX:
+     * DOMAIN-SUFFIX — для доменов по суффиксу.
+     * DOMAIN — для конкретных доменов.
+     * DOMAIN-KEYWORD — для доменов, содержащих определённые ключевые слова.
+     * IP-CIDR — для IP-адресов и IPv4-сетей.
+     * IP-CIDR6 — для IPv6-сетей.
+     * SRC-IP-CIDR — для исходных IP-адресов или сетей.
+     * SRC-IP-CIDR6 — для исходных IPv6-адресов или сетей.
+     * GEOIP — для определения страны по IP.
+     */
+    protected function render(array $response): string {
+        $data = $this->request->getQueryParameter('data') ?? '';
+        $handlers = [
+            'domains' => fn(string $row) => 'DOMAIN-SUFFIX,' . $row,
+            'ip4' => fn(string $row) => 'IP-CIDR,' . $row . '/32',
+            'ip6' => fn(string $row) => 'IP-CIDR6,' . $row . '/128',
+            'cidr4' => fn(string $row) => 'IP-CIDR,' . $row,
+            'cidr6' => fn(string $row) => 'IP-CIDR6,' . $row,
+        ];
+        return implode($this::DELIMITER, array_map($handlers[$data] ?? fn(string $row) => $row, $response));
+    }
+}
diff --git a/src/App/Controller/IpsetController.php b/src/App/Controller/IpsetController.php
new file mode 100644
index 0000000..1487719
--- /dev/null
+++ b/src/App/Controller/IpsetController.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace OpenCCK\App\Controller;
+
+class IpsetController extends TextController {
+    const DELIMITER = "\n";
+
+    /**
+     * @param array $response
+     * @return string
+     */
+    protected function render(array $response): string {
+        $data = $this->request->getQueryParameter('data') ?? '';
+        return implode(
+            $this::DELIMITER,
+            array_map(fn(string $row) => 'ipset=/' . $row . '/vpn_' . $data, $response)
+        );
+    }
+}
diff --git a/src/App/Controller/KvasController.php b/src/App/Controller/KvasController.php
new file mode 100644
index 0000000..8bd608c
--- /dev/null
+++ b/src/App/Controller/KvasController.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace OpenCCK\App\Controller;
+
+/**
+ * Format Keenetic (KVAS)
+ */
+class KvasController extends TextController {
+    const DELIMITER = "\n";
+
+    /**
+     * @param array $response
+     * @return string
+     */
+    protected function render(array $response): string {
+        $data = $this->request->getQueryParameter('data') ?? '';
+        $handlers = [
+            'domains' => fn(string $row) => '*' . $row,
+            'ip4' => fn(string $row) => $row . '/32',
+            'ip6' => fn(string $row) => $row . '/128',
+            'cidr4' => fn(string $row) => $row,
+            'cidr6' => fn(string $row) => $row,
+        ];
+        return implode($this::DELIMITER, array_map($handlers[$data] ?? fn(string $row) => $row, $response));
+    }
+}
diff --git a/src/App/Controller/MikrotikController.php b/src/App/Controller/MikrotikController.php
index 4bcebee..ecd6423 100644
--- a/src/App/Controller/MikrotikController.php
+++ b/src/App/Controller/MikrotikController.php
@@ -14,7 +14,7 @@ class MikrotikController extends AbstractIPListController {
         $sites = SiteFactory::normalizeArray($this->request->getQueryParameters()['site'] ?? []);
         $data = $this->request->getQueryParameter('data') ?? '';
         if ($data == '') {
-            return "# Error: The 'data' GET parameter is required in the URL to access this page, but it cannot have the value 'All'";
+            return "# Error: The 'data' GET parameter is required in the URL to access this page";
         }
 
         $response = [];
diff --git a/src/App/Controller/NfsetController.php b/src/App/Controller/NfsetController.php
new file mode 100644
index 0000000..7bd10c5
--- /dev/null
+++ b/src/App/Controller/NfsetController.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace OpenCCK\App\Controller;
+
+class NfsetController extends TextController {
+    const DELIMITER = "\n";
+
+    /**
+     * @param array $response
+     * @return string
+     */
+    protected function render(array $response): string {
+        $data = $this->request->getQueryParameter('data') ?? '';
+
+        $prefix = 'nftset=/';
+        $suffix = '#inet#fw4#vpn_';
+        $handlers = [
+            'domains' => fn(string $row) => $prefix . $row . '/4' . $suffix . $data,
+            'ip4' => fn(string $row) => $prefix . $row . '/4' . $suffix . $data,
+            'ip6' => fn(string $row) => $prefix . $row . '/6' . $suffix . $data,
+            'cidr4' => fn(string $row) => $prefix . $row . '/4' . $suffix . $data,
+            'cidr6' => fn(string $row) => $prefix . $row . '/6' . $suffix . $data,
+        ];
+        return implode($this::DELIMITER, array_map($handlers[$data] ?? fn(string $row) => $row, $response));
+    }
+}
diff --git a/src/App/Controller/TextController.php b/src/App/Controller/TextController.php
index b6d9fbb..5c0ee15 100644
--- a/src/App/Controller/TextController.php
+++ b/src/App/Controller/TextController.php
@@ -15,7 +15,7 @@ class TextController extends AbstractIPListController {
         $sites = SiteFactory::normalizeArray($this->request->getQueryParameters()['site'] ?? []);
         $data = $this->request->getQueryParameter('data') ?? '';
         if ($data == '') {
-            return "# Error: The 'data' GET parameter is required in the URL to access this page, but it cannot have the value 'All'";
+            return "# Error: The 'data' GET parameter is required in the URL to access this page";
         }
 
         $response = [];
@@ -29,9 +29,16 @@ class TextController extends AbstractIPListController {
             }
         }
 
-        return implode(
-            $this::DELIMITER,
+        return $this->render(
             SiteFactory::normalizeArray($response, in_array($data, ['ipv4', 'ipv6', 'cidr4', 'cidr6']))
         );
     }
+
+    /**
+     * @param array $response
+     * @return string
+     */
+    protected function render(array $response): string {
+        return implode($this::DELIMITER, $response);
+    }
 }
diff --git a/src/App/Service/IPListService.php b/src/App/Service/IPListService.php
index 357d4d5..bc2cd45 100644
--- a/src/App/Service/IPListService.php
+++ b/src/App/Service/IPListService.php
@@ -60,6 +60,10 @@ class IPListService {
      * @return void
      */
     private function loadConfig(string $name, object $config): void {
+        if (isset($this->sites[$name])) {
+            $this->logger->error(sprintf('Site "%s" already exists', $name));
+            return;
+        }
         $this->sites[$name] = SiteFactory::create($name, $config);
     }
 }
diff --git a/src/App/Template/IndexTemplate.php b/src/App/Template/IndexTemplate.php
index 1894980..d42f3df 100644
--- a/src/App/Template/IndexTemplate.php
+++ b/src/App/Template/IndexTemplate.php
@@ -619,10 +619,14 @@ use OpenCCK\App\Controller\TextController;
                     Format:
                     <select name="format" class="main-formSelect">
                         <option value="json">JSON</option>
-                        <option value="mikrotik">MikroTik</option>
                         <option value="text">Text</option>
                         <option value="comma">Comma</option>
-                        <option value="switchy">Switchy RuleList</option>
+                        <option value="mikrotik">MikroTik Script</option>
+                        <option value="switchy">SwitchyOmega RuleList</option>
+                        <option value="nfset">Dnsmasq nfset</option>
+                        <option value="ipset">Dnsmasq ipset</option>
+                        <option value="clashx">ClashX</option>
+                        <option value="kvas">Keenetic KVAS</option>
                     </select>
                 </label>
                 <label class="main-formItem">
diff --git a/src/Domain/Factory/SiteFactory.php b/src/Domain/Factory/SiteFactory.php
index 3abcedb..84d39c7 100644
--- a/src/Domain/Factory/SiteFactory.php
+++ b/src/Domain/Factory/SiteFactory.php
@@ -83,17 +83,17 @@ class SiteFactory {
 
     /**
      * @param array $array
-     * @param bool $excludeLocalIPs
+     * @param bool $isIpAddresses
      * @return array
      */
-    public static function normalize(array $array, bool $excludeLocalIPs = false): array {
+    public static function normalize(array $array, bool $isIpAddresses = false): array {
         return array_values(
             array_unique(
                 array_filter(
                     $array,
                     fn(string $item) => !str_starts_with($item, '#') &&
                         strlen($item) > 0 &&
-                        (!$excludeLocalIPs ||
+                        (!$isIpAddresses ||
                             (!str_starts_with($item, '10.') &&
                                 !str_starts_with($item, '172.16.') &&
                                 !str_starts_with($item, '192.168.') &&
@@ -105,11 +105,11 @@ class SiteFactory {
 
     /**
      * @param array $array
-     * @param bool $excludeLocalIPs
+     * @param bool $isIpAddresses
      * @return array
      */
-    public static function normalizeArray(array $array, bool $excludeLocalIPs = false): array {
+    public static function normalizeArray(array $array, bool $isIpAddresses = false): array {
         sort($array);
-        return SiteFactory::normalize($array, $excludeLocalIPs);
+        return SiteFactory::normalize($array, $isIpAddresses);
     }
 }