diff --git a/app/Helpers/AuthHelper.php b/app/Helpers/AuthHelper.php
index 22d7ada..7dd8a41 100644
--- a/app/Helpers/AuthHelper.php
+++ b/app/Helpers/AuthHelper.php
@@ -19,7 +19,7 @@ class AuthHelper extends CommonHelper
         switch ($field) {
             case 'id':
             case 'passwd':
-                $form = form_password($field, "", ["autocomplete" => $field, ...$extras]);
+                $form = form_password($field, "", ["id" => $field, ...$extras]);
                 break;
             default:
                 $form = parent::getFieldForm($field, $value, $viewDatas, $extras);
diff --git a/app/Helpers/CommonHelper.php b/app/Helpers/CommonHelper.php
index a3aba9f..937a232 100644
--- a/app/Helpers/CommonHelper.php
+++ b/app/Helpers/CommonHelper.php
@@ -218,11 +218,11 @@ class CommonHelper
     }
     switch ($field) {
       case 'email':
-        $form = form_input($field, $value ?? "", ["placeholder" => "예)test@example.com", ...$extras]);
+        $form = form_input($field, $value ?? "", ["id" => $field, "placeholder" => "예)test@example.com", ...$extras]);
         break;
       case 'mobile':
       case 'phone':
-        $form = form_input($field, $value ?? "", ["placeholder" => "예)010-0010-0010", ...$extras]);
+        $form = form_input($field, $value ?? "", ["id" => $field, "placeholder" => "예)010-0010-0010", ...$extras]);
         break;
       case 'role':
         if (!is_array($viewDatas['control']['filter_optons'][$field])) {
@@ -233,7 +233,7 @@ class CommonHelper
           $forms = [];
           foreach ($viewDatas['control']['filter_optons'][$field] as $key => $filterEntity) {
             $values = is_array($value) ? $value : explode(DEFAULTS["DELIMITER_ROLE"], $value);
-            $forms[] = form_checkbox("{$field}[]", $key, in_array($key, $values)) . $filterEntity->getTitle();
+            $forms[] = form_checkbox("{$field}[]", $key, in_array($key, $values), ["id" => $field, ...$extras]) . $filterEntity->getTitle();
           }
           $form = implode(" ", $forms);
         } else {
@@ -241,7 +241,7 @@ class CommonHelper
           foreach ($viewDatas['control']['filter_optons'][$field] as $key => $filterEntity) {
             $formOptions[$key] = $filterEntity->getTitle();
           }
-          $form = form_dropdown($field, $formOptions, $value, $extras);
+          $form = form_dropdown($field, $formOptions, $value, ["id" => $field, ...$extras]);
         }
         break;
       case 'expired_at':
@@ -250,7 +250,7 @@ class CommonHelper
       case 'updated_at':
       case 'created_at':
         $extra_class = isset($extras['class']) ? $extras['class'] . ' calender' : 'calender';
-        $form = form_input($field, $value ?? "", ['class' => $extra_class, ...array_diff_key($extras, ['class' => ''])]);
+        $form = form_input($field, $value ?? "", ["id" => $field, 'class' => $extra_class, ...array_diff_key($extras, ['class' => ''])]);
         break;
       case 'description':
       case 'content':
@@ -272,7 +272,7 @@ class CommonHelper
           if (in_array($viewDatas['control']['action'], ['create', 'modify', 'create_form', 'modify_form'])) {
             $value = $value ?? DEFAULTS['STATUS'];
           }
-          $form = form_dropdown($field, $formOptions, $value, ['class' => $extra_class, ...array_diff_key($extras, ['class' => ''])]);
+          $form = form_dropdown($field, $formOptions, $value, ["id" => $field, 'class' => $extra_class, ...array_diff_key($extras, ['class' => ''])]);
         } else {
           $form = form_input($field, $value ?? "", $extras);
         }
diff --git a/app/Helpers/Customer/ServiceHelper.php b/app/Helpers/Customer/ServiceHelper.php
index 2864608..62da6d7 100644
--- a/app/Helpers/Customer/ServiceHelper.php
+++ b/app/Helpers/Customer/ServiceHelper.php
@@ -57,7 +57,7 @@ class ServiceHelper extends CustomerHelper
                     throw new \Exception(__METHOD__ . "에서 {$field}의 field_options가 array형태가 아닙니다.");
                 }
                 //CodeIgniter 4의 form_dropdown()은 options 배열로만 값을 받기 때문에, disabled 속성 같은 개별 옵션에 대한 HTML 속성 추가는 기본적으로 지원하지 않습니다.
-                $form_temps = ["<select name=\"{$field}\" class=\"select-field\"" . (isset($extras['onChange']) ? " onChange=\"{$extras['onChange']}\"" : "") . ">"];
+                $form_temps = ["<select id=\"{$field}\" name=\"{$field}\" class=\"select-field\"" . (isset($extras['onChange']) ? " onChange=\"{$extras['onChange']}\"" : "") . ">"];
                 $form_temps[] = "<option value=\"\">" . lang($viewDatas['class_path'] . '.label.' . $field) . " 선택</option>";
                 foreach ($viewDatas['control']['filter_optons'][$field]  as $key => $filterEntity) {
                     $disabled = $filterEntity->getStatus() === SwitchEntity::STATUS_OCCUPIED ? 'disabled="disabled"' : '';
@@ -78,7 +78,7 @@ class ServiceHelper extends CustomerHelper
                     throw new \Exception(__METHOD__ . "에서 {$field}의 field_options가 array형태가 아닙니다.");
                 }
                 //CodeIgniter 4의 form_dropdown()은 options 배열로만 값을 받기 때문에, disabled 속성 같은 개별 옵션에 대한 HTML 속성 추가는 기본적으로 지원하지 않습니다.
-                $form_temps = ["<select name=\"{$field}\" class=\"select-field\"" . (isset($extras['onChange']) ? " onChange=\"{$extras['onChange']}\"" : "") . ">"];
+                $form_temps = ["<select id=\"{$field}\" name=\"{$field}\" class=\"select-field\"" . (isset($extras['onChange']) ? " onChange=\"{$extras['onChange']}\"" : "") . ">"];
                 $form_temps[] = "<option value=\"\">" . lang($viewDatas['class_path'] . '.label.' . $field) . " 선택</option>";
                 foreach ($viewDatas['control']['filter_optons'][$field]  as $key => $filterEntity) {
                     $disabled = $filterEntity->getStatus() === CodeEntity::STATUS_OCCUPIED ? 'disabled="disabled"' : '';
diff --git a/app/Helpers/Customer/ServiceItemHelper.php b/app/Helpers/Customer/ServiceItemHelper.php
index 9557e65..98482ea 100644
--- a/app/Helpers/Customer/ServiceItemHelper.php
+++ b/app/Helpers/Customer/ServiceItemHelper.php
@@ -29,7 +29,7 @@ class ServiceItemHelper extends CustomerHelper
                     throw new \Exception(__METHOD__ . "에서 {$item_type}의 field_options가 array형태가 아닙니다.");
                 }
                 //CodeIgniter 4의 form_dropdown()은 options 배열로만 값을 받기 때문에, disabled 속성 같은 개별 옵션에 대한 HTML 속성 추가는 기본적으로 지원하지 않습니다.
-                $form_temps = ["<select name=\"{$field}\" class=\"select-field\"" . (isset($extras['onChange']) ? " onChange=\"{$extras['onChange']}\"" : "") . ">"];
+                $form_temps = ["<select id=\"{$field}\" name=\"{$field}\" class=\"select-field\"" . (isset($extras['onChange']) ? " onChange=\"{$extras['onChange']}\"" : "") . ">"];
                 $form_temps[] = "<option value=\"\">" . lang($viewDatas['class_path'] . '.label.' . $item_type) . " 선택</option>";
                 foreach ($viewDatas['control']['filter_optons'][$item_type]  as $key => $filterEntity) {
                     $disabled = $filterEntity->getStatus() === IpEntity::STATUS_OCCUPIED ? 'disabled="disabled"' : '';
@@ -50,7 +50,7 @@ class ServiceItemHelper extends CustomerHelper
                     throw new \Exception(__METHOD__ . "에서 {$item_type}의 field_options가 array형태가 아닙니다.");
                 }
                 //CodeIgniter 4의 form_dropdown()은 options 배열로만 값을 받기 때문에, disabled 속성 같은 개별 옵션에 대한 HTML 속성 추가는 기본적으로 지원하지 않습니다.
-                $form_temps = ["<select name=\"{$field}\" class=\"select-field\"" . (isset($extras['onChange']) ? " onChange=\"{$extras['onChange']}\"" : "") . ">"];
+                $form_temps = ["<select id=\"{$field}\" name=\"{$field}\" class=\"select-field\"" . (isset($extras['onChange']) ? " onChange=\"{$extras['onChange']}\"" : "") . ">"];
                 $form_temps[] = "<option value=\"\">" . lang($viewDatas['class_path'] . '.label.' . $item_type) . " 선택</option>";
                 foreach ($viewDatas['control']['filter_optons'][$item_type]  as $key => $filterEntity) {
                     $disabled = $filterEntity->getStatus() === DomainEntity::STATUS_OCCUPIED ? 'disabled="disabled"' : '';
@@ -78,7 +78,7 @@ class ServiceItemHelper extends CustomerHelper
                     throw new \Exception(__METHOD__ . "에서 {$item_type}의 field_options가 array형태가 아닙니다.");
                 }
                 //CodeIgniter 4의 form_dropdown()은 options 배열로만 값을 받기 때문에, disabled 속성 같은 개별 옵션에 대한 HTML 속성 추가는 기본적으로 지원하지 않습니다.
-                $form_temps = ["<select name=\"{$field}\" class=\"select-field\"" . (isset($extras['onChange']) ? " onChange=\"{$extras['onChange']}\"" : "") . ">"];
+                $form_temps = ["<select id=\"{$field}\" name=\"{$field}\" class=\"select-field\"" . (isset($extras['onChange']) ? " onChange=\"{$extras['onChange']}\"" : "") . ">"];
                 $form_temps[] = "<option value=\"\">" . lang($viewDatas['class_path'] . '.label.' . $item_type) . " 선택</option>";
                 foreach ($viewDatas['control']['filter_optons'][$item_type]  as $key => $filterEntity) {
                     $disabled = '';
diff --git a/app/Helpers/Equipment/Part/DomainHelper.php b/app/Helpers/Equipment/Part/DomainHelper.php
index 258f658..876e1d9 100644
--- a/app/Helpers/Equipment/Part/DomainHelper.php
+++ b/app/Helpers/Equipment/Part/DomainHelper.php
@@ -11,4 +11,21 @@ class DomainHelper extends PartHelper
         parent::__construct();
         $this->setTitleField(field: DomainModel::TITLE);
     }
+
+    public function getFieldForm(string $field, mixed $value, array $viewDatas, array $extras = []): string
+    {
+        if (in_array($viewDatas['control']['action'], ['create', 'modify', 'create_form', 'modify_form'])) {
+            $extras = (strpos($viewDatas['control']['field_rules'][$field], 'required') !== false) ? ["class" => "form-control", "required" => "", ...$extras] : ["class" => "form-control", ...$extras];
+        }
+        switch ($field) {
+            case 'domain':
+                $form = form_input($field, "", ["id" => $field, "placeholder" => "예)domain.co.kr", ...$extras]);
+                $form .= "<div id=\"domain-errors\" style=\"color:red; margin-top:5px;\"></div>";
+                break;
+            default:
+                $form = parent::getFieldForm($field, $value, $viewDatas, $extras);
+                break;
+        }
+        return $form;
+    } //
 }
diff --git a/app/Helpers/UserHelper.php b/app/Helpers/UserHelper.php
index 0f28f11..b92bba9 100644
--- a/app/Helpers/UserHelper.php
+++ b/app/Helpers/UserHelper.php
@@ -19,7 +19,7 @@ class UserHelper extends CommonHelper
         switch ($field) {
             case 'passwd':
             case 'confirmpassword':
-                $form = form_password($field, "", ["autocomplete" => $field, ...$extras]);
+                $form = form_password($field, "", ["id" => $field, ...$extras]);
                 break;
             default:
                 $form = parent::getFieldForm($field, $value, $viewDatas, $extras);
diff --git a/app/Views/templates/admin/form_content_top.php b/app/Views/templates/admin/form_content_top.php
index c99bff5..d93f8c7 100644
--- a/app/Views/templates/admin/form_content_top.php
+++ b/app/Views/templates/admin/form_content_top.php
@@ -1,9 +1,49 @@
   <link href="/css/<?= $viewDatas['layout'] ?>/form.css" media="screen" rel="stylesheet" type="text/css" />
   <script src="/js/<?= $viewDatas['layout'] ?>/form.js" referrerpolicy="origin"></script>
   <script src="/assets/tinymce/tinymce.min.js" referrerpolicy="origin"></script>
+  <link rel="stylesheet" href="/assets/tagify/dist/tagify.css">
+  <script src="/assets/tagify/dist/tagify.js"></script>
   <?php foreach ($viewDatas['individualStylesheets'] as $css): ?>
     <link href="/css/<?= $viewDatas['layout'] ?>/<?= $css ?>" media="screen" rel="stylesheet" type="text/css" />
   <?php endforeach ?>
   <?php foreach ($viewDatas['individualScripts'] as $js): ?>
     <script src="/js/<?= $viewDatas['layout'] ?>/<?= $js ?>" referrerpolicy="origin"></script>
-  <?php endforeach ?>
\ No newline at end of file
+  <?php endforeach ?>
+
+  <script>
+    const input = document.querySelector('#domain');
+    const errorBox = document.getElementById('domain-errors');
+
+    const tagify = new Tagify(input, {
+      enforceWhitelist: false, // 자유 입력 허용
+      whitelist: [], // 자동완성 후보
+      duplicates: false, // 중복 제거
+      delimiters: ", ", // 엔터나 콤마로 구분
+      pattern: /^[a-zA-Z0-9.-]+\.[a-z]{2,}$/ // 기본 도메인 형식
+    });
+
+    // ✅ 입력된 태그가 추가될 때 AJAX 검증
+    tagify.on('add', async e => {
+      const domain = e.detail.data.value;
+      // 서버로 도메인 유효성 검증 요청
+      const res = await fetch('/admin/equipment/part/domain/validate', {
+        method: 'POST',
+        headers: {
+          'Content-Type': 'application/json'
+        },
+        body: JSON.stringify({
+          domain
+        })
+      });
+
+      const result = await res.json();
+
+      if (!result.valid) {
+        // 유효하지 않으면 해당 태그 제거
+        tagify.removeTag(domain);
+        errorBox.innerText = `"${domain}" 은(는) 이미 등록되었거나 유효하지 않습니다.`;
+      } else {
+        errorBox.innerText = '';
+      }
+    });
+  </script>
\ No newline at end of file
diff --git a/public/assets/tagify b/public/assets/tagify
new file mode 160000
index 0000000..3c49093
--- /dev/null
+++ b/public/assets/tagify
@@ -0,0 +1 @@
+Subproject commit 3c49093fba26029602a5dc56676af3504e74dd3a