diff --git a/LookingGlass.php b/LookingGlass.php
index 131be53..0e8f1d3 100644
--- a/LookingGlass.php
+++ b/LookingGlass.php
@@ -24,6 +24,13 @@ class LookingGlass
     public const SESSION_ERROR_MESSAGE = 'error_message';
     public const SESSION_CSRF          = 'CSRF';
 
+    public const METHOD_PING        = 'ping';
+    public const METHOD_PING6       = 'ping6';
+    public const METHOD_MTR         = 'mtr';
+    public const METHOD_MTR6        = 'mtr6';
+    public const METHOD_TRACEROUTE  = 'traceroute';
+    public const METHOD_TRACEROUTE6 = 'traceroute6';
+
     private const MTR_COUNT = 10;
 
     /**
diff --git a/backend.php b/backend.php
index ff8c10d..e02d363 100644
--- a/backend.php
+++ b/backend.php
@@ -28,24 +28,24 @@ if (isset($_SESSION[LookingGlass::SESSION_TARGET_HOST]) &&
     unset($_SESSION[LookingGlass::SESSION_CALL_BACKEND]);
 
 
-    switch ($_SESSION['METHOD']) {
-        case 'ping':
-            LookingGlass::ping($_SESSION['TARGET']);
+    switch ($_SESSION[LookingGlass::SESSION_TARGET_METHOD]) {
+        case LookingGlass::METHOD_PING:
+            LookingGlass::ping($_SESSION[LookingGlass::SESSION_TARGET_HOST]);
             break;
-        case 'ping6':
-            LookingGlass::ping6($_SESSION['TARGET']);
+        case LookingGlass::METHOD_PING6:
+            LookingGlass::ping6($_SESSION[LookingGlass::SESSION_TARGET_HOST]);
             break;
-        case 'mtr':
-            LookingGlass::mtr($_SESSION['TARGET']);
+        case LookingGlass::METHOD_MTR:
+            LookingGlass::mtr($_SESSION[LookingGlass::SESSION_TARGET_HOST]);
             break;
-        case 'mtr6':
-            LookingGlass::mtr6($_SESSION['TARGET']);
+        case LookingGlass::METHOD_MTR6:
+            LookingGlass::mtr6($_SESSION[LookingGlass::SESSION_TARGET_HOST]);
             break;
-        case 'traceroute':
-            LookingGlass::traceroute($_SESSION['TARGET']);
+        case LookingGlass::METHOD_TRACEROUTE:
+            LookingGlass::traceroute($_SESSION[LookingGlass::SESSION_TARGET_HOST]);
             break;
-        case 'traceroute6':
-            LookingGlass::traceroute6($_SESSION['TARGET']);
+        case LookingGlass::METHOD_TRACEROUTE6:
+            LookingGlass::traceroute6($_SESSION[LookingGlass::SESSION_TARGET_HOST]);
             break;
     }
 }
diff --git a/config.dist.php b/config.dist.php
index 8b34072..8ef8f42 100644
--- a/config.dist.php
+++ b/config.dist.php
@@ -1,5 +1,5 @@
-<?php
-declare(strict_types=1);
+<?php declare(strict_types=1);
+use Hybula\LookingGlass;
 
 // Define the HTML title;
 const LG_TITLE = 'Looking Glass';
@@ -36,7 +36,14 @@ const LG_IPV4 = '127.0.0.1';
 const LG_IPV6 = '::1';
 
 // Define the methods that can be used by visitors to test it out;
-const LG_METHODS = ['ping', 'ping6', 'mtr', 'mtr6', 'traceroute', 'traceroute6'];
+const LG_METHODS = [
+    LookingGlass::METHOD_PING,
+    LookingGlass::METHOD_PING6,
+    LookingGlass::METHOD_MTR,
+    LookingGlass::METHOD_MTR6,
+    LookingGlass::METHOD_TRACEROUTE,
+    LookingGlass::METHOD_TRACEROUTE6,
+];
 
 // Define other looking glasses, this is useful if you have multiple networks and looking glasses;
 const LG_LOCATIONS = [