diff --git a/index.js b/index.js
index 69165a7..0188519 100644
--- a/index.js
+++ b/index.js
@@ -3,74 +3,44 @@
  * Required modules
  */
 
+const os = require('os');
 const http = require( 'http' )
+const cluster = require('cluster')
 const ip = require( './lib/ip' )
+const app = require( './lib/app' )
 const Bot = require( 'messenger-bot' )
-const ip2countrify = require( 'ip2countrify' )
 const bot = new Bot( require( './config.json' ) )
 
 
-bot.on( 'error', ( error ) => {
-    console.log( error.message )
-} )
-
-
 bot.on( 'message', ( payload, reply ) => {
-    const text = payload.message.text
 
-    if ( ! text ) {
+    const msg = payload.message.text
+
+    if ( ! msg ) {
         return
     }
 
     // Invalid IP
-    if ( ! ip.isValid( text ) ) {
-
-        if ( text.toLowerCase().includes( 'thank' ) ) {
-            return reply( {
-                'text': "👍\n\nYou are welcome."
-            } )
-        }
-
-        return reply( {
-            'text': "👋\n\nTell me a valid IP,\ni will map the right country."
-        } )
+    if ( ! ip.isValid( msg ) ) {
+        return app.handleInvalidIP( msg, reply )
     }
 
-    // Reply private IP
-    if ( ip.isPrivate( text ) ) {
-        return reply( {
-            'text': "😝\n\nReserved IP address?\nYou are kidding me."
-        } )
+    // Private IP
+    if ( ip.isPrivate( msg ) ) {
+        return app.handlePrivateIP( msg, reply )
     }
 
     // Lookup IP
-    ip2countrify.lookup( text, ( ip, result, error ) => {
-
-        if ( error ) {
-            return reply( {
-                'text': "😢\n\nNothing found for this IP."
-            } )
-        }
-
-        const countryName = result.countryName
-        const countryCode = result.countryCode.toLowerCase()
+    return app.lookupValidIP( msg, reply )
 
-        reply( {
-            'attachment': {
-                'type': 'template',
-                'payload': {
-                    'template_type': 'generic',
-                    'elements': [ {
-                        'title': countryName,
-                        'image_url': `https://raw.githubusercontent.com/hjnilsson/country-flags/master/png1000px/${countryCode}.png`
-                    } ]
-                }
-            }
-        } )
+} )
 
-    } )
 
-} )
+bot.on( 'error', ( error ) => console.log( error.message ) )
 
 
-http.createServer( bot.middleware() ).listen( 3000 )
+if ( cluster.isMaster ) {
+    os.cpus().forEach( _ => cluster.fork( _ ) )
+} else {
+    http.createServer( bot.middleware() ).listen( 3000 )
+}
diff --git a/lib/app.js b/lib/app.js
new file mode 100644
index 0000000..3c327d9
--- /dev/null
+++ b/lib/app.js
@@ -0,0 +1,91 @@
+
+/**
+ * Required modules
+ */
+
+const ip2countrify = require( 'ip2countrify' )
+
+
+module.exports = {
+
+
+    /**
+     * Handle requests with a invalid IP address
+     *
+     * @param   {String}    msg    Incoming message
+     * @param   {Function}  reply  Bot instance function
+     * @return  void
+     */
+
+    handleInvalidIP( msg, reply ) {
+
+        if ( msg.toLowerCase().includes( 'thank' ) ) {
+            return reply( {
+                'text': "👍\n\nYou are welcome."
+            } )
+        }
+
+        return reply( {
+            'text': "👋\n\nTell me a valid IP,\nI will map the right country."
+        } )
+
+    },
+
+
+    /**
+     * Handle requests with a private IP address
+     *
+     * @param   {String}    ip     Incoming IP address
+     * @param   {Function}  reply  Bot instance function
+     * @return  void
+     */
+
+    handlePrivateIP( ip, reply ) {
+
+        return reply( {
+            'text': "😝\n\nReserved IP address?\nYou are kidding me."
+        } )
+
+    },
+
+
+    /**
+     * Start lookup for a valid IP address
+     *
+     * @param   {String}    ip     Incoming IP address
+     * @param   {Function}  reply  Bot instance function
+     * @return  void
+     */
+
+    lookupValidIP( ip, reply ) {
+
+        ip2countrify.lookup( ip, ( ip, result, error ) => {
+
+            if ( error ) {
+                return reply( {
+                    'text': "😢\n\nNothing found for this IP."
+                } )
+            }
+
+            const countryName = result.countryName
+            const countryCode = result.countryCode.toLowerCase()
+
+            return reply( {
+                'attachment': {
+                    'type': 'template',
+                    'payload': {
+                        'template_type': 'generic',
+                        'elements': [ {
+                            'title': countryName,
+                            'image_url': `https://raw.githubusercontent.com/hjnilsson/country-flags/master/png1000px/${countryCode}.png`
+                        } ]
+                    }
+                }
+            } )
+
+        } )
+
+    }
+
+
+}
diff --git a/package.json b/package.json
index 901f475..6151f87 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ip2country-bot",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "description": "Messenger Bot for IP 2 Country",
   "main": "index.js",
   "private": true,
@@ -14,8 +14,8 @@
     "messenger-bot": "^2.3.0"
   },
   "devDependencies": {
-    "config-leaf": "^0.2.0",
-    "eslint": "^3.1.1"
+    "config-leaf": "^0.3.0",
+    "eslint": "^3.3.0"
   },
   "scripts": {
     "test": "npm outdated && eslint .",