diff --git a/src/lib/storage.js b/src/lib/storage.js
index d047ac1..20063dd 100644
--- a/src/lib/storage.js
+++ b/src/lib/storage.js
@@ -21,7 +21,7 @@ const DEFAULT_SETTINGS = {
   secretScanning: true,
   maxLogEntries: 200,
   customDomains: [],
-  categories: ['name', 'email', 'phone', 'address', 'ssn', 'dob', 'general'],
+  categories: ['name', 'email', 'phone', 'address', 'ssn', 'dob', 'domain', 'general'],
 };
 
 const Storage = {
diff --git a/src/options/options.html b/src/options/options.html
index 4c9627d..c0f600a 100644
--- a/src/options/options.html
+++ b/src/options/options.html
@@ -102,6 +102,7 @@
           <option value="address">Address</option>
           <option value="ssn">SSN</option>
           <option value="dob">DOB</option>
+          <option value="domain">Domain</option>
           <option value="general">General</option>
         </select>
         <label class="checkbox-label">
diff --git a/src/popup/popup.html b/src/popup/popup.html
index bf9204e..6871f99 100644
--- a/src/popup/popup.html
+++ b/src/popup/popup.html
@@ -120,6 +120,7 @@
             <option value="address">Address</option>
             <option value="ssn">SSN</option>
             <option value="dob">DOB</option>
+            <option value="domain">Domain</option>
             <option value="general">General</option>
           </select>
           <label class="checkbox-label">