diff --git a/Api/Data/DomainInterface.php b/Api/Data/DomainInterface.php
new file mode 100644
index 0000000..7b48f44
--- /dev/null
+++ b/Api/Data/DomainInterface.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace Shkoliar\Ngrok\Api\Data;
+
+interface DomainInterface
+{
+    public const NGROK_IO = '.ngrok.io';
+
+    public const NGROK_APP = '.ngrok.app';
+
+    public const NGROK_DEV = '.ngrok.dev';
+
+    public const NGROK_FREE_APP = '.ngrok-free.app';
+
+    public const NGROK_FREE_DEV = '.ngrok-free.dev';
+}
\ No newline at end of file
diff --git a/Helper/Ngrok.php b/Helper/Ngrok.php
index 8f66418..5d01ab6 100644
--- a/Helper/Ngrok.php
+++ b/Helper/Ngrok.php
@@ -8,15 +8,28 @@
 
 namespace Shkoliar\Ngrok\Helper;
 
-class Ngrok extends \Magento\Framework\App\Helper\AbstractHelper
+use Magento\Framework\App\Helper\AbstractHelper;
+use Magento\Framework\App\Helper\Context;
+use Shkoliar\Ngrok\Model\Config;
+
+class Ngrok extends AbstractHelper
 {
     const SCHEME_HTTP  = 'http';
     const SCHEME_HTTPS = 'https';
 
-    const NGROK_DOMAIN = '.ngrok.io';
-
     const HTTP_X_FORWARDED_PROTO = 'HTTP_X_FORWARDED_PROTO';
 
+    /**
+     * @param Context $context
+     * @param Config $config
+     */
+    public function __construct(
+        protected Context $context,
+        private Config $config
+    ) {
+        parent::__construct($context);
+    }
+
     /**
      * Get server parameter value by key
      *
@@ -38,7 +51,11 @@ public function getDomain()
     {
         $ngrokDomain = $this->getServer('HTTP_X_ORIGINAL_HOST') ?: $this->getServer('HTTP_HOST');
 
-        return stripos($ngrokDomain, self::NGROK_DOMAIN) !== false ? $ngrokDomain : false;
+        $configuredNgrokDomain = $this->config->isCustomDomainEnabled() ?
+            $this->config->getCustomDomain() :
+            $this->config->getDomain();
+
+        return stripos($ngrokDomain, $configuredNgrokDomain) !== false ? $ngrokDomain : false;
     }
 
     /**
diff --git a/Model/Config.php b/Model/Config.php
new file mode 100644
index 0000000..8db8e6c
--- /dev/null
+++ b/Model/Config.php
@@ -0,0 +1,49 @@
+<?php declare(strict_types=1);
+
+namespace Shkoliar\Ngrok\Model;
+
+use Magento\Framework\App\Config\ScopeConfigInterface;
+
+class Config
+{
+    private const XML_IS_CUSTOM_DOMAIN = 'ngrok/general/enable_custom_domain';
+    private const XML_DOMAIN = 'ngrok/general/domain';
+    private const XML_CUSTOM_DOMAIN = 'ngrok/general/custom_domain';
+
+    /**
+     * @param ScopeConfigInterface $scopeConfig
+     */
+    public function __construct(
+        private ScopeConfigInterface $scopeConfig
+    ) {}
+
+    /**
+     * @return bool
+     */
+    public function isCustomDomainEnabled(): bool
+    {
+        return $this->scopeConfig->isSetFlag(
+            self::XML_IS_CUSTOM_DOMAIN
+        );
+    }
+
+    /**
+     * @return string
+     */
+    public function getDomain(): string
+    {
+        return (string)$this->scopeConfig->getValue(
+            self::XML_DOMAIN
+        );
+    }
+
+    /**
+     * @return string
+     */
+    public function getCustomDomain(): string
+    {
+        return (string)$this->scopeConfig->getValue(
+            self::XML_CUSTOM_DOMAIN
+        );
+    }
+}
\ No newline at end of file
diff --git a/Model/Config/Source/Domain.php b/Model/Config/Source/Domain.php
new file mode 100644
index 0000000..a020b2d
--- /dev/null
+++ b/Model/Config/Source/Domain.php
@@ -0,0 +1,33 @@
+<?php declare(strict_types=1);
+
+namespace Shkoliar\Ngrok\Model\Config\Source;
+
+use Magento\Framework\Data\OptionSourceInterface;
+use Shkoliar\Ngrok\Api\Data\DomainInterface;
+
+class Domain implements OptionSourceInterface
+{
+    /**
+     * @return array
+     */
+    public function toOptionArray(): array
+    {
+        return [
+            [
+                'label' => DomainInterface::NGROK_IO, 'value' => DomainInterface::NGROK_IO
+            ],
+            [
+                'label' => DomainInterface::NGROK_APP, 'value' => DomainInterface::NGROK_APP
+            ],
+            [
+                'label' => DomainInterface::NGROK_DEV, 'value' => DomainInterface::NGROK_DEV
+            ],
+            [
+                'label' => DomainInterface::NGROK_FREE_APP, 'value' => DomainInterface::NGROK_FREE_APP
+            ],
+            [
+                'label' => DomainInterface::NGROK_FREE_DEV, 'value' => DomainInterface::NGROK_FREE_DEV
+            ]
+        ];
+    }
+}
\ No newline at end of file
diff --git a/etc/acl.xml b/etc/acl.xml
new file mode 100644
index 0000000..5d870a8
--- /dev/null
+++ b/etc/acl.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0"?>
+<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:noNamespaceSchemaLocation="urn:magento:framework:Acl/etc/acl.xsd">
+    <acl>
+        <resources>
+            <resource id="Magento_Backend::admin" title="Magento Admin">
+                <resource id="Shkoliar_Ngrok::config" title="Shkoliar Ngrok"/>
+            </resource>
+        </resources>
+    </acl>
+</config>
diff --git a/etc/adminhtml/system.xml b/etc/adminhtml/system.xml
new file mode 100644
index 0000000..f047472
--- /dev/null
+++ b/etc/adminhtml/system.xml
@@ -0,0 +1,52 @@
+<?xml version="1.0"?>
+<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Config:etc/system_file.xsd">
+    <system>
+        <tab id="ngrok_tab" translate="label" sortOrder="1000">
+            <label>Ngrok</label>
+        </tab>
+        <section id="ngrok"
+                 translate="label"
+                 sortOrder="10"
+                 showInDefault="1">
+            <class>separator-top</class>
+            <label>Ngrok</label>
+            <tab>ngrok_tab</tab>
+            <resource>Shkoliar_Ngrok::config</resource>
+            <group id="general"
+                   translate="label"
+                   type="text"
+                   sortOrder="10"
+                   showInDefault="1">
+                <label>General</label>
+                <field id="domain"
+                       translate="label"
+                       type="select"
+                       sortOrder="10"
+                       showInDefault="1">
+                    <label>Domain</label>
+                    <validate>required-entry</validate>
+                    <source_model>Shkoliar\Ngrok\Model\Config\Source\Domain</source_model>
+                </field>
+                <field id="enable_custom_domain"
+                       translate="label"
+                       type="select"
+                       sortOrder="20"
+                       showInDefault="1">
+                    <validate>required-entry</validate>
+                    <source_model>Magento\Config\Model\Config\Source\Yesno</source_model>
+                </field>
+                <field id="custom_domain"
+                       translate="label"
+                       type="text"
+                       sortOrder="30"
+                       showInDefault="1">
+                    <label>Custom Domain</label>
+                    <depends>
+                        <field id="ngrok/general/enable_custom_domain">1</field>
+                    </depends>
+                </field>
+            </group>
+        </section>
+    </system>
+</config>
diff --git a/etc/config.xml b/etc/config.xml
new file mode 100644
index 0000000..58b2b90
--- /dev/null
+++ b/etc/config.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0"?>
+<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Store:etc/config.xsd">
+    <default>
+        <ngrok>
+            <general>
+                <enable_custom_domain>0</enable_custom_domain>
+                <domain>.ngrok-free.app</domain>
+            </general>
+        </ngrok>
+    </default>
+</config>
diff --git a/etc/module.xml b/etc/module.xml
index 94185a5..99ca182 100644
--- a/etc/module.xml
+++ b/etc/module.xml
@@ -9,5 +9,10 @@
 -->
 <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
-    <module name="Shkoliar_Ngrok" setup_version="1.0.0" />
+    <module name="Shkoliar_Ngrok">
+        <sequence>
+            <module name="Magento_Config"/>
+            <module name="Magento_Store"/>
+        </sequence>
+    </module>
 </config>
\ No newline at end of file