diff --git a/404.html b/404.html
index f77fd878a..b987d715b 100755
--- a/404.html
+++ b/404.html
@@ -8,6 +8,16 @@
     <link rel="shortcut icon" href="./assets/images/favicon.png">
     <!-- Global site tag (gtag.js) - Google Analytics -->
     <script async src="https://www.googletagmanager.com/gtag/js?id=UA-77253689-1"></script>
+    
+    <script>
+    var _hmt = _hmt || [];
+    (function() {
+      var hm = document.createElement("script");
+      hm.src = "https://hm.baidu.com/hm.js?c05bb16ea908292af9f6c513087a1cc3";
+      var s = document.getElementsByTagName("script")[0]; 
+      s.parentNode.insertBefore(hm, s);
+    })();
+    </script>
     <script>
     window.dataLayer = window.dataLayer || [];
 
diff --git a/cn/about.html b/cn/about.html
index db6baa455..dbdfa94f1 100644
--- a/cn/about.html
+++ b/cn/about.html
@@ -19,6 +19,16 @@
     <link rel="stylesheet" href="../assets/css/xenon-skins.css">
     <link rel="stylesheet" href="../assets/css/nav.css">
     <script src="../assets/js/jquery-1.11.1.min.js"></script>
+    
+    <script>
+    var _hmt = _hmt || [];
+    (function() {
+      var hm = document.createElement("script");
+      hm.src = "https://hm.baidu.com/hm.js?c05bb16ea908292af9f6c513087a1cc3";
+      var s = document.getElementsByTagName("script")[0]; 
+      s.parentNode.insertBefore(hm, s);
+    })();
+    </script>
     <!-- HTML5 shim and Respond.js IE8 support of HTML5 elements and media queries -->
     <!--[if lt IE 9]>
         <script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script>
diff --git a/cn/index.html b/cn/index.html
index 354fe0967..9ee49106b 100644
--- a/cn/index.html
+++ b/cn/index.html
@@ -10,6 +10,15 @@
         enable_page_level_ads: true
     });
     </script>
+    <script>
+    var _hmt = _hmt || [];
+    (function() {
+      var hm = document.createElement("script");
+      hm.src = "https://hm.baidu.com/hm.js?c05bb16ea908292af9f6c513087a1cc3";
+      var s = document.getElementsByTagName("script")[0]; 
+      s.parentNode.insertBefore(hm, s);
+    })();
+    </script>
     <meta charset="utf-8">
     <meta http-equiv="X-UA-Compatible" content="IE=edge">
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
diff --git a/en/about.html b/en/about.html
index 9a394b9bd..0152fb8a1 100644
--- a/en/about.html
+++ b/en/about.html
@@ -19,6 +19,16 @@
     <link rel="stylesheet" href="../assets/css/xenon-skins.css">
     <link rel="stylesheet" href="../assets/css/nav.css">
     <script src="../assets/js/jquery-1.11.1.min.js"></script>
+    
+    <script>
+    var _hmt = _hmt || [];
+    (function() {
+      var hm = document.createElement("script");
+      hm.src = "https://hm.baidu.com/hm.js?c05bb16ea908292af9f6c513087a1cc3";
+      var s = document.getElementsByTagName("script")[0]; 
+      s.parentNode.insertBefore(hm, s);
+    })();
+    </script>
     <!-- HTML5 shim and Respond.js IE8 support of HTML5 elements and media queries -->
     <!--[if lt IE 9]>
         <script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script>
diff --git a/en/index.html b/en/index.html
index 89495795e..e5be66f88 100644
--- a/en/index.html
+++ b/en/index.html
@@ -25,6 +25,16 @@
     <link rel="stylesheet" href="../assets/css/xenon-skins.css">
     <link rel="stylesheet" href="../assets/css/nav.css">
     <script src="../assets/js/jquery-1.11.1.min.js"></script>
+    
+    <script>
+    var _hmt = _hmt || [];
+    (function() {
+      var hm = document.createElement("script");
+      hm.src = "https://hm.baidu.com/hm.js?c05bb16ea908292af9f6c513087a1cc3";
+      var s = document.getElementsByTagName("script")[0]; 
+      s.parentNode.insertBefore(hm, s);
+    })();
+    </script>
     <!-- HTML5 shim and Respond.js IE8 support of HTML5 elements and media queries -->
     <!--[if lt IE 9]>
         <script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script>
diff --git a/index.html b/index.html
index 7005c7eab..f8a14497e 100644
--- a/index.html
+++ b/index.html
@@ -4,6 +4,16 @@
 <head>
     <link rel="shortcut icon" href="./assets/images/favicon.png">
     <script async src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>
+    
+    <script>
+    var _hmt = _hmt || [];
+    (function() {
+      var hm = document.createElement("script");
+      hm.src = "https://hm.baidu.com/hm.js?c05bb16ea908292af9f6c513087a1cc3";
+      var s = document.getElementsByTagName("script")[0]; 
+      s.parentNode.insertBefore(hm, s);
+    })();
+    </script>
     <script>
     (adsbygoogle = window.adsbygoogle || []).push({
         google_ad_client: "ca-pub-8550836177608334",
