diff --git a/.beads/last-touched b/.beads/last-touched
index cdadab4..4dddbd8 100644
--- a/.beads/last-touched
+++ b/.beads/last-touched
@@ -1 +1 @@
-fotospiel-app-e05
+fotospiel-app-vel
diff --git a/docs/archive/prp/12-i18n.md b/docs/archive/prp/12-i18n.md
index b0ca103..e21ff4c 100644
--- a/docs/archive/prp/12-i18n.md
+++ b/docs/archive/prp/12-i18n.md
@@ -60,6 +60,20 @@
 - **Robots.txt**: Allow both locales; noindex for dev.
 - **Accessibility**: ARIA labels with `t()`; screen reader support for language switches.
 
+### SEO Implementation Notes (Marketing)
+- **Source of tags**: `resources/js/layouts/mainWebsite.tsx` renders canonical + hreflang links for Inertia marketing pages.
+- **URL building**: `resources/js/lib/localizedPath.ts` handles locale rewrites (e.g., `/kontakt` ↔ `/contact`) and prefixing.
+- **Data inputs**: `supportedLocales`, `locale`, and `appUrl` are shared via `app/Http/Middleware/HandleInertiaRequests.php`.
+- **SSR**: Inertia SSR is disabled (`config/inertia.php`), so canonical/hreflang tags are client-rendered.
+
+### Validation Checklist (Search Console + Lighthouse)
+- Verify canonical + hreflang output on key marketing pages (home, contact, packages, blog, occasions).
+- Use Search Console URL inspection to confirm rendered HTML contains canonical + hreflang tags.
+- Run Lighthouse SEO audit on both `/de/*` and `/en/*` routes (spot-check canonical + alternate links).
+
+### Tests
+- **Vitest**: `resources/js/layouts/__tests__/mainWebsite.seo.test.tsx` validates canonical/hreflang output and localized slug rewrites.
+
 ## Migration from PHP to JSON
 - Extract keys from `resources/lang/\{locale\}/marketing.php` to `public/lang/\{locale\}/marketing.json`.
 - Consolidate: Remove duplicates; use nested objects (e.g., `{ "header": { "login": "Anmelden" } }`).
diff --git a/docs/archive/prp/marketing-frontend-unification.md b/docs/archive/prp/marketing-frontend-unification.md
index ccda1dc..9e84c32 100644
--- a/docs/archive/prp/marketing-frontend-unification.md
+++ b/docs/archive/prp/marketing-frontend-unification.md
@@ -40,6 +40,7 @@ Ziel: Vollständige Migration zu Inertia.js für SPA-ähnliche Konsistenz, mit e
 - **Auth-Integration**: usePage().props.auth für CTAs (z.B. Login-Button im Header).
 - **Responsive Design**: Tailwind: block md:hidden für Mobile-Carousel in Packages.
 - **Fonts & Assets**: Vite-Plugin für Fonts/SVGs; preload in Layout.
+- **SEO (hreflang/canonical)**: `resources/js/layouts/mainWebsite.tsx` rendert canonical + hreflang auf Basis von `supportedLocales`, `locale`, `appUrl` und `resources/js/lib/localizedPath.ts` (Locale-Rewrites).
 - **Analytics (Matomo)**: Aktivierung via `.env` (`MATOMO_ENABLED=true`, `MATOMO_URL`, `MATOMO_SITE_ID`). `AppServiceProvider` teilt die Konfiguration als `analytics.matomo`; `MarketingLayout` rendert `MatomoTracker`, der das Snippet aus `/docs/piwik-trackingcode.txt` nur bei erteilter Analyse-Zustimmung lädt, `disableCookies` setzt und bei jedem Inertia-Navigationsevent `trackPageView` sendet. Ein lokalisierter Consent-Banner (DE/EN) übernimmt die DSGVO-konforme Einwilligung und ist über den Footer erneut erreichbar.
 - **Tests**: E2E mit Playwright (z.B. navigate to /packages, check header/footer presence).
 
diff --git a/resources/js/layouts/__tests__/mainWebsite.seo.test.tsx b/resources/js/layouts/__tests__/mainWebsite.seo.test.tsx
new file mode 100644
index 0000000..8767ae3
--- /dev/null
+++ b/resources/js/layouts/__tests__/mainWebsite.seo.test.tsx
@@ -0,0 +1,147 @@
+import React from 'react';
+import { describe, expect, it, vi } from 'vitest';
+import { render } from '@testing-library/react';
+
+const page = {
+  url: '/de/kontakt',
+  props: {
+    locale: 'de',
+    supportedLocales: ['de', 'en'],
+    appUrl: 'https://fotospiel.app',
+    translations: {
+      marketing: {
+        title: 'Fotospiel',
+        description: 'Sammle Gastfotos für Events mit QR-Codes',
+      },
+    },
+    auth: {},
+  },
+};
+
+vi.mock('react-i18next', () => ({
+  useTranslation: () => ({
+    t: (key: string, fallback?: string | { defaultValue?: unknown }) => {
+      if (typeof fallback === 'string') {
+        return fallback;
+      }
+      if (fallback && typeof fallback === 'object' && 'defaultValue' in fallback) {
+        return fallback.defaultValue;
+      }
+      return key;
+    },
+    i18n: {
+      language: 'de',
+      changeLanguage: vi.fn(),
+    },
+    ready: true,
+  }),
+}));
+
+vi.mock('@inertiajs/react', async () => {
+  const ReactModule = await import('react');
+  const ReactDom = await import('react-dom');
+  return {
+    Head: ({ children }: { children?: React.ReactNode }) =>
+      ReactDom.createPortal(children, document.head),
+    Link: ({ children, href }: { children: React.ReactNode; href: string }) => (
+      <a href={href}>{children}</a>
+    ),
+    router: {
+      post: vi.fn(),
+      visit: vi.fn(),
+    },
+    usePage: () => page,
+  };
+});
+
+vi.mock('@/components/analytics/MatomoTracker', () => ({
+  default: () => null,
+}));
+
+vi.mock('@/layouts/app/Footer', () => ({
+  default: () => null,
+}));
+
+vi.mock('@/hooks/use-appearance', () => ({
+  useAppearance: () => ({
+    appearance: 'light',
+    updateAppearance: vi.fn(),
+  }),
+}));
+
+vi.mock('@/components/ui/button', () => ({
+  Button: ({ children }: { children: React.ReactNode }) => <button type="button">{children}</button>,
+}));
+
+vi.mock('@/components/ui/dropdown-menu', () => ({
+  DropdownMenu: ({ children }: { children: React.ReactNode }) => <div>{children}</div>,
+  DropdownMenuContent: ({ children }: { children: React.ReactNode }) => <div>{children}</div>,
+  DropdownMenuItem: ({ children }: { children: React.ReactNode }) => <div>{children}</div>,
+  DropdownMenuLabel: ({ children }: { children: React.ReactNode }) => <div>{children}</div>,
+  DropdownMenuRadioGroup: ({ children }: { children: React.ReactNode }) => <div>{children}</div>,
+  DropdownMenuRadioItem: ({ children }: { children: React.ReactNode }) => <div>{children}</div>,
+  DropdownMenuSeparator: () => <div />,
+  DropdownMenuTrigger: ({ children }: { children: React.ReactNode }) => <div>{children}</div>,
+}));
+
+vi.mock('react-hot-toast', () => ({
+  default: {
+    success: vi.fn(),
+  },
+}));
+
+vi.mock('lucide-react', () => ({
+  MoreHorizontal: () => null,
+  Sun: () => null,
+  Moon: () => null,
+  Languages: () => null,
+  LayoutDashboard: () => null,
+  LogOut: () => null,
+  LogIn: () => null,
+}));
+
+import MarketingLayout from '../mainWebsite';
+
+describe('MarketingLayout SEO tags', () => {
+  it('renders canonical and hreflang links for the active locale', () => {
+    page.url = '/de/kontakt';
+    page.props.locale = 'de';
+
+    render(
+      <MarketingLayout title="Kontakt">
+        <div>Test</div>
+      </MarketingLayout>
+    );
+
+    const canonical = document.head.querySelector('link[rel="canonical"]');
+    const alternateDe = document.head.querySelector('link[rel="alternate"][hreflang="de"]');
+    const alternateEn = document.head.querySelector('link[rel="alternate"][hreflang="en"]');
+    const alternateDefault = document.head.querySelector('link[rel="alternate"][hreflang="x-default"]');
+
+    expect(canonical).toHaveAttribute('href', 'https://fotospiel.app/de/kontakt');
+    expect(alternateDe).toHaveAttribute('href', 'https://fotospiel.app/de/kontakt');
+    expect(alternateEn).toHaveAttribute('href', 'https://fotospiel.app/en/contact');
+    expect(alternateDefault).toHaveAttribute('href', 'https://fotospiel.app/de/kontakt');
+  });
+
+  it('preserves query params and rewrites localized slugs across locales', () => {
+    page.url = '/en/contact?ref=ad';
+    page.props.locale = 'en';
+
+    render(
+      <MarketingLayout title="Contact">
+        <div>Test</div>
+      </MarketingLayout>
+    );
+
+    const canonical = document.head.querySelector('link[rel="canonical"]');
+    const alternateDe = document.head.querySelector('link[rel="alternate"][hreflang="de"]');
+    const alternateEn = document.head.querySelector('link[rel="alternate"][hreflang="en"]');
+    const alternateDefault = document.head.querySelector('link[rel="alternate"][hreflang="x-default"]');
+
+    expect(canonical).toHaveAttribute('href', 'https://fotospiel.app/en/contact?ref=ad');
+    expect(alternateEn).toHaveAttribute('href', 'https://fotospiel.app/en/contact?ref=ad');
+    expect(alternateDe).toHaveAttribute('href', 'https://fotospiel.app/de/kontakt?ref=ad');
+    expect(alternateDefault).toHaveAttribute('href', 'https://fotospiel.app/de/kontakt?ref=ad');
+  });
+});