diff --git a/fe-app-podkop/src/constants.ts b/fe-app-podkop/src/constants.ts
index 7f39c3f..bdfe8f8 100644
--- a/fe-app-podkop/src/constants.ts
+++ b/fe-app-podkop/src/constants.ts
@@ -104,4 +104,4 @@ export const COMMAND_SCHEDULING = {
   P8_PRIORITY: 1500, // Background execution
   P9_PRIORITY: 1700, // Idle mode execution
   P10_PRIORITY: 1900, // Lowest priority
-};
+} as const;
diff --git a/fe-app-podkop/src/validators/index.ts b/fe-app-podkop/src/validators/index.ts
index fd9e2cc..88e6b03 100644
--- a/fe-app-podkop/src/validators/index.ts
+++ b/fe-app-podkop/src/validators/index.ts
@@ -9,3 +9,4 @@ export * from './validateShadowsocksUrl';
 export * from './validateVlessUrl';
 export * from './validateOutboundJson';
 export * from './validateTrojanUrl';
+export * from './validateProxyUrl';
diff --git a/fe-app-podkop/src/validators/validateProxyUrl.ts b/fe-app-podkop/src/validators/validateProxyUrl.ts
new file mode 100644
index 0000000..b9ef593
--- /dev/null
+++ b/fe-app-podkop/src/validators/validateProxyUrl.ts
@@ -0,0 +1,24 @@
+import { ValidationResult } from './types';
+import { validateShadowsocksUrl } from './validateShadowsocksUrl';
+import { validateVlessUrl } from './validateVlessUrl';
+import { validateTrojanUrl } from './validateTrojanUrl';
+
+// TODO refactor current validation and add tests
+export function validateProxyUrl(url: string): ValidationResult {
+  if (url.startsWith('ss://')) {
+    return validateShadowsocksUrl(url);
+  }
+
+  if (url.startsWith('vless://')) {
+    return validateVlessUrl(url);
+  }
+
+  if (url.startsWith('trojan://')) {
+    return validateTrojanUrl(url);
+  }
+
+  return {
+    valid: false,
+    message: 'URL must start with vless:// or ss:// or trojan://',
+  };
+}
diff --git a/luci-app-podkop/htdocs/luci-static/resources/view/podkop/configSection.js b/luci-app-podkop/htdocs/luci-static/resources/view/podkop/configSection.js
index a842d46..0c215c6 100644
--- a/luci-app-podkop/htdocs/luci-static/resources/view/podkop/configSection.js
+++ b/luci-app-podkop/htdocs/luci-static/resources/view/podkop/configSection.js
@@ -92,38 +92,13 @@ function createConfigSection(section) {
                 return _('No active configuration found. At least one non-commented line is required.');
             }
 
-            if (activeConfig.startsWith('ss://')) {
-                const validation = main.validateShadowsocksUrl(activeConfig);
+            const validation = main.validateProxyUrl(activeConfig);
 
-                if (validation.valid) {
-                    return true;
-                }
-
-                return _(validation.message)
+            if (validation.valid) {
+                return true;
             }
 
-            if (activeConfig.startsWith('vless://')) {
-                const validation = main.validateVlessUrl(activeConfig);
-
-                if (validation.valid) {
-                    return true;
-                }
-
-                return _(validation.message)
-            }
-
-            if (activeConfig.startsWith('trojan://')) {
-                const validation = main.validateTrojanUrl(activeConfig);
-
-                if (validation.valid) {
-                    return true;
-                }
-
-                return _(validation.message)
-            }
-
-            return _('URL must start with vless:// or ss:// or trojan://')
-
+            return _(validation.message)
         } catch (e) {
             return `${_('Invalid URL format:')} ${e?.message}`;
         }
@@ -150,11 +125,25 @@ function createConfigSection(section) {
 
     o = s.taboption('basic', form.DynamicList, 'urltest_proxy_links', _('URLTest Proxy Links'));
     o.depends('proxy_config_type', 'urltest');
-    o.placeholder = 'vless:// or ss:// link';
+    o.placeholder = 'vless://, ss://, trojan:// links';
     o.rmempty = false;
     o.textarea = true;
     o.rows = 3;
     o.wrap = 'soft';
+    o.validate = function (section_id, value) {
+        // Optional
+        if (!value || value.length === 0) {
+            return true
+        }
+
+        const validation = main.validateProxyUrl(value);
+
+        if (validation.valid) {
+            return true;
+        }
+
+        return _(validation.message)
+    };
 
     o = s.taboption('basic', form.Flag, 'ss_uot', _('Shadowsocks UDP over TCP'), _('Apply for SS2022'));
     o.default = '0';
diff --git a/luci-app-podkop/htdocs/luci-static/resources/view/podkop/main.js b/luci-app-podkop/htdocs/luci-static/resources/view/podkop/main.js
index ae3ee34..130c9fb 100644
--- a/luci-app-podkop/htdocs/luci-static/resources/view/podkop/main.js
+++ b/luci-app-podkop/htdocs/luci-static/resources/view/podkop/main.js
@@ -299,6 +299,23 @@ function validateTrojanUrl(url) {
   return { valid: true, message: "Valid" };
 }
 
+// src/validators/validateProxyUrl.ts
+function validateProxyUrl(url) {
+  if (url.startsWith("ss://")) {
+    return validateShadowsocksUrl(url);
+  }
+  if (url.startsWith("vless://")) {
+    return validateVlessUrl(url);
+  }
+  if (url.startsWith("trojan://")) {
+    return validateTrojanUrl(url);
+  }
+  return {
+    valid: false,
+    message: "URL must start with vless:// or ss:// or trojan://"
+  };
+}
+
 // src/helpers/getBaseUrl.ts
 function getBaseUrl() {
   const { protocol, hostname } = window.location;
@@ -485,6 +502,7 @@ return baseclass.extend({
   validateIPV4,
   validateOutboundJson,
   validatePath,
+  validateProxyUrl,
   validateShadowsocksUrl,
   validateSubnet,
   validateTrojanUrl,