diff --git a/_headers b/_headers
new file mode 100644
index 0000000..bf23c92
--- /dev/null
+++ b/_headers
@@ -0,0 +1,2 @@
+/*
+  Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
\ No newline at end of file
diff --git a/_redirects b/_redirects
new file mode 100644
index 0000000..4233716
--- /dev/null
+++ b/_redirects
@@ -0,0 +1 @@
+/* /404 404
\ No newline at end of file
diff --git a/gamepad-solid.svg b/gamepad-solid.svg
new file mode 100644
index 0000000..932964d
--- /dev/null
+++ b/gamepad-solid.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 640 512"><!--!Font Awesome Free 6.7.2 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free Copyright 2025 Fonticons, Inc.--><path d="M192 64C86 64 0 150 0 256S86 448 192 448l256 0c106 0 192-86 192-192s-86-192-192-192L192 64zM496 168a40 40 0 1 1 0 80 40 40 0 1 1 0-80zM392 304a40 40 0 1 1 80 0 40 40 0 1 1 -80 0zM168 200c0-13.3 10.7-24 24-24s24 10.7 24 24l0 32 32 0c13.3 0 24 10.7 24 24s-10.7 24-24 24l-32 0 0 32c0 13.3-10.7 24-24 24s-24-10.7-24-24l0-32-32 0c-13.3 0-24-10.7-24-24s10.7-24 24-24l32 0 0-32z"/></svg>
\ No newline at end of file
diff --git a/index.html b/index.html
index 6e334f6..a6b6b92 100644
--- a/index.html
+++ b/index.html
@@ -4,7 +4,20 @@
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Galgame 聚合搜索</title>
-    <link rel="stylesheet" href="style.css" />
+    <meta
+      name="description"
+      content="一个聚合搜索 Galgame 的网站，支持多平台搜索"
+    />
+    <meta name="keywords" content="Galgame, 搜索, 聚合搜索, 游戏" />
+    <meta name="author" content="Moe-Sakura" />
+    <meta property="og:title" content="Galgame 聚合搜索" />
+    <meta
+      property="og:description"
+      content="一个聚合搜索 Galgame 的网站，支持多平台搜索"
+    />
+    <meta property="og:type" content="website" />
+    <meta property="og:site_name" content="Galgame 聚合搜索" />
+    <link rel="shortcut icon" href="./gamepad-solid.svg" type="image/svg+xml" />
     <link
       fetchpriority="low"
       href="https://registry.npmmirror.com/artalk/latest/files/dist/Artalk.css"
@@ -15,6 +28,7 @@
       href="https://registry.npmmirror.com/lightgallery/latest/files/css/lightgallery.css"
       rel="stylesheet"
     />
+    <link rel="stylesheet" href="style.css" fetchpriority="high" />
   </head>
 
   <body>
@@ -75,7 +89,7 @@
       fetchpriority="low"
       src="https://registry.npmmirror.com/@artalk/plugin-lightbox/latest/files/dist/artalk-plugin-lightbox.js"
     ></script>
-    <script src="main.js"></script>
+    <script src="main.js" fetchpriority="high"></script>
     <script
       async
       src="https://registry.npmmirror.com/js-asuna/latest/files/js/bsz.pure.mini.js"
diff --git a/robots.txt b/robots.txt
new file mode 100644
index 0000000..ca75c5f
--- /dev/null
+++ b/robots.txt
@@ -0,0 +1,4 @@
+User-agent: *
+Disallow:
+Allow: /
+Sitemap: https://sg.saop.cc/sitemap.xml
\ No newline at end of file
diff --git a/sitemap.xml b/sitemap.xml
new file mode 100644
index 0000000..fbdb575
--- /dev/null
+++ b/sitemap.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
+    <url>
+        <loc>https://sg.saop.cc/</loc>
+    </url>
+</urlset>
\ No newline at end of file
