diff --git a/www/layouts/default.vue b/www/layouts/default.vue
index e352787..200d403 100644
--- a/www/layouts/default.vue
+++ b/www/layouts/default.vue
@@ -24,12 +24,29 @@
     </b-navbar>
     <Nuxt />
     <b-row class="row-space footer">
-      <b-col md="2" offset-md="5">
-        <div class="copyright">
-          © 2020 toozhao.com
-        </div>
+      <b-col md="4" offset-md="4">
+        <span class="copyright">
+          © 2020 toozhao.com <img :src="myBadge" class="my-badge"/>
+        </span>
+
       </b-col>
     </b-row>
+    <div v-if="isProduction">
+      <!-- Global site tag (gtag.js) - Google Analytics -->
+      <script
+        async
+        src="https://www.googletagmanager.com/gtag/js?id=UA-5243064-21"
+      ></script>
+      <script>
+        window.dataLayer = window.dataLayer || [];
+        function gtag() {
+          dataLayer.push(arguments);
+        }
+        gtag("js", new Date());
+
+        gtag("config", "UA-5243064-21");
+      </script>
+    </div>
   </b-overlay>
 </template>
 
@@ -39,8 +56,14 @@ import { mapMutations } from "vuex";
 
 export default Vue.extend({
   computed: {
-    isLoading() {
+    isLoading(): boolean {
       return this.$store.state.loading.loading;
+    },
+    isProduction(): boolean {
+      return this.$config.env == "production";
+    },
+    myBadge(): string {
+      return `${this.$config.myBadge}/green.svg`
     }
   }
 });
@@ -67,6 +90,10 @@ html {
     align-items: center;
     justify-content: center;
   }
+  .my-badge {
+    display: inline;
+    margin-left: 5px;
+  }
 }
 *,
 *::before,
diff --git a/www/nuxt.config.js b/www/nuxt.config.js
index a567a1b..3a08fe3 100644
--- a/www/nuxt.config.js
+++ b/www/nuxt.config.js
@@ -67,6 +67,7 @@ export default {
     '/api/': process.env.NODE_ENV === 'production' ? 'https://badges.toozhao.com' : 'http://localhost:8080',
   },
   publicRuntimeConfig: {
+    env: process.env.NODE_ENV,
     baseURL: process.env.BASE_URL || 'http://localhost:3000',
     backendURL: process.env.NODE_ENV === 'production' ? 'https://badges.toozhao.com' : 'http://localhost:8080',
     myBadge: process.env.NODE_ENV === 'production' ? 'http://localhost:8080/badges/01EGTQ3JBFYS7VZG36SBPM0SA9' : 'https://badges.toozhao.com/badges/01EGTQ64XK7M48A67K9Y62J0QZ'