diff --git a/homepage/.vitepress/config.mjs b/homepage/.vitepress/config.mjs
index da6d459..9428e8a 100644
--- a/homepage/.vitepress/config.mjs
+++ b/homepage/.vitepress/config.mjs
@@ -7,6 +7,20 @@ export default defineConfig({
   description:
     "Interactive figures and detailed results for deep mutational scanning of the HA from the clade 2.3.4.4b A/American Wigeon/South Carolina/USDA-000345-001/2021 (H5N1) strain.",
   base: "/Flu_H5_American-Wigeon_South-Carolina_2021-H5N1_DMS",
+  head: [
+    [
+      "script",
+      { async: "", src: "https://www.googletagmanager.com/gtag/js?id=G-P7HL8Q4F41" }
+    ],
+    [
+      "script",
+      {},
+      `window.dataLayer = window.dataLayer || [];
+      function gtag(){dataLayer.push(arguments);}
+      gtag("js", new Date());
+      gtag("config", "G-P7HL8Q4F41");`
+    ]
+  ],
   themeConfig: {
     // https://vitepress.dev/reference/default-theme-config
     nav: [