diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index d7094d5..61937bb 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -73,12 +73,6 @@ yarn lint
 yarn types
 ```
 
-To fix the issues automatically, you can run the following command:
-
-```bash
-yarn fix:fmt
-```
-
 # Releasing
 
 Once all the changes are merged into main branch, run the following command to release a new version:
diff --git a/playground/error.vue b/playground/error.vue
new file mode 100644
index 0000000..08e14bd
--- /dev/null
+++ b/playground/error.vue
@@ -0,0 +1,46 @@
+<script setup lang="ts">
+import { useSanctumAuth } from '#imports';
+
+interface ErrorProps {
+    error?: {
+        url: string;
+        statusCode: number;
+        statusMessage: string;
+        message: string;
+        description: string;
+        data?: any;
+    };
+}
+
+const props = defineProps<ErrorProps>();
+
+const { isAuthenticated, logout } = useSanctumAuth();
+</script>
+
+<template>
+    <NuxtLoadingIndicator />
+
+    <h1>Nuxt - Laravel Sanctum application sample</h1>
+
+    <nav class="menu">
+        <NuxtLink to="/">Home</NuxtLink>
+        <NuxtLink to="/login">Login</NuxtLink>
+        <NuxtLink to="/logout">Logout</NuxtLink>
+        <NuxtLink to="/profile">Profile</NuxtLink>
+        <NuxtLink to="/welcome">Welcome</NuxtLink>
+
+        <button v-if="isAuthenticated" @click="logout">Logout</button>
+    </nav>
+
+    <hr />
+
+    <strong>Error</strong>
+    <p>{{ props.error }}</p>
+</template>
+
+<style scoped>
+.menu {
+    display: flex;
+    gap: 1rem;
+}
+</style>
diff --git a/playground/tsconfig.json b/playground/tsconfig.json
index b575a24..f5f754b 100644
--- a/playground/tsconfig.json
+++ b/playground/tsconfig.json
@@ -1,3 +1,4 @@
 {
     "extends": "./.nuxt/tsconfig.json",
+    "exclude": ["../dist"],
 }
diff --git a/src/index.d.ts b/src/index.d.ts
index cc7e98e..dd4e37e 100644
--- a/src/index.d.ts
+++ b/src/index.d.ts
@@ -5,3 +5,9 @@ declare module 'nuxt/schema' {
         sanctum: Partial<SanctumModuleOptions>;
     }
 }
+
+declare module '#app' {
+    interface PageMeta {
+        excludeFromSanctum?: boolean;
+    }
+}
diff --git a/src/module.ts b/src/module.ts
index be66eb1..70dc799 100644
--- a/src/module.ts
+++ b/src/module.ts
@@ -8,7 +8,11 @@ import {
 import { defu } from 'defu';
 import type { SanctumModuleOptions } from './types';
 
-export default defineNuxtModule<Partial<SanctumModuleOptions>>({
+type DeepPartial<T> = {
+    [P in keyof T]?: T[P] extends object ? DeepPartial<T[P]> : T[P];
+};
+
+export default defineNuxtModule<DeepPartial<SanctumModuleOptions>>({
     meta: {
         name: 'nuxt-auth-sanctum',
         configKey: 'sanctum',
@@ -40,30 +44,40 @@ export default defineNuxtModule<Partial<SanctumModuleOptions>>({
             onAuthOnly: '/login',
             onGuestOnly: '/',
         },
+        globalMiddleware: {
+            enabled: false,
+            allow404WithoutAuth: true,
+        },
     },
 
     setup(options, nuxt) {
         const resolver = createResolver(import.meta.url);
 
-        const publicConfig = nuxt.options.runtimeConfig.public;
-        const userModuleConfig = publicConfig.sanctum;
-
-        nuxt.options.runtimeConfig.public.sanctum = defu(
-            userModuleConfig as any,
-            options
-        );
+        const runtimeConfigOverrides =
+            nuxt.options.runtimeConfig.public.sanctum;
 
-        addImportsDir(resolver.resolve('./runtime/composables'));
+        const sanctumConfig = defu(runtimeConfigOverrides as any, options);
 
-        addRouteMiddleware({
-            name: 'sanctum:auth',
-            path: resolver.resolve('./runtime/middleware/sanctum.auth'),
-        });
-        addRouteMiddleware({
-            name: 'sanctum:guest',
-            path: resolver.resolve('./runtime/middleware/sanctum.guest'),
-        });
+        nuxt.options.runtimeConfig.public.sanctum = sanctumConfig;
 
         addPlugin(resolver.resolve('./runtime/plugin'));
+        addImportsDir(resolver.resolve('./runtime/composables'));
+
+        if (sanctumConfig.globalMiddleware.enabled) {
+            addRouteMiddleware({
+                name: 'sanctum:auth:global',
+                path: resolver.resolve('./runtime/middleware/sanctum.global'),
+                global: true,
+            });
+        } else {
+            addRouteMiddleware({
+                name: 'sanctum:auth',
+                path: resolver.resolve('./runtime/middleware/sanctum.auth'),
+            });
+            addRouteMiddleware({
+                name: 'sanctum:guest',
+                path: resolver.resolve('./runtime/middleware/sanctum.guest'),
+            });
+        }
     },
 });
diff --git a/src/runtime/httpFactory.ts b/src/runtime/httpFactory.ts
index 2945ec6..5ab71fd 100644
--- a/src/runtime/httpFactory.ts
+++ b/src/runtime/httpFactory.ts
@@ -3,14 +3,17 @@ import {
     useCookie,
     useRequestEvent,
     useRequestHeaders,
+    useRequestURL,
     navigateTo,
     useNuxtApp,
 } from '#app';
 import { useSanctumUser } from './composables/useSanctumUser';
-import { useRequestURL } from 'nuxt/app';
 import { useSanctumConfig } from './composables/useSanctumConfig';
 
-export const SECURE_METHODS = new Set(['post', 'delete', 'put', 'patch']);
+type Headers = HeadersInit | undefined;
+
+const SECURE_METHODS = new Set(['post', 'delete', 'put', 'patch']);
+const COOKIE_OPTIONS: { readonly: true } = { readonly: true };
 
 export function createHttpClient(): $Fetch {
     const options = useSanctumConfig();
@@ -23,17 +26,13 @@ export function createHttpClient(): $Fetch {
      * @param headers Headers collection to extend
      * @returns {HeadersInit}
      */
-    async function buildClientHeaders(
-        headers: HeadersInit | undefined
-    ): Promise<HeadersInit> {
+    async function buildClientHeaders(headers: Headers): Promise<HeadersInit> {
         await $fetch(options.endpoints.csrf, {
             baseURL: options.baseUrl,
             credentials: 'include',
         });
 
-        const csrfToken = useCookie(options.csrf.cookie, {
-            readonly: true,
-        }).value;
+        const csrfToken = useCookie(options.csrf.cookie, COOKIE_OPTIONS).value;
 
         return {
             ...headers,
@@ -46,10 +45,8 @@ export function createHttpClient(): $Fetch {
      * @param headers Headers collection to extend
      * @returns { HeadersInit }
      */
-    function buildServerHeaders(headers: HeadersInit | undefined): HeadersInit {
-        const csrfToken = useCookie(options.csrf.cookie, {
-            readonly: true,
-        }).value;
+    function buildServerHeaders(headers: Headers): HeadersInit {
+        const csrfToken = useCookie(options.csrf.cookie, COOKIE_OPTIONS).value;
         const clientCookies = useRequestHeaders(['cookie']);
         const origin = options.origin ?? useRequestURL().origin;
 
@@ -123,7 +120,8 @@ export function createHttpClient(): $Fetch {
                 if (
                     options.redirect.onLogout === false ||
                     options.redirect.onLogout === currentRoute.path ||
-                    options.redirect.onAuthOnly === currentRoute.path
+                    options.redirect.onAuthOnly === currentRoute.path ||
+                    options.globalMiddleware.enabled === true
                 ) {
                     return;
                 }
diff --git a/src/runtime/middleware/sanctum.auth.ts b/src/runtime/middleware/sanctum.auth.ts
index 7aa8593..68b1aab 100644
--- a/src/runtime/middleware/sanctum.auth.ts
+++ b/src/runtime/middleware/sanctum.auth.ts
@@ -1,15 +1,13 @@
 import { defineNuxtRouteMiddleware, navigateTo, createError } from '#app';
 import type { RouteLocationRaw } from 'vue-router';
-import { useSanctumUser } from '../composables/useSanctumUser';
 import { useSanctumConfig } from '../composables/useSanctumConfig';
+import { useSanctumAuth } from '../composables/useSanctumAuth';
 
 export default defineNuxtRouteMiddleware((to) => {
-    const user = useSanctumUser();
     const options = useSanctumConfig();
+    const { isAuthenticated } = useSanctumAuth();
 
-    const isAuthenticated = user.value !== null;
-
-    if (isAuthenticated === true) {
+    if (isAuthenticated.value === true) {
         return;
     }
 
diff --git a/src/runtime/middleware/sanctum.global.ts b/src/runtime/middleware/sanctum.global.ts
new file mode 100644
index 0000000..9a81e67
--- /dev/null
+++ b/src/runtime/middleware/sanctum.global.ts
@@ -0,0 +1,53 @@
+import { defineNuxtRouteMiddleware, navigateTo } from '#app';
+import type { RouteLocationRaw } from 'vue-router';
+import { useSanctumConfig } from '../composables/useSanctumConfig';
+import { useSanctumAuth } from '../composables/useSanctumAuth';
+
+export default defineNuxtRouteMiddleware((to) => {
+    const options = useSanctumConfig();
+    const { isAuthenticated } = useSanctumAuth();
+
+    const [homePage, loginPage] = [
+        options.redirect.onGuestOnly,
+        options.redirect.onAuthOnly,
+    ];
+
+    if (homePage === false) {
+        throw new Error(
+            'You must define onGuestOnly route when using global middleware.'
+        );
+    }
+
+    if (loginPage === false) {
+        throw new Error(
+            'You must define onAuthOnly route when using global middleware.'
+        );
+    }
+
+    if (isAuthenticated.value === true) {
+        if (to.path === loginPage) {
+            return navigateTo(homePage, { replace: true });
+        }
+
+        return;
+    }
+
+    if (to.path === loginPage || to.meta.excludeFromSanctum === true) {
+        return;
+    }
+
+    if (
+        options.globalMiddleware.allow404WithoutAuth &&
+        to.matched.length === 0
+    ) {
+        return;
+    }
+
+    const redirect: RouteLocationRaw = { path: loginPage };
+
+    if (options.redirect.keepRequestedRoute) {
+        redirect.query = { redirect: to.fullPath };
+    }
+
+    return navigateTo(redirect, { replace: true });
+});
diff --git a/src/runtime/middleware/sanctum.guest.ts b/src/runtime/middleware/sanctum.guest.ts
index de44768..432c878 100644
--- a/src/runtime/middleware/sanctum.guest.ts
+++ b/src/runtime/middleware/sanctum.guest.ts
@@ -1,14 +1,12 @@
 import { defineNuxtRouteMiddleware, navigateTo, createError } from '#app';
+import { useSanctumAuth } from '../composables/useSanctumAuth';
 import { useSanctumConfig } from '../composables/useSanctumConfig';
-import { useSanctumUser } from '../composables/useSanctumUser';
 
 export default defineNuxtRouteMiddleware(() => {
-    const user = useSanctumUser();
     const options = useSanctumConfig();
+    const { isAuthenticated } = useSanctumAuth();
 
-    const isAuthenticated = user.value !== null;
-
-    if (isAuthenticated === false) {
+    if (isAuthenticated.value === false) {
         return;
     }
 
diff --git a/src/types.ts b/src/types.ts
index c8f9a55..019c328 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -74,6 +74,20 @@ export interface RedirectOptions {
     onGuestOnly: string | false;
 }
 
+/**
+ * Configuration of the global application-wide middleware.
+ */
+export interface GlobalMiddlewareOptions {
+    /**
+     * Determines whether the global middleware is enabled.
+     */
+    enabled: boolean;
+    /**
+     * Determines whether to allow 404 pages without authentication.
+     */
+    allow404WithoutAuth: boolean;
+}
+
 /**
  * Options to be passed to the plugin.
  */
@@ -110,4 +124,8 @@ export interface SanctumModuleOptions {
      * Behavior of the plugin redirects when user is authenticated or not.
      */
     redirect: RedirectOptions;
+    /**
+     * Behavior of the global middleware.
+     */
+    globalMiddleware: GlobalMiddlewareOptions;
 }
diff --git a/tsconfig.json b/tsconfig.json
index 4fd07c0..6966e2e 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,10 +1,4 @@
 {
     "extends": "./.nuxt/tsconfig.json",
-    "exclude": [
-        "./node_modules",
-        "./node_modules/nuxt/node_modules",
-        "./dist",
-        "./.output",
-        "./playground",
-    ],
+    "exclude": ["./node_modules", "./dist", "./playground"],
 }