diff --git a/astro.config.mjs b/astro.config.mjs
index ac6fe54..c293cc3 100755
--- a/astro.config.mjs
+++ b/astro.config.mjs
@@ -1,11 +1,12 @@
 import { defineConfig } from 'astro/config';
 import cloudflare from "@astrojs/cloudflare";
-
 import tailwind from "@astrojs/tailwind";
 // https://astro.build/config
 export default defineConfig({
   output: "server",
   adapter: cloudflare(),
-  integrations: [tailwind()],
+  integrations: [
+tailwind()
+  ],
   site: "https://s0u7a.net"
 });
diff --git a/public/manifest.json b/public/manifest.json
index e1431f3..60e56d1 100644
--- a/public/manifest.json
+++ b/public/manifest.json
@@ -6,74 +6,64 @@
 	"start_url":		"/",
 	"display":			"standalone",
 	"orientation":		"any",
-	"background_color":	"#fff",
-	"theme_color":		"#fff",
+	"background_color":	"#0F172A",
+	"theme_color":		"#0F172A",
 	"icons": [
 		{
 			"src": "/android-chrome-36x36.png",
 			"sizes": "36x36",
-			"type": "image/png",
-			"purpose": "maskable"
+			"type": "image/png"
 		},
 		{
 			"src": "/android-chrome-48x48.png",
 			"sizes": "48x48",
-			"type": "image/png",
-			"purpose": "maskable"
+			"type": "image/png"
 		},
 		{
 			"src": "/android-chrome-72x72.png",
 			"sizes": "72x72",
-			"type": "image/png",
-			"purpose": "maskable"
+			"type": "image/png"
 		},
 		{
 			"src": "/android-chrome-96x96.png",
 			"sizes": "96x96",
-			"type": "image/png",
-			"purpose": "maskable"
+			"type": "image/png"
 		},
 		{
 			"src": "/android-chrome-128x128.png",
 			"sizes": "128x128",
-			"type": "image/png",
-			"purpose": "maskable"
+			"type": "image/png"
 		},
 		{
 			"src": "/android-chrome-144x144.png",
 			"sizes": "144x144",
-			"type": "image/png",
-			"purpose": "maskable"
+			"type": "image/png"
 		},
 		{
 			"src": "/android-chrome-152x152.png",
 			"sizes": "152x152",
-			"type": "image/png",
-			"purpose": "maskable"
+			"type": "image/png"
 		},
 		{
 			"src": "/android-chrome-192x192.png",
 			"sizes": "192x192",
-			"type": "image/png",
-			"purpose": "maskable"
+			"type": "image/png"
 		},
 		{
 			"src": "/android-chrome-256x256.png",
 			"sizes": "256x256",
-			"type": "image/png",
-			"purpose": "maskable"
+			"type": "image/png"
 		},
 		{
 			"src": "/android-chrome-384x384.png",
 			"sizes": "384x384",
-			"type": "image/png",
-			"purpose": "maskable"
+			"type": "image/png"
 		},
 		{
 			"src": "/android-chrome-512x512.png",
 			"sizes": "512x512",
 			"type": "image/png",
-			"purpose": "maskable"
+			"purpose": "any maskable"
 		}
 	]
 }
diff --git a/public/sw.js b/public/sw.js
new file mode 100644
index 0000000..94d11d7
--- /dev/null
+++ b/public/sw.js
@@ -0,0 +1,10 @@
+self.addEventListener('activate', (event) => {
+    event.waitUntil(self.clients.claim());
+  });
+  self.addEventListener('install', (event) => {
+      console.log('インストール');
+     event.waitUntil(self.skipWaiting());
+  });
+  self.addEventListener("fetch", (e) => {
+    console.log("[Service Worker] Fetched resource " + e.request.url);
+  });
\ No newline at end of file
diff --git a/src/components/BaseHead.astro b/src/components/BaseHead.astro
index 28aacfc..bfc6199 100755
--- a/src/components/BaseHead.astro
+++ b/src/components/BaseHead.astro
@@ -22,8 +22,11 @@ function parseOGP(link: string): string {
 <meta name="viewport" content="width=device-width, initial-scale=1" />
 <meta name="generator" content={Astro.generator} />
 <meta name="theme-color" content="#0F172A"/>
+<link rel="canonical" href="https://s0u7a.net/" />
 <title>{title}</title>
 <!-- OGP -->
+<meta property="og:locale" content="ja_JP" />
+<meta property="og:type" content="website" />
 <meta property="og:type" content="website">
 <meta property="og:title" content={title}>
 <meta property="og:description" content={description}>
@@ -86,4 +89,5 @@ function parseOGP(link: string): string {
 <link rel="icon" type="image/png" sizes="24x24" href="/icon-24x24.png">
 <link rel="icon" type="image/png" sizes="32x32" href="/icon-32x32.png">
 <link rel="manifest" href="/manifest.json">
+<script>const registerServiceWorker=async()=>{if("serviceWorker"in navigator)try{let e=await navigator.serviceWorker.register("/sw.js",{scope:"/"});e.installing?console.log("Service worker installing"):e.waiting?console.log("Service worker installed"):e.active&&console.log("Service worker active")}catch(r){console.error(`Registration failed with ${r}`)}};registerServiceWorker();</script>
 <ViewTransitions />
diff --git a/src/components/Layout/Footer.astro b/src/components/Layout/Footer.astro
index 7ef1ce7..1bde5ab 100755
--- a/src/components/Layout/Footer.astro
+++ b/src/components/Layout/Footer.astro
@@ -3,7 +3,7 @@
 ---
 
 <footer class="fixed bottom-0 left-0 z-20 w-full p-4 bg-white border-t border-gray-200 shadow md:flex md:items-center md:justify-between md:p-6 dark:bg-gray-800 dark:border-gray-600">
-  <span class="text-sm text-gray-500 sm:text-center dark:text-gray-400">© 2023 <a href="https://flowbite.com/" class="hover:underline">Flowbite™</a>. All Rights Reserved.
+  <span class="text-sm text-gray-500 sm:text-center dark:text-gray-400">© 2023 <a href="https://s0u7a.net/" class="hover:underline">s0u7a</a>. All Rights Reserved.
   </span>
   <ul class="flex flex-wrap items-center mt-3 text-sm font-medium text-gray-500 dark:text-gray-400 sm:mt-0">
       <li>