diff --git a/CHANGELOG.md b/CHANGELOG.md
index 367e1ef..da6dc99 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+## v1.33.0
+- feat: Add SSO-style error page (404/500) for browser navigation instead of a bare JSON/text response
+- feat: DNS page is now admin-only (hidden from non-admins; API already admin-gated)
+- feat: navbar — username no longer underlined; only the active link is bold + underlined
+
 ## v1.13.3
 - fix: remove missing DEPLOYMENT.md and docs/ from Docker build context
 
diff --git a/nodejs/app.js b/nodejs/app.js
index 1652b01..2564865 100755
--- a/nodejs/app.js
+++ b/nodejs/app.js
@@ -21,6 +21,8 @@ module.exports = app;
 
 // Hold onto the auth middleware 
 const middleware = require('./middleware/auth');
+const conf = require('@simpleworkjs/conf');
+const buildInfo = require('./utils/build_info');
 
 // Grab the projects PubSub
 app.contoller = require('./controller');
@@ -115,6 +117,19 @@ app.use(async function(err, req, res, next) {
     res.status(status);
     // Only expose safe, non-internal fields to the client.
     const body = { name: err.name, message: err.message };
+    // Browser navigation gets the HTML error page (shared with SSO); API
+    // clients get JSON.
+    if (req.accepts('html') && !req.originalUrl.startsWith('/api/')) {
+      res.render('error', {
+        title: conf.environment !== 'production' ? 'dev' : '',
+        titleIcon: conf.environment !== 'production' ? '<i class="fa-brands fa-dev"></i>' : '',
+        name: conf.name,
+        logo: conf.logo,
+        ...buildInfo,
+        error: err,
+      });
+      return;
+    }
     res.json(body);
   }catch(error){
     console.error('error in the catch-all error handler', error);
diff --git a/nodejs/public/css/styles.css b/nodejs/public/css/styles.css
index 7065eae..fd0dde2 100755
--- a/nodejs/public/css/styles.css
+++ b/nodejs/public/css/styles.css
@@ -3,6 +3,12 @@ nav.navbar{
 	padding-right: 1em;
 }
 
+/* Only the active top-nav link is bold + underlined; the username is plain. */
+.top-nav a.active{
+	font-weight: bold;
+	text-decoration: underline;
+}
+
 body {
 	display: flex;
 	flex-direction: column;
diff --git a/nodejs/utils/ui.js b/nodejs/utils/ui.js
index 8197992..5093d60 100644
--- a/nodejs/utils/ui.js
+++ b/nodejs/utils/ui.js
@@ -37,7 +37,7 @@ module.exports = {
 	// in (plus the synthetic `admin` group when user/me reports isAdmin).
 	nav: [
 		{href: '/hosts', icon: 'fa-solid fa-network-wired', label: 'Hosts', groups: []},
-		{href: '/dns', icon: 'fa-solid fa-record-vinyl', label: 'DNS', groups: []},
+		{href: '/dns', icon: 'fa-solid fa-record-vinyl', label: 'DNS', groups: ['admin']},
 		{href: '/permissions', icon: 'fa-solid fa-user-shield', label: 'Permissions', groups: ['admin']},
 		{href: '/groups', icon: 'fa-solid fa-users-gear', label: 'Groups', groups: ['admin']},
 	],
diff --git a/nodejs/views/dns.ejs b/nodejs/views/dns.ejs
index 4cfeab1..f4b0803 100644
--- a/nodejs/views/dns.ejs
+++ b/nodejs/views/dns.ejs
@@ -1,7 +1,7 @@
 <%- include('top') %>
 <script type="text/javascript">
-	// Require login to see this page.
-	app.auth.forceLogin();
+	// Require an admin to see this page.
+	app.auth.forceLogin(['admin']);
 </script>
 
 <style type="text/css">
diff --git a/nodejs/views/error.ejs b/nodejs/views/error.ejs
new file mode 100644
index 0000000..03fdca4
--- /dev/null
+++ b/nodejs/views/error.ejs
@@ -0,0 +1,25 @@
+<%- include('top') %>
+
+<div class="container mt-5">
+  <div class="row justify-content-center">
+    <div class="col-md-6 text-center">
+      <div class="mb-4">
+        <i class="fa-solid fa-triangle-exclamation text-warning" style="font-size: 4rem;"></i>
+      </div>
+      <h1 class="display-4 fw-bold text-dark"><%= error.status || 500 %></h1>
+      <h3 class="mb-3 text-secondary"><%= error.message || 'Something went wrong' %></h3>
+      <p class="text-muted mb-4">
+        <% if (error.status === 404) { %>
+          The page you are looking for doesn't exist or has been moved.
+        <% } else { %>
+          An unexpected error occurred. Please try again later.
+        <% } %>
+      </p>
+      <a href="/" class="btn btn-primary shadow-sm px-4 py-2">
+        <i class="fa-solid fa-house me-2"></i>Return to Home
+      </a>
+    </div>
+  </div>
+</div>
+
+<%- include('bottom') %>
diff --git a/nodejs/views/top.ejs b/nodejs/views/top.ejs
index 0ea839c..aaeb960 100755
--- a/nodejs/views/top.ejs
+++ b/nodejs/views/top.ejs
@@ -49,7 +49,7 @@
 				</ul>
 				<div class="form-inline mt-2 mt-md-0">
 					<% if(ui.profileUrl){ %>
-					<a id="cl-username" class="navbar-text text-light me-3" href="<%- ui.profileUrl %>" style="display: none;">
+					<a id="cl-username" class="navbar-text text-light me-3 text-decoration-none" href="<%- ui.profileUrl %>" style="display: none;">
 						<i class="fa-solid fa-user me-1"></i><span id="cl-username-text"></span>
 					</a>
 					<% } else { %>