diff --git a/.github/workflows/nextjs.yml b/.github/workflows/nextjs.yml
index 869d034..dde8bb6 100644
--- a/.github/workflows/nextjs.yml
+++ b/.github/workflows/nextjs.yml
@@ -73,9 +73,9 @@ jobs:
             ${{ runner.os }}-nextjs-${{ hashFiles('**/package-lock.json', '**/yarn.lock') }}-
       - name: Install dependencies
         run: ${{ steps.detect-package-manager.outputs.manager }} ${{ steps.detect-package-manager.outputs.command }}
-      # - name: Build with Next.js
-      #   run: ${{ steps.detect-package-manager.outputs.runner }} next build
-      - name: Static HTML build and export with Next.js
+      - name: Build with Next.js
+        run: ${{ steps.detect-package-manager.outputs.runner }} build
+      - name: Static HTML export with Next.js
         run: ${{ steps.detect-package-manager.outputs.runner }} export
       - name: Upload artifact
         uses: actions/upload-pages-artifact@v2
diff --git a/next-sitemap.config.js b/next-sitemap.config.js
new file mode 100644
index 0000000..2e481f4
--- /dev/null
+++ b/next-sitemap.config.js
@@ -0,0 +1,5 @@
+/** @type {import('next-sitemap').IConfig} */
+module.exports = {
+  siteUrl: "https://twitch-follower-checker.devkey.jp",
+  generateRobotsTxt: true,
+};
diff --git a/package.json b/package.json
index 96eeecc..c8ec910 100644
--- a/package.json
+++ b/package.json
@@ -5,9 +5,10 @@
   "scripts": {
     "dev": "next dev",
     "build": "next build",
+    "postbuild": "next-sitemap",
     "start": "next start",
     "lint": "next lint",
-    "export": "next build && next export"
+    "export": "next export"
   },
   "dependencies": {
     "@emotion/react": "^11.11.1",
@@ -19,22 +20,23 @@
     "ag-grid-react": "30.2.0",
     "classnames": "^2.3.2",
     "next": "13.5.3",
+    "next-sitemap": "^4.2.3",
     "nextra": "3.0.0-alpha.8",
     "nextra-theme-docs": "3.0.0-alpha.8",
-    "react": "^18",
-    "react-dom": "^18",
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0",
     "react-ga4": "^2.1.0",
     "react-social-login-buttons": "3.9.1"
   },
   "devDependencies": {
-    "@types/node": "^20",
-    "@types/react": "^18",
-    "@types/react-dom": "^18",
-    "autoprefixer": "^10",
-    "eslint": "^8",
-    "eslint-config-next": "13.5.4",
-    "postcss": "^8",
-    "tailwindcss": "^3",
-    "typescript": "^5"
+    "@types/node": "^20.8.7",
+    "@types/react": "^18.2.30",
+    "@types/react-dom": "^18.2.14",
+    "autoprefixer": "^10.4.16",
+    "eslint": "^8.51.0",
+    "eslint-config-next": "^13.5.6",
+    "postcss": "^8.4.31",
+    "tailwindcss": "^3.3.3",
+    "typescript": "^5.2.2"
   }
-}
+}
\ No newline at end of file
diff --git a/yarn.lock b/yarn.lock
index 3f0b1d3..aae7fb5 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -67,6 +67,11 @@
   resolved "https://registry.yarnpkg.com/@braintree/sanitize-url/-/sanitize-url-6.0.4.tgz#923ca57e173c6b232bbbb07347b1be982f03e783"
   integrity sha512-s3jaWicZd0pkP0jf5ysyHUI/RE7MHos6qlToFcGWXVp+ykHOy77OUMrfbgJ9it2C5bow7OIQwYYaHjk9XlBQ2A==
 
+"@corex/deepmerge@^4.0.43":
+  version "4.0.43"
+  resolved "https://registry.yarnpkg.com/@corex/deepmerge/-/deepmerge-4.0.43.tgz#9bd42559ebb41cc5a7fb7cfeea5f231c20977dca"
+  integrity sha512-N8uEMrMPL0cu/bdboEWpQYb/0i2K5Qn8eCsxzOmxSggJbbQte7ljMRoXm917AbntqTGOzdTu+vP3KOOzoC70HQ==
+
 "@emotion/babel-plugin@^11.11.0":
   version "11.11.0"
   resolved "https://registry.yarnpkg.com/@emotion/babel-plugin/-/babel-plugin-11.11.0.tgz#c2d872b6a7767a9d176d007f5b31f7d504bb5d6c"
@@ -586,10 +591,15 @@
   resolved "https://registry.yarnpkg.com/@next/env/-/env-13.5.3.tgz#402da9a0af87f93d853519f0c2a602b1ab637c2c"
   integrity sha512-X4te86vsbjsB7iO4usY9jLPtZ827Mbx+WcwNBGUOIuswuTAKQtzsuoxc/6KLxCMvogKG795MhrR1LDhYgDvasg==
 
-"@next/eslint-plugin-next@13.5.4":
-  version "13.5.4"
-  resolved "https://registry.yarnpkg.com/@next/eslint-plugin-next/-/eslint-plugin-next-13.5.4.tgz#ec70af509f07dc4e545df25834ac94d2c341c36a"
-  integrity sha512-vI94U+D7RNgX6XypSyjeFrOzxGlZyxOplU0dVE5norIfZGn/LDjJYPHdvdsR5vN1eRtl6PDAsOHmycFEOljK5A==
+"@next/env@^13.4.3":
+  version "13.5.6"
+  resolved "https://registry.yarnpkg.com/@next/env/-/env-13.5.6.tgz#c1148e2e1aa166614f05161ee8f77ded467062bc"
+  integrity sha512-Yac/bV5sBGkkEXmAX5FWPS9Mmo2rthrOPRQQNfycJPkjUAUclomCPH7QFVCDQ4Mp2k2K1SSM6m0zrxYrOwtFQw==
+
+"@next/eslint-plugin-next@13.5.6":
+  version "13.5.6"
+  resolved "https://registry.yarnpkg.com/@next/eslint-plugin-next/-/eslint-plugin-next-13.5.6.tgz#cf279b94ddc7de49af8e8957f0c3b7349bc489bf"
+  integrity sha512-ng7pU/DDsxPgT6ZPvuprxrkeew3XaRf4LAT4FabaEO/hAbvVx4P7wqnqdbTdDn1kgTvsI4tpIgT4Awn/m0bGbg==
   dependencies:
     glob "7.1.7"
 
@@ -783,7 +793,7 @@
   resolved "https://registry.yarnpkg.com/@types/ms/-/ms-0.7.33.tgz#80bf1da64b15f21fd8c1dc387c31929317d99ee9"
   integrity sha512-AuHIyzR5Hea7ij0P9q7vx7xu4z0C28ucwjAZC0ja7JhINyCnOw8/DnvAPQQ9TfOlCtZAmCERKQX9+o1mgQhuOQ==
 
-"@types/node@^20":
+"@types/node@^20.8.7":
   version "20.8.7"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-20.8.7.tgz#ad23827850843de973096edfc5abc9e922492a25"
   integrity sha512-21TKHHh3eUHIi2MloeptJWALuCu5H7HQTdTrWIFReA8ad+aggoX+lRes3ex7/FtpC+sVUpFMQ+QTfYr74mruiQ==
@@ -800,7 +810,7 @@
   resolved "https://registry.yarnpkg.com/@types/prop-types/-/prop-types-15.7.9.tgz#b6f785caa7ea1fe4414d9df42ee0ab67f23d8a6d"
   integrity sha512-n1yyPsugYNSmHgxDFjicaI2+gCNjsBck8UX9kuofAKlc0h1bL+20oSF72KeNaW2DUlesbEVCFgyV2dPGTiY42g==
 
-"@types/react-dom@^18":
+"@types/react-dom@^18.2.14":
   version "18.2.14"
   resolved "https://registry.yarnpkg.com/@types/react-dom/-/react-dom-18.2.14.tgz#c01ba40e5bb57fc1dc41569bb3ccdb19eab1c539"
   integrity sha512-V835xgdSVmyQmI1KLV2BEIUgqEuinxp9O4G6g3FqO/SqLac049E53aysv0oEFD2kHfejeKU+ZqL2bcFWj9gLAQ==
@@ -814,7 +824,7 @@
   dependencies:
     "@types/react" "*"
 
-"@types/react@*", "@types/react@>=16", "@types/react@^18":
+"@types/react@*", "@types/react@>=16":
   version "18.2.29"
   resolved "https://registry.yarnpkg.com/@types/react/-/react-18.2.29.tgz#88b48a287e00f6fdcd6f95662878fb701ae18b27"
   integrity sha512-Z+ZrIRocWtdD70j45izShRwDuiB4JZqDegqMFW/I8aG5DxxLKOzVNoq62UIO82v9bdgi+DO1jvsb9sTEZUSm+Q==
@@ -823,6 +833,15 @@
     "@types/scheduler" "*"
     csstype "^3.0.2"
 
+"@types/react@^18.2.30":
+  version "18.2.30"
+  resolved "https://registry.yarnpkg.com/@types/react/-/react-18.2.30.tgz#b84f786864fc46f18545364a54d5e1316308e59b"
+  integrity sha512-OfqdJnDsSo4UNw0bqAjFCuBpLYQM7wvZidz0hVxHRjrEkzRlvZL1pJVyOSY55HMiKvRNEo9DUBRuEl7FNlJ/Vg==
+  dependencies:
+    "@types/prop-types" "*"
+    "@types/scheduler" "*"
+    csstype "^3.0.2"
+
 "@types/scheduler@*":
   version "0.16.5"
   resolved "https://registry.yarnpkg.com/@types/scheduler/-/scheduler-0.16.5.tgz#4751153abbf8d6199babb345a52e1eb4167d64af"
@@ -1089,7 +1108,7 @@ asynciterator.prototype@^1.0.0:
   dependencies:
     has-symbols "^1.0.3"
 
-autoprefixer@^10:
+autoprefixer@^10.4.16:
   version "10.4.16"
   resolved "https://registry.yarnpkg.com/autoprefixer/-/autoprefixer-10.4.16.tgz#fad1411024d8670880bdece3970aa72e3572feb8"
   integrity sha512-7vd3UC6xKp0HLfua5IjZlcXvGAGy7cBAXTg2lyQ/8WpNhd6SiZ8Be+xm3FyBSYJx5GKcpRCzBh7RH4/0dnY+uQ==
@@ -1983,12 +2002,12 @@ escape-string-regexp@^5.0.0:
   resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-5.0.0.tgz#4683126b500b61762f2dbebace1806e8be31b1c8"
   integrity sha512-/veY75JbMK4j1yjvuUxuVsiS/hr/4iHs9FTT6cgTexxdE0Ly/glccBAkloH/DofkjRbZU3bnoj38mOmhkZ0lHw==
 
-eslint-config-next@13.5.4:
-  version "13.5.4"
-  resolved "https://registry.yarnpkg.com/eslint-config-next/-/eslint-config-next-13.5.4.tgz#e50bb157d8346b63426f4b36bf53c2e46ccbc938"
-  integrity sha512-FzQGIj4UEszRX7fcRSJK6L1LrDiVZvDFW320VVntVKh3BSU8Fb9kpaoxQx0cdFgf3MQXdeSbrCXJ/5Z/NndDkQ==
+eslint-config-next@^13.5.6:
+  version "13.5.6"
+  resolved "https://registry.yarnpkg.com/eslint-config-next/-/eslint-config-next-13.5.6.tgz#3a5a6222d5cb32256760ad68ab8e976e866a08c8"
+  integrity sha512-o8pQsUHTo9aHqJ2YiZDym5gQAMRf7O2HndHo/JZeY7TDD+W4hk6Ma8Vw54RHiBeb7OWWO5dPirQB+Is/aVQ7Kg==
   dependencies:
-    "@next/eslint-plugin-next" "13.5.4"
+    "@next/eslint-plugin-next" "13.5.6"
     "@rushstack/eslint-patch" "^1.3.3"
     "@typescript-eslint/parser" "^5.4.2 || ^6.0.0"
     eslint-import-resolver-node "^0.3.6"
@@ -2112,7 +2131,7 @@ eslint-visitor-keys@^3.3.0, eslint-visitor-keys@^3.4.1, eslint-visitor-keys@^3.4
   resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-3.4.3.tgz#0cd72fe8550e3c2eae156a96a4dddcd1c8ac5800"
   integrity sha512-wpc+LXeiyiisxPlEkUzU6svyS1frIO3Mgxj1fdy7Pm8Ygzguax2N3Fa/D/ag1WqbOprdI+uY6wMUl8/a2G+iag==
 
-eslint@^8:
+eslint@^8.51.0:
   version "8.51.0"
   resolved "https://registry.yarnpkg.com/eslint/-/eslint-8.51.0.tgz#4a82dae60d209ac89a5cff1604fea978ba4950f3"
   integrity sha512-2WuxRZBrlwnXi+/vFSJyjMqrNjtJqiasMzehF0shoLaW7DzS3/9Yvrmq5JiT66+pNjiX4UBnLDiKHcWAr/OInA==
@@ -4350,7 +4369,7 @@ minimatch@^3.0.4, minimatch@^3.0.5, minimatch@^3.1.1, minimatch@^3.1.2:
   dependencies:
     brace-expansion "^1.1.7"
 
-minimist@^1.2.0, minimist@^1.2.6:
+minimist@^1.2.0, minimist@^1.2.6, minimist@^1.2.8:
   version "1.2.8"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.8.tgz#c1a464e7693302e082a075cee0c057741ac4772c"
   integrity sha512-2yyAR8qBkN3YuheJanUpWC5U3bb5osDywNB8RzDVlDwDHbocAJveqqj1u8+SVD7jkWT4yvsHCpWqqWqAxb0zCA==
@@ -4394,6 +4413,16 @@ natural-compare@^1.4.0:
   resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
   integrity sha512-OWND8ei3VtNC9h7V60qff3SVobHr996CTwgxubgyQYEpg290h9J0buyECNNJexkFm5sOajh5G116RYA1c8ZMSw==
 
+next-sitemap@^4.2.3:
+  version "4.2.3"
+  resolved "https://registry.yarnpkg.com/next-sitemap/-/next-sitemap-4.2.3.tgz#5db3f650351a51e84b9fd6b58c5af2f9257b5058"
+  integrity sha512-vjdCxeDuWDzldhCnyFCQipw5bfpl4HmZA7uoo3GAaYGjGgfL4Cxb1CiztPuWGmS+auYs7/8OekRS8C2cjdAsjQ==
+  dependencies:
+    "@corex/deepmerge" "^4.0.43"
+    "@next/env" "^13.4.3"
+    fast-glob "^3.2.12"
+    minimist "^1.2.8"
+
 next-themes@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/next-themes/-/next-themes-0.2.1.tgz#0c9f128e847979daf6c67f70b38e6b6567856e45"
@@ -4793,7 +4822,7 @@ postcss@8.4.14:
     picocolors "^1.0.0"
     source-map-js "^1.0.2"
 
-postcss@^8, postcss@^8.4.23:
+postcss@^8.4.23, postcss@^8.4.31:
   version "8.4.31"
   resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.31.tgz#92b451050a9f914da6755af352bdc0192508656d"
   integrity sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==
@@ -4836,7 +4865,7 @@ queue-microtask@^1.2.2:
   resolved "https://registry.yarnpkg.com/queue-microtask/-/queue-microtask-1.2.3.tgz#4929228bbc724dfac43e0efb058caf7b6cfb6243"
   integrity sha512-NuaNSa6flKT5JaSYQzJok04JzTL1CA6aGhv5rfLW3PgqA+M2ChpZQnAC8h8i4ZFkBS8X5RqkDBHA7r4hej3K9A==
 
-react-dom@18.2.0, react-dom@^18:
+react-dom@18.2.0, react-dom@^18.2.0:
   version "18.2.0"
   resolved "https://registry.yarnpkg.com/react-dom/-/react-dom-18.2.0.tgz#22aaf38708db2674ed9ada224ca4aa708d821e3d"
   integrity sha512-6IMTriUmvsjHUjNtEDudZfuDQUoWXVxKHhlEGSk81n4YFS+r/Kl99wXiwlVXtPBtJenozv2P+hxDsw9eA7Xo6g==
@@ -4874,7 +4903,7 @@ react-transition-group@^4.4.5:
     loose-envify "^1.4.0"
     prop-types "^15.6.2"
 
-react@18.2.0, react@^18:
+react@18.2.0, react@^18.2.0:
   version "18.2.0"
   resolved "https://registry.yarnpkg.com/react/-/react-18.2.0.tgz#555bd98592883255fa00de14f1151a917b5d77d5"
   integrity sha512-/3IjMdb2L9QbBdWiW5e3P2/npwMBaU9mHCSCUzNln0ZCYbcfTsGbTJrU/kGemdH2IWmB2ioZ+zkxtmq6g09fGQ==
@@ -5414,7 +5443,7 @@ tailwind-merge@1.8.1:
   resolved "https://registry.yarnpkg.com/tailwind-merge/-/tailwind-merge-1.8.1.tgz#0e56c8afbab2491f72e06381043ffec8b720ba04"
   integrity sha512-+fflfPxvHFr81hTJpQ3MIwtqgvefHZFUHFiIHpVIRXvG/nX9+gu2P7JNlFu2bfDMJ+uHhi/pUgzaYacMoXv+Ww==
 
-tailwindcss@^3:
+tailwindcss@^3.3.3:
   version "3.3.3"
   resolved "https://registry.yarnpkg.com/tailwindcss/-/tailwindcss-3.3.3.tgz#90da807393a2859189e48e9e7000e6880a736daf"
   integrity sha512-A0KgSkef7eE4Mf+nKJ83i75TMyq8HqY3qmFIJSWy8bNt0v1lG7jUcpGpoTFxAwYcWOphcTBLPPJg+bDfhDf52w==
@@ -5589,7 +5618,7 @@ typed-array-length@^1.0.4:
     for-each "^0.3.3"
     is-typed-array "^1.1.9"
 
-typescript@^5:
+typescript@^5.2.2:
   version "5.2.2"
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.2.2.tgz#5ebb5e5a5b75f085f22bc3f8460fba308310fa78"
   integrity sha512-mI4WrpHsbCIcwT9cF4FZvr80QUeKvsUsUvKDoR+X/7XHQH98xYD8YHZg7ANtz2GtZt/CBq2QJ0thkGJMHfqc1w==