diff --git a/ui/src/components/layouts/Layouts.tsx b/ui/src/components/layouts/Layouts.tsx
index 702d1851..054fde96 100644
--- a/ui/src/components/layouts/Layouts.tsx
+++ b/ui/src/components/layouts/Layouts.tsx
@@ -14,6 +14,7 @@ import useDirection from '@/utils/hooks/useDirection'
 import useLocale from '@/utils/hooks/useLocale'
 import { useDynamicRoutes } from '@/routes/dynamicRoutesContext'
 import { useLocation } from 'react-router-dom'
+import { hasSubdomain } from '@/utils/subdomain'
 
 export type LayoutType =
   | typeof LAYOUT_TYPE_CLASSIC
@@ -65,7 +66,7 @@ const Layout = () => {
       return layouts[layoutType]
     }
 
-    if (route?.routeType === 'authenticated') {
+    if (route?.routeType === 'authenticated' || hasSubdomain()) {
       return AuthLayout
     }
 
diff --git a/ui/src/components/layouts/PublicLayout.tsx b/ui/src/components/layouts/PublicLayout.tsx
index ce14d5cb..ddd9c948 100644
--- a/ui/src/components/layouts/PublicLayout.tsx
+++ b/ui/src/components/layouts/PublicLayout.tsx
@@ -64,31 +64,31 @@ const PublicLayout = () => {
     {
       resourceKey: 'Public.nav.home',
       name: translate('::Public.nav.home'),
-      path: '/home',
+      path: ROUTES_ENUM.public.home,
       icon: Home,
     },
     {
       resourceKey: 'Public.nav.about',
       name: translate('::Public.nav.about'),
-      path: '/about',
+      path: ROUTES_ENUM.public.about,
       icon: Info,
     },
     {
       resourceKey: 'Public.nav.services',
       name: translate('::Public.nav.services'),
-      path: '/services',
+      path: ROUTES_ENUM.public.services,
       icon: Briefcase,
     },
     {
       resourceKey: 'Public.nav.products',
       name: translate('::Public.nav.products'),
-      path: '/products',
+      path: ROUTES_ENUM.public.products,
       icon: Package,
     },
     {
       resourceKey: 'Public.nav.blog',
       name: translate('::Public.nav.blog'),
-      path: '/blog',
+      path: ROUTES_ENUM.public.blog,
       icon: BookOpen,
     },
     {
@@ -100,10 +100,14 @@ const PublicLayout = () => {
     {
       resourceKey: 'Public.nav.contact',
       name: translate('::Public.nav.contact'),
-      path: '/contact',
+      path: ROUTES_ENUM.public.contact,
       icon: Phone,
     },
-    { resourceKey: 'Public.nav.giris', name: translate('::Public.nav.giris'), path: '/login' },
+    {
+      resourceKey: 'Public.nav.giris',
+      name: translate('::Public.nav.giris'),
+      path: ROUTES_ENUM.authenticated.login,
+    },
   ]
 
   const getNavItemClass = (resourceKey?: string) => {
diff --git a/ui/src/routes/dynamicRouter.tsx b/ui/src/routes/dynamicRouter.tsx
index 76cf0940..176f1fdd 100644
--- a/ui/src/routes/dynamicRouter.tsx
+++ b/ui/src/routes/dynamicRouter.tsx
@@ -7,6 +7,7 @@ import ProtectedRoute from '@/components/route/ProtectedRoute'
 import PermissionGuard from '@/components/route/PermissionGuard'
 import PageContainer from '@/components/template/PageContainer'
 import { ROUTES_ENUM } from './route.constant'
+import { hasSubdomain } from '@/utils/subdomain'
 
 export const DynamicRouter: React.FC = () => {
   const { routes, loading, error } = useDynamicRoutes()
@@ -18,7 +19,6 @@ export const DynamicRouter: React.FC = () => {
 
   return (
     <Routes>
-      {/* Protected Admin Routes */}
       <Route path="/admin/*" element={<ProtectedRoute />}>
         {dynamicRoutes
           .filter((r) => r.routeType === 'protected')
@@ -40,11 +40,9 @@ export const DynamicRouter: React.FC = () => {
               />
             )
           })}
-        {/* /admin -> /admin/home yönlendirmesi */}
         <Route index element={<Navigate to={ROUTES_ENUM.protected.dashboard} replace />} />
       </Route>
 
-      {/* Public Routes (dinamik) */}
       {dynamicRoutes
         .filter((r) => r.routeType !== 'protected')
         .map((route) => {
@@ -62,9 +60,16 @@ export const DynamicRouter: React.FC = () => {
           )
         })}
 
-      {/* / yönlendirmesi → /home */}
-      <Route path="/" element={<Navigate to="/home" replace />} />
-      
+      <Route
+        path="/"
+        element={
+          <Navigate
+            to={hasSubdomain() ? ROUTES_ENUM.authenticated.login : ROUTES_ENUM.public.home}
+            replace
+          />
+        }
+      />
+
       {/* Not Found */}
       <Route path="*" element={<NotFound />} />
     </Routes>
diff --git a/ui/src/utils/subdomain.ts b/ui/src/utils/subdomain.ts
new file mode 100644
index 00000000..ce806164
--- /dev/null
+++ b/ui/src/utils/subdomain.ts
@@ -0,0 +1,24 @@
+const defaultSubDomain = 'KURS'
+
+export const getSubdomain = (): string | null => {
+  if (typeof window === 'undefined') return null
+
+  const hostname = window.location.hostname
+  const parts = hostname.split('.')
+
+  // localhost veya normal domain ise subdomain yok
+  if (hostname === 'localhost' || parts.length < 3) {
+    return null
+  }
+
+  // Default subdomain ise null döndür
+  if (parts[0].toUpperCase() === defaultSubDomain) {
+    return null
+  }
+
+  return parts[0].toUpperCase()
+}
+
+export const hasSubdomain = (): boolean => {
+  return getSubdomain() !== null
+}
diff --git a/ui/src/views/auth/Login.tsx b/ui/src/views/auth/Login.tsx
index cf711a0b..e319ed57 100644
--- a/ui/src/views/auth/Login.tsx
+++ b/ui/src/views/auth/Login.tsx
@@ -20,6 +20,7 @@ import { motion } from 'framer-motion'
 import { useEffect, useRef, useState } from 'react'
 import { useNavigate } from 'react-router-dom'
 import * as Yup from 'yup'
+import { getSubdomain } from '@/utils/subdomain'
 
 type SignInFormSchema = {
   userName: string
@@ -67,24 +68,6 @@ const Login = () => {
 
   const defaultSubDomain = 'KURS'
 
-  const getSubdomain = () => {
-    if (typeof window === 'undefined') return null
-
-    const hostname = window.location.hostname
-
-    const parts = hostname.split('.')
-
-    if (hostname === 'localhost' || parts.length < 3) {
-      return null
-    }
-
-    if (parts[0].toUpperCase() === defaultSubDomain) {
-      return null
-    }
-
-    return parts[0].toUpperCase()
-  }
-
   const onSignIn = async (
     values: SignInFormSchema,
     { setSubmitting, isSubmitting, setFieldValue, setFieldTouched }: any,