diff --git a/index.html b/index.html
index 73d330f..cc7b902 100644
--- a/index.html
+++ b/index.html
@@ -5,6 +5,12 @@
     <link rel="icon" type="image/webp" href="/avatar.webp" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>yude.jp</title>
+    <meta property="og:title" content="Front page of yude.jp">
+    <meta property="og:type" content="website">
+    <meta property="og:url" content="https://www.yude.jp/">
+    <meta property="og:image" content="https://og-image.eyemono.moe/yude%20%E3%81%AE%E3%83%9A%E3%83%BC%E3%82%B8.png?pattern=none&md=1&fontSize=125px&textColor=%23404040&textStrongColor=%238340BB&overlay=https%3A%2F%2Fimages.microcms-assets.io%2Fassets%2Ff1f77e2dbfee45faa90eb70c5b4445f3%2Feaeec4b7b07641d183ca90c4b070e5fe%2FOGP%25E7%2594%25BB%25E5%2583%258F%28W1200xH630%29.png">
+    <meta property="og:site_name" content="yude.jp">
+    <meta property="og:locale" content="ja_JP">
   </head>
   <body>
     <div id="root"></div>
