diff --git a/README.md b/README.md
index 5d8a4229..b98c64a7 100644
--- a/README.md
+++ b/README.md
@@ -31,6 +31,11 @@ pnpm run deploy
 Netlify を使ってプレビュー環境デプロイを行っています。
 `preview`ブランチに push すると、Netlify のプレビュー環境にデプロイされます。
 
+```bash
+# ビルド
+pnpm run preview-build
+```
+
 ## リソース情報の更新
 
 コードの更新
diff --git a/astro.config.ts b/astro.config.ts
index 8106a0fa..612c0b51 100644
--- a/astro.config.ts
+++ b/astro.config.ts
@@ -15,7 +15,7 @@ export default defineConfig({
   integrations: [
     mdx(),
     sitemap({
-      filter: (page) => page.includes("/dev/"),
+      filter: (page) => !page.includes("/dev/"),
     }),
     react(),
     partytown({
diff --git a/eslint.config.mjs b/eslint.config.mjs
index d21d3b29..af876b65 100644
--- a/eslint.config.mjs
+++ b/eslint.config.mjs
@@ -1,12 +1,12 @@
 // @ts-check
 
-import eslint from "@eslint/js";
-import tseslint from "typescript-eslint";
+import js from "@eslint/js";
+import typescript from "typescript-eslint";
 import astro from "eslint-plugin-astro";
 
-export default tseslint.config(
-  eslint.configs.recommended,
-  tseslint.configs.recommended,
+export default typescript.config(
+  js.configs.recommended,
+  typescript.configs.recommended,
   astro.configs["flat/recommended"],
   astro.configs["flat/jsx-a11y-recommended"],
   {
diff --git a/package.json b/package.json
index 2b3de98c..f40e8e13 100644
--- a/package.json
+++ b/package.json
@@ -7,6 +7,7 @@
     "start": "astro dev",
     "build": "astro check && astro build",
     "preview": "astro preview",
+    "preview-build": "cross-env PREVIEW=1 astro build",
     "deploy": "astro check && astro build && gh-pages -d dist",
     "lint": "eslint src/",
     "fmt": "eslint src/ --fix",
@@ -38,6 +39,7 @@
     "astro": "4.16.10",
     "astro-seo": "0.8.4",
     "bulma": "1.0.2",
+    "cross-env": "7.0.3",
     "eslint": "9.15.0",
     "eslint-plugin-astro": "1.3.1",
     "eslint-plugin-jsx-a11y": "6.10.2",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 89fa284e..f83826e7 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -74,6 +74,9 @@ importers:
       bulma:
         specifier: 1.0.2
         version: 1.0.2
+      cross-env:
+        specifier: 7.0.3
+        version: 7.0.3
       eslint:
         specifier: 9.15.0
         version: 9.15.0
@@ -1468,6 +1471,11 @@ packages:
     resolution: {integrity: sha512-yki5XnKuf750l50uGTllt6kKILY4nQ1eNIQatoXEByZ5dWgnKqbnqmTrBE5B4N7lrMJKQ2ytWMiTO2o0v6Ew/w==}
     engines: {node: '>= 0.6'}
 
+  cross-env@7.0.3:
+    resolution: {integrity: sha512-+/HKd6EgcQCJGh2PSjZuUitQBQynKor4wrFbRg4DtAgS1aWO+gU52xpH7M9ScGgXSYmAVS9bIJ8EzuaGw0oNAw==}
+    engines: {node: '>=10.14', npm: '>=6', yarn: '>=1'}
+    hasBin: true
+
   cross-spawn@7.0.6:
     resolution: {integrity: sha512-uV2QOWP2nWzsy2aMp8aRibhi9dlzF5Hgh5SHaB9OiTGEyDTiJJyx0uy51QXdyWbtAHNua4XJzUKca3OzKUd3vA==}
     engines: {node: '>= 8'}
@@ -4773,6 +4781,10 @@ snapshots:
 
   cookie@0.7.2: {}
 
+  cross-env@7.0.3:
+    dependencies:
+      cross-spawn: 7.0.6
+
   cross-spawn@7.0.6:
     dependencies:
       path-key: 3.1.1
diff --git a/src/constants/characterInfos/callNameInfo.ts b/src/constants/characterInfos/callNameInfo.ts
index b882ed6e..7249e6cd 100644
--- a/src/constants/characterInfos/callNameInfo.ts
+++ b/src/constants/characterInfos/callNameInfo.ts
@@ -470,6 +470,7 @@ export const callNameInfos: {
     藍田ノエル: "あいえるさん/あいえるはん",
     満別花丸: "満別さん/花丸はん",
     琴詠ニア: "琴詠さん/ニアはん",
+    Voidoll: "ボイドールさん/ぼいどーるはん",
   },
   No7: {
     me: ["私", "僕"],
diff --git a/src/layouts/Base.astro b/src/layouts/Base.astro
index 72b6ca35..a55d3667 100644
--- a/src/layouts/Base.astro
+++ b/src/layouts/Base.astro
@@ -35,12 +35,13 @@ const {
   description,
   image: _image,
   imageAlt,
-  noindex,
+  noindex: noindex_,
   defaultHideHeader,
   isDark,
   isNemo,
 } = Astro.props;
 
+const noindex = import.meta.env.PREVIEW || noindex_;
 const isProduction = import.meta.env.PROD;
 
 // imageとimageAltが片方だけ指定されている場合はエラーを出す
diff --git a/src/pages/robots.txt.ts b/src/pages/robots.txt.ts
index 3e0f164d..cf137089 100644
--- a/src/pages/robots.txt.ts
+++ b/src/pages/robots.txt.ts
@@ -1,12 +1,11 @@
 /**
- * https://docs.astro.build/ja/guides/integrations-guide/sitemap/ からコピー
+ * https://docs.astro.build/ja/guides/integrations-guide/sitemap/#sitemap-link-in-robotstxt からコピー
  */
 
 import type { APIRoute } from "astro";
 
-const getRobotsTxt = (sitemapURL: URL) => `
-User-agent: *
-Allow: /
+const getRobotsTxt = (sitemapURL: URL) => `User-agent: *
+${import.meta.env.PREVIEW ? "Disallow" : "Allow"}: /
 
 Sitemap: ${sitemapURL.href}
 `;