diff --git a/.vitepress/config.ts b/.vitepress/config.ts
index 14e18334..81da5029 100644
--- a/.vitepress/config.ts
+++ b/.vitepress/config.ts
@@ -1,6 +1,6 @@
 import fs from 'fs'
 import path from 'path'
-import { defineConfigWithTheme } from 'vitepress'
+import { defineConfigWithTheme, type HeadConfig } from 'vitepress'
 import type { Config as ThemeConfig } from '@vue/theme'
 import baseConfig from '@vue/theme/config'
 import { headerPlugin } from './headerMdPlugin'
@@ -577,6 +577,17 @@ export const sidebar: ThemeConfig['sidebar'] = {
 // const i18n: ThemeConfig['i18n'] = {
 // }
 
+function inlineScript(file: string): HeadConfig {
+  return [
+    'script',
+    {},
+    fs.readFileSync(
+      path.resolve(__dirname, `./inlined-scripts/${file}`),
+      'utf-8'
+    )
+  ]
+}
+
 export default defineConfigWithTheme<ThemeConfig>({
   extends: baseConfig,
 
@@ -618,22 +629,8 @@ export default defineConfigWithTheme<ThemeConfig>({
         href: 'https://sponsors.vuejs.org'
       }
     ],
-    [
-      'script',
-      {},
-      fs.readFileSync(
-        path.resolve(__dirname, './inlined-scripts/restorePreference.js'),
-        'utf-8'
-      )
-    ],
-    [
-      'script',
-      {},
-      fs.readFileSync(
-        path.resolve(__dirname, './inlined-scripts/uwu.js'),
-        'utf-8'
-      )
-    ],
+    inlineScript('restorePreference.js'),
+    inlineScript('uwu.js'),
     [
       'script',
       {
@@ -649,7 +646,8 @@ export default defineConfigWithTheme<ThemeConfig>({
         src: 'https://vueschool.io/banner.js?affiliate=vuejs&type=top',
         async: 'true'
       }
-    ]
+    ],
+    inlineScript('perfops.js')
   ],
 
   themeConfig: {
diff --git a/.vitepress/inlined-scripts/perfops.js b/.vitepress/inlined-scripts/perfops.js
new file mode 100644
index 00000000..381ff494
--- /dev/null
+++ b/.vitepress/inlined-scripts/perfops.js
@@ -0,0 +1,9 @@
+;((d) => {
+  window.rum = { key: 'a9efvfeu' }
+  var script = d.createElement('script')
+  script.src = '/rom3.min.js'
+  script.type = 'text/javascript'
+  script.defer = true
+  script.async = true
+  d.getElementsByTagName('head')[0].appendChild(script)
+})(document)
diff --git a/src/public/rom3.min.js b/src/public/rom3.min.js
new file mode 100644
index 00000000..fa8b81b1
--- /dev/null
+++ b/src/public/rom3.min.js
@@ -0,0 +1 @@
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