diff --git a/src/pages/example/use-plugin.vue b/src/pages/example/use-plugin.vue
index f49f41a..0dfa1d1 100644
--- a/src/pages/example/use-plugin.vue
+++ b/src/pages/example/use-plugin.vue
@@ -26,6 +26,10 @@ export default class UsePlugin extends Vue {
 </script>
 
 <style lang="scss" scoped>
+h2 {
+  color: crimson;
+}
+
 .c {
   font-size: 20px;
 }
diff --git a/src/pages/example/user-agent.vue b/src/pages/example/user-agent.vue
new file mode 100644
index 0000000..2211499
--- /dev/null
+++ b/src/pages/example/user-agent.vue
@@ -0,0 +1,51 @@
+<template lang="pug">
+  div
+    h1.title
+      | user-agent
+    hr
+    h2 Nuxt.js 側で UA 判定した結果
+    p {{ message }}
+    hr
+    h2 ブラウザ→①→ SSR サーバー→②→ API サーバー
+    p {{ data }}
+</template>
+
+<script lang="ts">
+import { Component, Vue } from 'nuxt-property-decorator'
+import axios from 'axios'
+
+@Component
+export default class UserAgent extends Vue {
+  message: string = ''
+  data: string = ''
+
+  async asyncData(context) {
+    if (process.server) {
+      console.log(
+        'context.req.headers["user-agent"]:',
+        context.req.headers['user-agent']
+      )
+    } else {
+      console.log('navigator.userAgent:', navigator.userAgent)
+    }
+
+    // userAgent プロパティを context 内に追加します（context は `data` メソッドや `fetch` メソッド内で利用できます）
+    context.userAgent = process.server
+      ? context.req.headers['user-agent']
+      : navigator.userAgent
+
+    const { data } = await axios.get(`http://localhost:5000/headers`)
+
+    return {
+      message: context.userAgent,
+      data
+    }
+  }
+}
+</script>
+
+<style lang="scss" scoped>
+h2 {
+  color: crimson;
+}
+</style>
diff --git a/src/utilities/dynamic-import.ts b/src/utilities/dynamicImport.ts
similarity index 100%
rename from src/utilities/dynamic-import.ts
rename to src/utilities/dynamicImport.ts
diff --git a/src/utilities/index.ts b/src/utilities/index.ts
index 86b138a..400a49a 100644
--- a/src/utilities/index.ts
+++ b/src/utilities/index.ts
@@ -5,4 +5,4 @@
 export * from '@/utilities/cancelToken'
 export * from '@/utilities/auth'
 export * from '@/utilities/sleep'
-export * from '@/utilities/dynamic-import'
+export * from '@/utilities/dynamicImport'