diff --git a/apps/web/app/(app)/layout.tsx b/apps/web/app/(app)/layout.tsx
index 82baa5a..a63a92e 100644
--- a/apps/web/app/(app)/layout.tsx
+++ b/apps/web/app/(app)/layout.tsx
@@ -1,4 +1,6 @@
+import Link from 'next/link';
 import { BottomNav } from '../../components/bottom-nav';
+import { BrandLockup } from '../../components/brand';
 
 /**
  * The signed-in app shell: a narrow reading column and the bottom nav.
@@ -9,10 +11,19 @@ import { BottomNav } from '../../components/bottom-nav';
 export default function AppLayout({ children }: { children: React.ReactNode }) {
   return (
     <>
+      {/*
+       * A slim brand row, not a title bar: every page already owns its own <h1>,
+       * so this stays one line tall and only says which app you are in — the
+       * thing an installed PWA loses when the browser chrome goes away.
+       */}
+      <div className="mx-auto w-full max-w-2xl px-4 pt-[env(safe-area-inset-top)]">
+        <Link href="/today" aria-label="OutreachGraph home" className="inline-flex py-3">
+          <BrandLockup height="h-6" text="text-[15px]" />
+        </Link>
+      </div>
+
       {/* pb-28 reserves room for the fixed bottom nav plus the home indicator. */}
-      <main className="mx-auto w-full max-w-2xl px-4 pt-[env(safe-area-inset-top)] pb-28">
-        {children}
-      </main>
+      <main className="mx-auto w-full max-w-2xl px-4 pb-28">{children}</main>
       <BottomNav />
     </>
   );
diff --git a/apps/web/app/(marketing)/login/page.tsx b/apps/web/app/(marketing)/login/page.tsx
index acf4ed2..2f4c836 100644
--- a/apps/web/app/(marketing)/login/page.tsx
+++ b/apps/web/app/(marketing)/login/page.tsx
@@ -1,4 +1,5 @@
 import { LoginForm } from '../../../components/login-form';
+import { BrandLockup } from '../../../components/brand';
 
 export const metadata = { title: 'Sign in · OutreachGraph' };
 
@@ -6,7 +7,10 @@ export default function LoginPage() {
   return (
     <div className="flex min-h-[80dvh] flex-col justify-center">
       <header className="mb-6">
-        <h1 className="text-2xl font-semibold">OutreachGraph</h1>
+        {/* The lockup is the heading here, so it carries the h1 rather than sitting above one. */}
+        <h1>
+          <BrandLockup height="h-9" text="text-2xl" />
+        </h1>
         <p className="text-ink-muted mt-1 text-sm">
           Turn public intent signals into warm conversations.
         </p>
diff --git a/apps/web/app/(marketing)/page.tsx b/apps/web/app/(marketing)/page.tsx
index 394f4b1..d4d97f6 100644
--- a/apps/web/app/(marketing)/page.tsx
+++ b/apps/web/app/(marketing)/page.tsx
@@ -1,6 +1,7 @@
 import Link from 'next/link';
 import { redirect } from 'next/navigation';
 import { cookies } from 'next/headers';
+import { BrandLockup, BrandMark, BrandWordmark } from '../../components/brand';
 
 export const dynamic = 'force-dynamic';
 
@@ -53,7 +54,9 @@ function SiteNav() {
   return (
     <Band>
       <nav className="flex items-center justify-between py-5">
-        <span className="text-[17px] font-bold tracking-tight">OutreachGraph</span>
+        <Link href="/" aria-label="OutreachGraph home">
+          <BrandLockup height="h-8" />
+        </Link>
         <Link
           href="/login"
           className="border-border rounded-xl border px-4 py-2.5 text-sm font-medium"
@@ -228,6 +231,9 @@ function RefusalSection() {
 function ClosingCta() {
   return (
     <Band className="bg-ink py-16 text-center text-white sm:py-20">
+      {/* This band is `bg-ink` in both themes, so the wordmark is safe here. */}
+      <BrandWordmark className="mx-auto mb-7 h-9 w-auto sm:h-11" />
+
       <h2 className="text-[28px] leading-tight font-semibold tracking-[-0.025em] text-balance sm:text-[34px]">
         Find the people already talking about your problem.
       </h2>
@@ -248,7 +254,9 @@ function SiteFooter() {
   return (
     <Band className="border-border border-t py-8">
       <div className="text-ink-muted flex flex-wrap items-center justify-between gap-3 text-[13px]">
-        <span>© {new Date().getFullYear()} OutreachGraph</span>
+        <span className="inline-flex items-center gap-2">
+          <BrandMark className="h-5 w-5" />© {new Date().getFullYear()} OutreachGraph
+        </span>
         <span>No LinkedIn automation. Suppression survives deletion.</span>
       </div>
     </Band>
diff --git a/apps/web/app/(marketing)/verify/page.tsx b/apps/web/app/(marketing)/verify/page.tsx
index 16c454d..4096be5 100644
--- a/apps/web/app/(marketing)/verify/page.tsx
+++ b/apps/web/app/(marketing)/verify/page.tsx
@@ -1,4 +1,5 @@
 import { VerifyForm } from '../../../components/verify-form';
+import { BrandLockup } from '../../../components/brand';
 
 export const dynamic = 'force-dynamic';
 
@@ -20,6 +21,7 @@ export default async function VerifyPage({
 
   return (
     <div className="mx-auto flex max-w-sm flex-col gap-4 pt-12">
+      <BrandLockup height="h-7" />
       <h1 className="text-xl font-semibold">Confirm your email</h1>
       <VerifyForm token={token ?? ''} />
     </div>
diff --git a/apps/web/app/layout.tsx b/apps/web/app/layout.tsx
index 3cb8821..ad50fb4 100644
--- a/apps/web/app/layout.tsx
+++ b/apps/web/app/layout.tsx
@@ -38,10 +38,48 @@ const mono = localFont({
   variable: '--font-plex-mono',
 });
 
+/**
+ * Absolute base for the social card URLs below.
+ *
+ * Indexed with a non-literal key for the same reason `lib/api.ts` does it: Next
+ * inlines `process.env.SOME_NAME` at build time, so a variable that only exists
+ * on Railway would otherwise be frozen as `undefined` in the image.
+ */
+function siteUrl(): URL {
+  const key = 'PUBLIC_SITE_URL';
+  return new URL(process.env[key] ?? 'https://outreachgraph.com');
+}
+
 export const metadata: Metadata = {
+  metadataBase: siteUrl(),
   title: 'OutreachGraph',
   description: 'Turn public intent signals into warm conversations.',
   applicationName: 'OutreachGraph',
+  /*
+   * `favicon.png` is the graph mark on transparency — it is the only asset that
+   * reads on a light tab strip and a dark one, which is why it is the icon
+   * everywhere rather than `logo.png`. The wordmark is white on the left half
+   * and would show as "Graph" alone at 16px on white.
+   */
+  icons: {
+    icon: [{ url: '/favicon.png', type: 'image/png', sizes: '512x512' }],
+    shortcut: ['/favicon.png'],
+    apple: [{ url: '/favicon.png', sizes: '512x512' }],
+  },
+  openGraph: {
+    type: 'website',
+    siteName: 'OutreachGraph',
+    title: 'OutreachGraph',
+    description: 'Turn public intent signals into warm conversations.',
+    url: '/',
+    images: [{ url: '/favicon.png', width: 512, height: 512, alt: 'OutreachGraph' }],
+  },
+  twitter: {
+    card: 'summary',
+    title: 'OutreachGraph',
+    description: 'Turn public intent signals into warm conversations.',
+    images: [{ url: '/favicon.png', width: 512, height: 512, alt: 'OutreachGraph' }],
+  },
   appleWebApp: {
     capable: true,
     title: 'OutreachGraph',
diff --git a/apps/web/app/manifest.ts b/apps/web/app/manifest.ts
index b282905..9753e22 100644
--- a/apps/web/app/manifest.ts
+++ b/apps/web/app/manifest.ts
@@ -18,6 +18,15 @@ export default function manifest(): MetadataRoute.Manifest {
     background_color: '#0b0f17',
     theme_color: '#0b0f17',
     categories: ['business', 'productivity'],
+    /*
+     * The SVGs stay first for the browsers that take them, but Android's
+     * installer and most splash-screen generators still want a raster icon with
+     * a declared pixel size, so `favicon.png` is listed alongside them.
+     *
+     * It is not offered as `maskable`: the mark runs edge to edge on its canvas,
+     * and a maskable icon gets cropped to whatever shape the launcher uses. The
+     * padded SVG keeps that job.
+     */
     icons: [
       {
         src: '/icons/icon.svg',
@@ -25,6 +34,12 @@ export default function manifest(): MetadataRoute.Manifest {
         type: 'image/svg+xml',
         purpose: 'any',
       },
+      {
+        src: '/favicon.png',
+        sizes: '512x512',
+        type: 'image/png',
+        purpose: 'any',
+      },
       {
         src: '/icons/icon-maskable.svg',
         sizes: 'any',
diff --git a/apps/web/app/offline/page.tsx b/apps/web/app/offline/page.tsx
index 3fc2753..ea275e7 100644
--- a/apps/web/app/offline/page.tsx
+++ b/apps/web/app/offline/page.tsx
@@ -1,3 +1,5 @@
+import { BrandMark } from '../../components/brand';
+
 export const metadata = { title: 'Offline · OutreachGraph' };
 
 /**
@@ -10,6 +12,8 @@ export const metadata = { title: 'Offline · OutreachGraph' };
 export default function OfflinePage() {
   return (
     <div className="flex min-h-[70dvh] flex-col items-center justify-center text-center">
+      {/* Pre-cached with this page by the service worker, so it renders with no network. */}
+      <BrandMark className="mb-4 h-12 w-12 opacity-60" />
       <h1 className="text-xl font-semibold">You are offline</h1>
       <p className="text-ink-muted mt-2 max-w-xs text-sm">
         Prospect data and the approval queue need a connection — approvals are never served from a
diff --git a/apps/web/components/brand.tsx b/apps/web/components/brand.tsx
new file mode 100644
index 0000000..d124f0f
--- /dev/null
+++ b/apps/web/components/brand.tsx
@@ -0,0 +1,56 @@
+/**
+ * The brand lockup, in the two forms the assets actually support.
+ *
+ * `logo.png` sets "Outreach" in white and "Graph" in blue, so the full wordmark
+ * reads on the dark theme and half of it vanishes on the light one. That is why
+ * `BrandLockup` swaps: dark surfaces get the wordmark, light surfaces get the
+ * mark from `favicon.png` beside live text — which is also what shows if the
+ * image never arrives.
+ *
+ * Plain `<img>`, not `next/image`: the runtime optimiser needs `sharp`, which
+ * this workspace does not install, and the standalone build in docker/Dockerfile
+ * would 500 on the first request for an optimised asset.
+ *
+ * The intrinsic sizes below are the real pixel dimensions of the two files. They
+ * are here so the browser reserves the right box before the image loads.
+ */
+
+const WORDMARK = { src: '/logo.png', width: 1007, height: 256 } as const;
+const MARK = { src: '/favicon.png', width: 512, height: 512 } as const;
+
+/** The graph mark alone — the one asset that reads on any background. */
+export function BrandMark({ className = 'h-7 w-7' }: { className?: string }) {
+  return <img {...MARK} alt="" aria-hidden className={className} />;
+}
+
+/** The full wordmark. Dark surfaces only, for the reason above. */
+export function BrandWordmark({ className = 'h-7 w-auto' }: { className?: string }) {
+  return <img {...WORDMARK} alt="OutreachGraph" className={className} />;
+}
+
+/**
+ * Safe anywhere the surface follows the colour scheme.
+ *
+ * Only one branch is ever rendered, so assistive technology sees a single
+ * "OutreachGraph" rather than two.
+ */
+export function BrandLockup({
+  className = '',
+  height = 'h-7',
+  text = 'text-[17px]',
+}: {
+  className?: string;
+  height?: string;
+  text?: string;
+}) {
+  return (
+    <span className={`inline-flex items-center ${className}`}>
+      <BrandWordmark className={`hidden w-auto dark:block ${height}`} />
+
+      <span className="inline-flex items-center gap-2 dark:hidden">
+        <BrandMark className={`aspect-square w-auto ${height}`} />
+        <span className={`font-bold tracking-tight ${text}`}>OutreachGraph</span>
+      </span>
+    </span>
+  );
+}
diff --git a/apps/web/public/favicon.png b/apps/web/public/favicon.png
index 4bf75f4..ad8e217 100644
Binary files a/apps/web/public/favicon.png and b/apps/web/public/favicon.png differ
diff --git a/apps/web/public/logo.png b/apps/web/public/logo.png
index 5aa1594..52b7394 100644
Binary files a/apps/web/public/logo.png and b/apps/web/public/logo.png differ
diff --git a/apps/web/public/sw.js b/apps/web/public/sw.js
index 77a048b..c1d1f21 100644
--- a/apps/web/public/sw.js
+++ b/apps/web/public/sw.js
@@ -11,13 +11,15 @@
  *      error page.
  */
 
-const VERSION = 'v1';
+const VERSION = 'v2';
 const SHELL_CACHE = `og-shell-${VERSION}`;
 const ASSET_CACHE = `og-assets-${VERSION}`;
 
-// The public landing page and the offline fallback. `/today` is deliberately
-// absent: it is per-user and must never be served from a shared cache.
-const SHELL = ['/', '/offline'];
+// The public landing page and the offline fallback, plus the two brand assets
+// those pages render — an offline screen that renders a broken image is worse
+// than the browser error it replaces. `/today` is deliberately absent: it is
+// per-user and must never be served from a shared cache.
+const SHELL = ['/', '/offline', '/favicon.png', '/logo.png'];
 
 self.addEventListener('install', (event) => {
   event.waitUntil(
diff --git a/packages/email/src/mailer.test.ts b/packages/email/src/mailer.test.ts
index 822069c..dd0c06a 100644
--- a/packages/email/src/mailer.test.ts
+++ b/packages/email/src/mailer.test.ts
@@ -100,4 +100,17 @@ describe('verificationEmail', () => {
     expect(message.html).not.toContain('<script>');
     expect(message.html).toContain('&lt;script&gt;');
   });
+
+  test('the brand mark is served from the same origin as the link', async () => {
+    const message = verificationEmail('a@b.com', 'https://og.com/verify?token=xyz');
+
+    expect(message.html).toContain('src="https://og.com/favicon.png"');
+  });
+
+  test('a link that is not an absolute url still produces a sendable message', async () => {
+    const message = verificationEmail('a@b.com', '/verify?token=xyz');
+
+    expect(message.html).not.toContain('<img');
+    expect(message.text).toContain('/verify?token=xyz');
+  });
 });
diff --git a/packages/email/src/templates.ts b/packages/email/src/templates.ts
index f3a1be3..a54931d 100644
--- a/packages/email/src/templates.ts
+++ b/packages/email/src/templates.ts
@@ -8,6 +8,26 @@ function escapeHtml(value: string): string {
     .replace(/"/g, '&quot;');
 }
 
+/**
+ * The brand mark, as an absolute URL on the same origin the link points at.
+ *
+ * Derived rather than configured, so there is no second base-URL setting to
+ * drift out of sync with the one that builds the verification link. `logo.png`
+ * is deliberately not used here: its "Outreach" is white, and mail clients
+ * compose on white.
+ *
+ * Returns undefined for anything that is not a parseable absolute URL — a
+ * relative link in a test or a local run should still produce a sendable
+ * message, just without the image.
+ */
+function markUrl(link: string): string | undefined {
+  try {
+    return new URL('/favicon.png', link).toString();
+  } catch {
+    return undefined;
+  }
+}
+
 /**
  * The verification email.
  *
@@ -28,8 +48,15 @@ export function verificationEmail(to: string, link: string): Message {
   ].join('\n');
 
   const safe = escapeHtml(link);
+  const mark = markUrl(link);
 
   const html = [
+    // Sized in the attributes as well as the style, because Outlook ignores CSS
+    // on images and would otherwise draw this at its full 512px.
+    mark
+      ? `<p><img src="${escapeHtml(mark)}" alt="OutreachGraph" width="48" height="48" ` +
+        'style="width:48px;height:48px;border:0" /></p>'
+      : '',
     '<p>Confirm your email to finish setting up OutreachGraph.</p>',
     `<p><a href="${safe}">${safe}</a></p>`,
     '<p>The link expires in 24 hours. If you did not create this account you can ',