diff --git a/docusaurus.config.js b/docusaurus.config.js
index ff21f9d..ff003d5 100644
--- a/docusaurus.config.js
+++ b/docusaurus.config.js
@@ -80,6 +80,14 @@ const config = {
             require.resolve("./src/css/custom.css"),
           ],
         },
+        ...(process.env.GTAG
+          ? {
+            gtag: {
+              trackingID: process.env.GTAG,
+              anonymizeIP: true,
+            },
+          }
+          : {}),
       }),
     ],
   ],