diff --git a/src/lib/seo.ts b/src/lib/seo.ts
new file mode 100644
index 00000000..35b3e7fa
--- /dev/null
+++ b/src/lib/seo.ts
@@ -0,0 +1,9 @@
+export function head({ title, description }: { title?: string; description?: string }) {
+	return `
+    <title>${title ?? 'Granblue.team'}</title>
+    ${description ? `<meta name="description" content="${description}">` : ''}
+    <meta property="og:title" content="${title ?? 'Granblue.team'}">
+    ${description ? `<meta property="og:description" content="${description}">` : ''}
+    <meta name="twitter:card" content="summary_large_image">
+  `
+}