diff --git a/docs/index.html b/docs/index.html
index af9d434e..e83269a1 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -13,33 +13,19 @@
   <link rel="icon" type="image/png" href="favicon.png">
   <script type="text/javascript" src="assets/ghspa.js"></script>
 
-  <!-- Global site tag (gtag.js) - Google Analytics -->
-  <script async src="https://www.googletagmanager.com/gtag/js?id=UA-61945105-6"></script>
-  <script>
-    window.dataLayer = window.dataLayer || [];
-    function gtag(){dataLayer.push(arguments);}
-    gtag('js', new Date());
-
-    gtag('config', 'UA-61945105-6');
-  </script>
-  <!-- Yandex.Metrika counter -->
-  <script type="text/javascript" >
-    (function(m,e,t,r,i,k,a){m[i]=m[i]||function(){(m[i].a=m[i].a||[]).push(arguments)};
-      m[i].l=1*new Date();k=e.createElement(t),a=e.getElementsByTagName(t)[0],k.async=1,k.src=r,a.parentNode.insertBefore(k,a)})
-    (window, document, "script", "https://mc.yandex.ru/metrika/tag.js", "ym");
-
-    ym(51640115, "init", {
-      id:51640115,
-      clickmap:true,
-      trackLinks:true,
-      accurateTrackBounce:true,
-      webvisor:true
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-  <noscript><div><img src="https://mc.yandex.ru/watch/51640115" style="position:absolute; left:-9999px;" alt="" /></div></noscript>
-  <!-- /Yandex.Metrika counter -->
+  <!-- Google Tag Manager -->
+  <script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+  new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+  j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+  'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+  })(window,document,'script','dataLayer','GTM-K8MXX5F');</script>
+  <!-- End Google Tag Manager -->
 </head>
 <body>
+  <!-- Google Tag Manager (noscript) -->
+  <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-K8MXX5F"
+  height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
+  <!-- End Google Tag Manager (noscript) -->
   <ngx-landing-app></ngx-landing-app>
 </body>
 </html>
