diff --git a/app/Http/Controllers/Api/WebApi/SSController.php b/app/Http/Controllers/Api/WebApi/SSController.php
index c11dee66..c64188e9 100644
--- a/app/Http/Controllers/Api/WebApi/SSController.php
+++ b/app/Http/Controllers/Api/WebApi/SSController.php
@@ -12,13 +12,13 @@ class SSController extends CoreController
     {
         $data = [
             'id'           => $node->id,
-            'method'       => $node->profile['method'],
+            'method'       => $node->profile['method'] ?? '',
             'speed_limit'  => $node->getRawOriginal('speed_limit'),
             'client_limit' => $node->client_limit,
             'redirect_url' => sysConfig('redirect_url'),
         ];
 
-        if ($node->profile['passwd']) {
+        if (! empty($node->profile['passwd'])) {
             $data['port'] = $node->port;
         }
 
diff --git a/app/Http/Controllers/Api/WebApi/SSRController.php b/app/Http/Controllers/Api/WebApi/SSRController.php
index ed01b5b8..fd4f3524 100644
--- a/app/Http/Controllers/Api/WebApi/SSRController.php
+++ b/app/Http/Controllers/Api/WebApi/SSRController.php
@@ -12,9 +12,9 @@ class SSRController extends CoreController
     {
         return $this->returnData('获取节点信息成功', 200, 'success', [
             'id'           => $node->id,
-            'method'       => $node->profile['method'],
-            'protocol'     => $node->profile['protocol'],
-            'obfs'         => $node->profile['obfs'],
+            'method'       => $node->profile['method'] ?? '',
+            'protocol'     => $node->profile['protocol'] ?? '',
+            'obfs'         => $node->profile['obfs'] ?? '',
             'obfs_param'   => $node->profile['obfs_param'] ?? '',
             'is_udp'       => $node->is_udp,
             'speed_limit'  => $node->getRawOriginal('speed_limit'),
@@ -39,7 +39,7 @@ class SSRController extends CoreController
                 'method'      => $user->method,
                 'protocol'    => $user->protocol,
                 'obfs'        => $user->obfs,
-                'obfs_param'  => $node->profile['obfs_param'],
+                'obfs_param'  => $node->profile['obfs_param'] ?? '',
                 'speed_limit' => $user->getRawOriginal('speed_limit'),
                 'enable'      => $user->enable,
             ];
diff --git a/app/Http/Controllers/Api/WebApi/V2RayController.php b/app/Http/Controllers/Api/WebApi/V2RayController.php
index 6300b834..4a5ee4e7 100644
--- a/app/Http/Controllers/Api/WebApi/V2RayController.php
+++ b/app/Http/Controllers/Api/WebApi/V2RayController.php
@@ -12,7 +12,7 @@ class V2RayController extends CoreController
     public function getNodeInfo(Node $node): JsonResponse
     {
         $cert = NodeCertificate::whereDomain($node->profile['v2_host'])->first();
-        $tlsProvider = $node->profile['tls_provider'] ?: sysConfig('v2ray_tls_provider');
+        $tlsProvider = ! empty($node->profile['tls_provider']) ? $node->profile['tls_provider'] : sysConfig('v2ray_tls_provider');
         if (! $tlsProvider) {
             $tlsProvider = null;
         }
@@ -28,14 +28,14 @@ class V2RayController extends CoreController
             'key'             => $cert ? $cert->key : '',
             'pem'             => $cert ? $cert->pem : '',
             'v2_license'      => (string) sysConfig('v2ray_license'),
-            'v2_alter_id'     => $node->profile['v2_alter_id'],
+            'v2_alter_id'     => $node->profile['v2_alter_id'] ?? '',
             'v2_port'         => $node->port,
-            'v2_method'       => $node->profile['v2_method'],
-            'v2_net'          => $node->profile['v2_net'],
-            'v2_type'         => $node->profile['v2_type'],
-            'v2_host'         => $node->profile['v2_host'],
-            'v2_path'         => $node->profile['v2_path'],
-            'v2_tls'          => (bool) $node->profile['v2_tls'],
+            'v2_method'       => $node->profile['v2_method'] ?? '',
+            'v2_net'          => $node->profile['v2_net'] ?? '',
+            'v2_type'         => $node->profile['v2_type'] ?? '',
+            'v2_host'         => $node->profile['v2_host'] ?? '',
+            'v2_path'         => $node->profile['v2_path'] ?? '',
+            'v2_tls'          => (bool) ($node->profile['v2_tls'] ?? false),
             'v2_tls_provider' => $tlsProvider,
         ]);
     }
diff --git a/config/bobclient.php b/config/bobclient.php
index 68c0de8c..3b0ed9bb 100644
--- a/config/bobclient.php
+++ b/config/bobclient.php
@@ -12,7 +12,7 @@ return [
     'login'        => [
         'telegram_url'   => '',  // 留空的话则不展示telegram群
         'qq_url'         => '',  // 留空的话则不展示QQ群
-        'background_img' => 'https://demo.proxypanel.ml/assets/images/logo64.png', // 背景图片地址,图片宽高不超过 860px * 544px 就行 （留空为默认的背景图）
+        'background_img' => 'https://demo.proxypanel.cf/assets/images/logo64.png', // 背景图片地址,图片宽高不超过 860px * 544px 就行 （留空为默认的背景图）
         'text'           => '一键开启<br>极速上网体验',
         'text_color'     => 'rgba(255, 255, 255, 0.8);',    // 文字和按钮颜色   默认颜色 rgba(255, 255, 255, 0.8);
         'button_color'   => '#8077f1',    // 文字和按钮颜色 默认颜色：#8077f1(v2版本配置)
@@ -50,5 +50,5 @@ return [
     ],
 
     // 个人中心头像
-    'user_avatar'  => 'https://demo.proxypanel.ml/assets/images/avatar.svg',
+    'user_avatar'  => 'https://demo.proxypanel.cf/assets/images/avatar.svg',
 ];
diff --git a/database/seeds/PresetSeeder.php b/database/seeds/PresetSeeder.php
index 0767fdd3..dcc5aa93 100644
--- a/database/seeds/PresetSeeder.php
+++ b/database/seeds/PresetSeeder.php
@@ -141,7 +141,7 @@ class PresetSeeder extends Seeder
             'website_name' => 'ProxyPanel',
             'is_reset_password' => 1,
             'reset_password_times' => 3,
-            'website_url' => 'https://demo.proxypanel.ml',
+            'website_url' => 'https://demo.proxypanel.cf',
             'active_times' => 3,
             'is_checkin' => 1,
             'min_rand_traffic' => 10,
diff --git a/readme.md b/readme.md
index 9d13cbdc..25ef1c2c 100644
--- a/readme.md
+++ b/readme.md
@@ -3,7 +3,7 @@
 
 Support but not limited to: Shadowsocks,ShadowsocksR,ShadowsocksRR,V2Ray,Trojan,VNET
 
-- [Demo](https://demo.proxypanel.ml/) Demo will always on dev/latest code, rather than the stable version.
+- [Demo](https://demo.proxypanel.cf/) Demo will always on dev/latest code, rather than the stable version.
     - Account: test@test.com
     - Password: 123456
 - [**WIKI**](https://proxypanel.gitbook.io/wiki/)
diff --git a/resources/views/admin/config/system.blade.php b/resources/views/admin/config/system.blade.php
index ca92a073..5684ccd9 100644
--- a/resources/views/admin/config/system.blade.php
+++ b/resources/views/admin/config/system.blade.php
@@ -120,7 +120,7 @@
                             <x-system.input-limit title="订阅节点数" code="subscribe_max" :value="$subscribe_max" help="客户端订阅时取得几个节点，为0/留空时返回全部节点"/>
                             <x-system.switch title="随机订阅" code="rand_subscribe" :check="$rand_subscribe" help="启用后，订阅时将随机返回节点信息，否则按节点排序返回"/>
                             <x-system.switch title="高级订阅" code="is_custom_subscribe" :check="$is_custom_subscribe" help="启用后，订阅信息顶部将显示过期时间、剩余流量（只支持个别客户端）"/>
-                            <x-system.input title="授权/后端访问域名" :value="$web_api_url" code="web_api_url" help="例：https://demo.proxypanel.ml" type="url"/>
+                            <x-system.input title="授权/后端访问域名" :value="$web_api_url" code="web_api_url" help="例：https://demo.proxypanel.cf" type="url"/>
                             <x-system.input title="V2Ray授权" :value="$v2ray_license" code="v2ray_license"/>
                             <x-system.input title="Trojan授权" :value="$trojan_license" code="trojan_license"/>
                             <x-system.input title="V2Ray TLS配置" :value="$v2ray_tls_provider" code="v2ray_tls_provider" help="后端自动签发/载入TLS证书时用（节点的设置值优先级高于此处）"/>
diff --git a/resources/views/admin/node/index.blade.php b/resources/views/admin/node/index.blade.php
index bf74a0b0..6b0ad659 100644
--- a/resources/views/admin/node/index.blade.php
+++ b/resources/views/admin/node/index.blade.php
@@ -60,9 +60,9 @@
                             <td> {{$node->transfer}} </td>
                             <td> {{$node->traffic_rate}} </td>
                             <td>
-                                @if(isset($node->profile['passwd']))
+                                @isset($node->profile['passwd'])
                                     <span class="badge badge-lg badge-info"><i class="icon fas fa-stream"></i>单</span>
-                                @endif
+                                @endisset
                                 @if($node->relay_node_id)
                                     <span class="badge badge-lg badge-info"><i class="icon fas fa-ethernet"></i>转</span>
                                 @endif
diff --git a/resources/views/admin/node/info.blade.php b/resources/views/admin/node/info.blade.php
index 22f1fb7a..7d9ca26d 100644
--- a/resources/views/admin/node/info.blade.php
+++ b/resources/views/admin/node/info.blade.php
@@ -480,7 +480,7 @@
             $('#v2_port').val('{{$node->port}}');
             $('#v2_sni').val('{{$node->profile['v2_sni'] ?? null}}');
             v2_path.val('{{$node->profile['v2_path'] ?? null}}');
-            @if($node->profile['v2_tls'])
+            @if($node->profile['v2_tls'] ?? false)
             $('#v2_tls').click();
             @endif
             $('#tls_provider').val('{!! $node->tls_provider !!}');
diff --git a/resources/views/admin/user/export.blade.php b/resources/views/admin/user/export.blade.php
index 1774395c..247291b0 100644
--- a/resources/views/admin/user/export.blade.php
+++ b/resources/views/admin/user/export.blade.php
@@ -33,7 +33,7 @@
                                 @endcan
                             </td>
                             <td>
-                                @if($node->profile['passwd']) <span class="label label-danger">单</span> @endif
+                                @if(!empty($node->profile['passwd'])) <span class="label label-danger">单</span> @endif
                                 @if($node->ipv6) <span class="label label-danger">IPv6</span> @endif
                             </td>
                             <td>{{$node->server}}</td>