diff --git a/src/app.html b/src/app.html
index 85fe3b7..d2cf84d 100644
--- a/src/app.html
+++ b/src/app.html
@@ -4,6 +4,24 @@
 		<meta charset="utf-8" />
 		<meta name="viewport" content="width=device-width, initial-scale=1" />
 		<meta name="color-scheme" content="dark" />
+		<meta name="theme-color" content="#121a20" />
+		<title>Waving Hands</title>
+		<meta name="description" content="A duel of gestures against a rival wizard, after Richard Bartle's 1977 pencil-and-paper game. Free to play in the browser." />
+		<link rel="canonical" href="https://hands.kestrelsnest.social/" />
+		<link rel="apple-touch-icon" href="/apple-touch-icon.png" />
+		<meta property="og:type" content="website" />
+		<meta property="og:site_name" content="Waving Hands" />
+		<meta property="og:title" content="Waving Hands" />
+		<meta property="og:description" content="A duel of gestures against a rival wizard, after Richard Bartle's 1977 pencil-and-paper game. Free to play in the browser." />
+		<meta property="og:url" content="https://hands.kestrelsnest.social/" />
+		<meta property="og:image" content="https://hands.kestrelsnest.social/og.png" />
+		<meta property="og:image:width" content="1200" />
+		<meta property="og:image:height" content="630" />
+		<meta property="og:image:alt" content="Waving Hands: a ledger of gesture letters beside the title and a snapping hand." />
+		<meta name="twitter:card" content="summary_large_image" />
+		<meta name="twitter:title" content="Waving Hands" />
+		<meta name="twitter:description" content="A duel of gestures against a rival wizard, after Richard Bartle's 1977 pencil-and-paper game. Free to play in the browser." />
+		<meta name="twitter:image" content="https://hands.kestrelsnest.social/og.png" />
 		<link rel="preconnect" href="https://fonts.googleapis.com" />
 		<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
 		<link
diff --git a/src/routes/+page.svelte b/src/routes/+page.svelte
index 01516ee..1a576d8 100644
--- a/src/routes/+page.svelte
+++ b/src/routes/+page.svelte
@@ -40,7 +40,6 @@
 
 <svelte:head>
 	<title>Waving Hands</title>
-	<meta name="description" content="A duel of gestures against a rival wizard, after Richard Bartle's 1977 pencil-and-paper game." />
 </svelte:head>
 
 <header class="masthead">
diff --git a/static/apple-touch-icon.png b/static/apple-touch-icon.png
new file mode 100644
index 0000000..481c0c8
Binary files /dev/null and b/static/apple-touch-icon.png differ
diff --git a/static/og.png b/static/og.png
new file mode 100644
index 0000000..f07788d
Binary files /dev/null and b/static/og.png differ