diff --git a/CLAUDE.md b/CLAUDE.md
index 0210bfb..126e8bc 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -29,6 +29,7 @@ Svelte 5 + TypeScript + Vite. Public repository.
 | Value bonus for owning a front                 | `ownedBonus` in `data/production.ts` (019)        |
 | Shut-down businesses (owned, not running)      | `isRunning` in `lib/properties.ts` (020)          |
 | Theme tokens                                   | `src/app.css` (decision 009)                      |
+| Link previews (Open Graph), preview image      | `index.html`, `scripts/og-image.html`             |
 | CI, templates                                  | `.github/`                                        |
 | Skills: `handoff`, `finish-pr`; agent: `scout` | `.claude/`                                        |
 
diff --git a/index.html b/index.html
index b889f59..9455491 100644
--- a/index.html
+++ b/index.html
@@ -7,8 +7,29 @@
       name="description"
       content="Los Santos Operating System: track GTA Online businesses, safes and cooldowns in your browser."
     />
+    <meta name="theme-color" content="#62d394" />
     <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
+    <link rel="canonical" href="https://lsos.toothy.dev/" />
     <title>LSOS</title>
+
+    <!-- Link previews (Discord, Slack, X, ...). The image source is scripts/og-image.html. -->
+    <meta property="og:type" content="website" />
+    <meta property="og:site_name" content="LSOS" />
+    <meta property="og:url" content="https://lsos.toothy.dev/" />
+    <meta property="og:title" content="LSOS: GTA Online business tracker" />
+    <meta
+      property="og:description"
+      content="Keep it open while you play: stock, supplies, safes and cooldowns at a glance, so you know when to sell, collect or start the next heist. Free, no account, runs in your browser."
+    />
+    <meta property="og:image" content="https://lsos.toothy.dev/og-image.png" />
+    <meta property="og:image:type" content="image/png" />
+    <meta property="og:image:width" content="1200" />
+    <meta property="og:image:height" content="630" />
+    <meta
+      property="og:image:alt"
+      content="LSOS, Los Santos Operating System: track your GTA Online businesses, safes and cooldowns."
+    />
+    <meta name="twitter:card" content="summary_large_image" />
   </head>
   <body>
     <div id="app"></div>
diff --git a/public/og-image.png b/public/og-image.png
new file mode 100644
index 0000000..cb9f4cd
Binary files /dev/null and b/public/og-image.png differ
diff --git a/scripts/og-image.html b/scripts/og-image.html
new file mode 100644
index 0000000..54ebde8
--- /dev/null
+++ b/scripts/og-image.html
@@ -0,0 +1,191 @@
+<!doctype html>
+<!--
+  Source of public/og-image.png, the 1200x630 link preview (Open Graph) image. Colours and font
+  match src/app.css. To regenerate: open this file in a browser at 1200x630 and screenshot it,
+  e.g. with Playwright: page.setViewportSize({ width: 1200, height: 630 }), page.screenshot().
+-->
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <style>
+      @font-face {
+        font-family: 'Oswald Variable';
+        font-weight: 200 700;
+        src: url('../node_modules/@fontsource-variable/oswald/files/oswald-latin-wght-normal.woff2')
+          format('woff2-variations');
+      }
+      * {
+        box-sizing: border-box;
+        margin: 0;
+      }
+      html,
+      body {
+        width: 1200px;
+        height: 630px;
+      }
+      body {
+        background: #12161b;
+        color: #e8ecef;
+        font-family: 'Oswald Variable', 'Arial Narrow', sans-serif;
+        position: relative;
+        overflow: hidden;
+      }
+      body::after {
+        content: '';
+        position: absolute;
+        inset: 0;
+        background: repeating-linear-gradient(
+          to bottom,
+          rgb(0 0 0 / 0.14) 0 1px,
+          transparent 1px 4px
+        );
+        pointer-events: none;
+      }
+      .frame {
+        position: absolute;
+        inset: 36px;
+        border: 2px solid #34404c;
+        border-radius: 6px;
+        background: linear-gradient(135deg, #1a1f26, #12161b 70%);
+        padding: 64px 72px;
+        display: flex;
+        gap: 64px;
+      }
+      .left {
+        flex: 1;
+        display: flex;
+        flex-direction: column;
+      }
+      .brand {
+        display: flex;
+        align-items: center;
+        gap: 28px;
+      }
+      .icon {
+        width: 112px;
+        height: 112px;
+      }
+      h1 {
+        font-size: 132px;
+        line-height: 1;
+        font-weight: 600;
+        letter-spacing: 0.08em;
+      }
+      .sub {
+        margin-top: 22px;
+        font-size: 27px;
+        letter-spacing: 0.22em;
+        text-transform: uppercase;
+        color: #62d394;
+      }
+      .tag {
+        margin-top: 36px;
+        font-size: 40px;
+        font-weight: 400;
+        line-height: 1.25;
+      }
+      .foot {
+        margin-top: auto;
+        font-size: 24px;
+        letter-spacing: 0.18em;
+        text-transform: uppercase;
+        color: #9aa7b3;
+      }
+      .cards {
+        width: 330px;
+        display: flex;
+        flex-direction: column;
+        gap: 22px;
+        justify-content: center;
+      }
+      .card {
+        background: #20262e;
+        border: 1px solid #34404c;
+        border-radius: 4px;
+        padding: 20px 24px;
+      }
+      .card h2 {
+        font-size: 22px;
+        font-weight: 500;
+        letter-spacing: 0.18em;
+        text-transform: uppercase;
+        margin-bottom: 14px;
+      }
+      .bar {
+        display: flex;
+        gap: 5px;
+        height: 14px;
+        margin-top: 8px;
+      }
+      .bar i {
+        flex: 1;
+        background: #2b343e;
+        border: 1px solid #6b7a88;
+        border-radius: 1px;
+      }
+      .bar.stock i.on {
+        background: #3a9e66;
+        border-color: #3a9e66;
+      }
+      .bar.sup i.on {
+        background: #3f6db8;
+        border-color: #3f6db8;
+      }
+      .bar.warn i.on {
+        background: #f0b450;
+        border-color: #f0b450;
+      }
+    </style>
+  </head>
+  <body>
+    <div class="frame">
+      <div class="left">
+        <div class="brand">
+          <svg class="icon" viewBox="0 0 32 32">
+            <rect width="32" height="32" rx="4" fill="#0b0f0c" />
+            <path
+              d="M7 10l6 6-6 6"
+              fill="none"
+              stroke="#7dff9b"
+              stroke-width="3"
+              stroke-linecap="square"
+            />
+            <path d="M16 23h9" stroke="#7dff9b" stroke-width="3" />
+          </svg>
+          <h1>LSOS</h1>
+        </div>
+        <p class="sub">Los Santos Operating System</p>
+        <p class="tag">Track your GTA Online businesses,<br />safes and cooldowns.</p>
+        <p class="foot">Free · No account · Runs in your browser</p>
+      </div>
+      <div class="cards">
+        <div class="card">
+          <h2>Businesses</h2>
+          <div class="bar stock">
+            <i class="on"></i><i class="on"></i><i class="on"></i><i class="on"></i
+            ><i class="on"></i><i class="on"></i><i></i><i></i><i></i><i></i>
+          </div>
+          <div class="bar sup">
+            <i class="on"></i><i class="on"></i><i class="on"></i><i></i><i></i><i></i><i></i><i></i
+            ><i></i><i></i>
+          </div>
+        </div>
+        <div class="card">
+          <h2>Safes</h2>
+          <div class="bar stock">
+            <i class="on"></i><i class="on"></i><i class="on"></i><i class="on"></i
+            ><i class="on"></i><i class="on"></i><i class="on"></i><i class="on"></i
+            ><i class="on"></i><i></i>
+          </div>
+        </div>
+        <div class="card">
+          <h2>Cooldowns</h2>
+          <div class="bar warn">
+            <i class="on"></i><i class="on"></i><i class="on"></i><i class="on"></i><i></i><i></i
+            ><i></i><i></i><i></i><i></i>
+          </div>
+        </div>
+      </div>
+    </div>
+  </body>
+</html>