diff --git a/gatesbasicOperations.html b/gatesbasicOperations.html
index 2f1cf27..31380fa 100644
--- a/gatesbasicOperations.html
+++ b/gatesbasicOperations.html
@@ -9,7 +9,15 @@
   <meta content="Digital logic basic operations" name="The basic operation of gates in digital logics. There are basic operation 
   of different gates. Basic operation of AND, NAND OR gates">
   <meta content="" name="bca, IT, Digital logic, gates">
-
+<!-- Google tag (gtag.js) -->
+<script async src="https://www.googletagmanager.com/gtag/js?id=G-T3Q2Q1XTSN"></script>
+<script>
+  window.dataLayer = window.dataLayer || [];
+  function gtag(){dataLayer.push(arguments);}
+  gtag('js', new Date());
+
+  gtag('config', 'G-T3Q2Q1XTSN');
+</script>
   <!-- Favicons -->
   <link href="assets/img/favicon.png" rel="icon">
   <link href="assets/img/apple-touch-icon.png" rel="apple-touch-icon">
diff --git a/notGate.html b/notGate.html
index b7c140f..f3148ea 100644
--- a/notGate.html
+++ b/notGate.html
@@ -9,9 +9,15 @@
   <meta content="Digital logic basic operations" name="The basic operation of gates in digital logics. There are basic operation 
   of different gates. Basic operation of AND, NAND OR gates">
   <meta content="" name="bca, IT, Digital logic, gates">
-
-
-  <!-- Google Fonts -->
+<!-- Google tag (gtag.js) -->
+<script async src="https://www.googletagmanager.com/gtag/js?id=G-T3Q2Q1XTSN"></script>
+<script>
+  window.dataLayer = window.dataLayer || [];
+  function gtag(){dataLayer.push(arguments);}
+  gtag('js', new Date());
+
+  gtag('config', 'G-T3Q2Q1XTSN');
+</script>
   <link
     href="https://fonts.googleapis.com/css?family=Poppins:300,300i,400,400i,500,500i,600,600i,700,700i|Playfair+Display:400,400i,500,500i,600,600i,700,700i,900,900i"
     rel="stylesheet">
diff --git a/orGate.html b/orGate.html
index e12c476..a045591 100644
--- a/orGate.html
+++ b/orGate.html
@@ -10,7 +10,15 @@
   of different gates. Basic operation of AND, NAND OR gates">
   <meta content="" name="bca, IT, Digital logic, gates">
 
-
+<!-- Google tag (gtag.js) -->
+<script async src="https://www.googletagmanager.com/gtag/js?id=G-T3Q2Q1XTSN"></script>
+<script>
+  window.dataLayer = window.dataLayer || [];
+  function gtag(){dataLayer.push(arguments);}
+  gtag('js', new Date());
+
+  gtag('config', 'G-T3Q2Q1XTSN');
+</script>
   <!-- Google Fonts -->
   <link
     href="https://fonts.googleapis.com/css?family=Poppins:300,300i,400,400i,500,500i,600,600i,700,700i|Playfair+Display:400,400i,500,500i,600,600i,700,700i,900,900i"