diff --git a/src/application/controllers/appointments.php b/src/application/controllers/appointments.php
index 717c941a..7636e11a 100755
--- a/src/application/controllers/appointments.php
+++ b/src/application/controllers/appointments.php
@@ -417,25 +417,19 @@ class Appointments extends CI_Controller {
                 if ($post_data['manage_mode'] == FALSE) {
                     $customer_title = $this->lang->line('appointment_booked');
                     $customer_message = $this->lang->line('thank_you_for_appointment');
-                    $customer_link = $this->config->item('base_url') . '/index.php/appointments/index/'
-                            . $appointment['hash'];
-
                     $provider_title = $this->lang->line('appointment_added_to_your_plan');
                     $provider_message = $this->lang->line('appointment_link_description');
-                    $provider_link = $this->config->item('base_url') . '/index.php/backend/index/'
-                            . $appointment['hash'];
+
                 } else {
                     $customer_title = $this->lang->line('appointment_changes_saved');
                     $customer_message = '';
-                    $customer_link = $this->config->item('base_url') . '/index.php/appointments/index/'
-                            . $appointment['hash'];
-
                     $provider_title = $this->lang->line('appointment_details_changed');
                     $provider_message = '';
-                    $provider_link = $this->config->item('base_url') . '/index.php/backend/index/'
-                            . $appointment['hash'];
                 }
 
+				$customer_link = site_url('appointments/index/' . $appointment['hash']);
+				$provider_link = site_url('backend/index/' . $appointment['hash']);
+
 				$send_customer = filter_var($this->settings_model->get_setting('customer_notifications'),
 						FILTER_VALIDATE_BOOLEAN);
 
diff --git a/src/application/controllers/backend.php b/src/application/controllers/backend.php
index 23a8f634..eadde513 100644
--- a/src/application/controllers/backend.php
+++ b/src/application/controllers/backend.php
@@ -42,7 +42,7 @@ class Backend extends CI_Controller {
      * appear when the page loads.
      */
     public function index($appointment_hash = '') {
-        $this->session->set_userdata('dest_url', $this->config->item('base_url') . '/index.php/backend');
+        $this->session->set_userdata('dest_url', site_url('backend'));
         if (!$this->has_privileges(PRIV_APPOINTMENTS)) return;
 
         $this->load->model('appointments_model');
@@ -92,7 +92,7 @@ class Backend extends CI_Controller {
      * In this page the user can manage all the customer records of the system.
      */
     public function customers() {
-        $this->session->set_userdata('dest_url', $this->config->item('base_url') . '/index.php/backend/customers');
+        $this->session->set_userdata('dest_url', site_url('backend/customers'));
     	if (!$this->has_privileges(PRIV_CUSTOMERS)) return;
 
         $this->load->model('providers_model');
@@ -126,7 +126,7 @@ class Backend extends CI_Controller {
      * from the backend services page.
      */
     public function services() {
-        $this->session->set_userdata('dest_url', $this->config->item('base_url') . '/index.php/backend/services');
+        $this->session->set_userdata('dest_url', site_url('backend/services'));
         if (!$this->has_privileges(PRIV_SERVICES)) return;
 
         $this->load->model('customers_model');
@@ -156,7 +156,7 @@ class Backend extends CI_Controller {
      * the page where the admin defines which service can each provider provide.
      */
     public function users() {
-        $this->session->set_userdata('dest_url', $this->config->item('base_url') . '/index.php/backend/users');
+        $this->session->set_userdata('dest_url', site_url('backend/users'));
         if (!$this->has_privileges(PRIV_USERS)) return;
 
         $this->load->model('providers_model');
@@ -191,7 +191,7 @@ class Backend extends CI_Controller {
      * installation (core settings like company name, book timeout etc).
      */
     public function settings() {
-        $this->session->set_userdata('dest_url', $this->config->item('base_url') . '/index.php/backend/settings');
+        $this->session->set_userdata('dest_url', site_url('backend/settings'));
         if (!$this->has_privileges(PRIV_SYSTEM_SETTINGS, FALSE)
                 && !$this->has_privileges(PRIV_USER_SETTINGS)) return;
 
@@ -241,7 +241,7 @@ class Backend extends CI_Controller {
         $user_id = $this->session->userdata('user_id');
         if ($user_id == FALSE) { // User not logged in, display the login view.
             if ($redirect) {
-                header('Location: ' . $this->config->item('base_url') . '/index.php/user/login');
+                header('Location: ' . site_url('user/login'));
             }
             return FALSE;
         }
@@ -251,7 +251,7 @@ class Backend extends CI_Controller {
         $role_priv = $this->db->get_where('ea_roles', array('slug' => $role_slug))->row_array();
         if ($role_priv[$page] < PRIV_VIEW) { // User does not have the permission to view the page.
              if ($redirect) {
-                header('Location: ' . $this->config->item('base_url') . '/index.php/user/no_privileges');
+                header('Location: ' . site_url('user/no_privileges'));
             }
             return FALSE;
         }
diff --git a/src/application/controllers/backend_api.php b/src/application/controllers/backend_api.php
index f793d9ea..26fbd398 100644
--- a/src/application/controllers/backend_api.php
+++ b/src/application/controllers/backend_api.php
@@ -208,25 +208,17 @@ class Backend_api extends CI_Controller {
                 if (!$manage_mode) {
                     $customer_title = $this->lang->line('appointment_booked');
                     $customer_message = $this->lang->line('thank_you_for_appointment');
-                    $customer_link = $this->config->item('base_url') . '/index.php/appointments/index/'
-                            . $appointment['hash'];
-
                     $provider_title = $this->lang->line('appointment_added_to_your_plan');
                     $provider_message = $this->lang->line('appointment_link_description');
-                    $provider_link = $this->config->item('base_url') . '/index.php/backend/index/'
-                            . $appointment['hash'];
                 } else {
                     $customer_title = $this->lang->line('appointment_changes_saved');
                     $customer_message = '';
-                    $customer_link = $this->config->item('base_url') . '/index.php/appointments/index/'
-                            . $appointment['hash'];
-
                     $provider_title = $this->lang->line('appointment_details_changed');
                     $provider_message = '';
-                    $provider_link = $this->config->item('base_url') . '/index.php/backend/index/'
-                            . $appointment['hash'];
                 }
 
+                $customer_link = site_url('appointments/index/' . $appointment['hash']);
+                $provider_link = site_url('backend/index/' . $appointment['hash']);
 
                 $send_customer = $this->settings_model->get_setting('customer_notifications');
 
diff --git a/src/application/controllers/test.php b/src/application/controllers/test.php
index bdaed42a..4ffd3f0f 100644
--- a/src/application/controllers/test.php
+++ b/src/application/controllers/test.php
@@ -38,9 +38,9 @@ class Test extends CI_Controller {
     public function index() {
         // User must be logged in as an admin in order to run the tests.
         $this->load->library('session');
-        $this->session->set_userdata('dest_url', $this->config->item('base_url') . '/index.php/test');
+        $this->session->set_userdata('dest_url', site_url('test'));
         if ($this->session->userdata('role_slug') != DB_SLUG_ADMIN) {
-            header('Location: ' . $this->config->item('base_url') . '/index.php/user/login');
+            header('Location: ' . site_url('user/login'));
             return;
         }
 
diff --git a/src/application/controllers/user.php b/src/application/controllers/user.php
index b5cddce6..27f3321c 100644
--- a/src/application/controllers/user.php
+++ b/src/application/controllers/user.php
@@ -39,7 +39,7 @@ class User extends CI_Controller {
      * The default method will redirect the browser to the user/login URL.
      */
     public function index() {
-        header('Location: ' . $this->config->item('base_url') . '/index.php/user/login');
+        header('Location: ' . site_url('user/login'));
     }
 
     /**
@@ -52,7 +52,7 @@ class User extends CI_Controller {
         $view['dest_url'] = $this->session->userdata('dest_url');
 
         if (!$view['dest_url']) {
-            $view['dest_url'] = $view['base_url'] . '/index.php/backend';
+            $view['dest_url'] = site_url('backend');
         }
 
         $view['company_name'] = $this->settings_model->get_setting('company_name');
diff --git a/src/application/libraries/google_sync.php b/src/application/libraries/google_sync.php
index ce3c236a..1055a54c 100644
--- a/src/application/libraries/google_sync.php
+++ b/src/application/libraries/google_sync.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); 
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 
 /* ----------------------------------------------------------------------------
  * Easy!Appointments - Open Source Web Scheduler
@@ -50,7 +50,7 @@ class Google_Sync {
         $this->client->setClientId(Config::GOOGLE_CLIENT_ID);
         $this->client->setClientSecret(Config::GOOGLE_CLIENT_SECRET);
         $this->client->setDeveloperKey(Config::GOOGLE_API_KEY);
-        $this->client->setRedirectUri($this->CI->config->item('base_url') . '/index.php/google/oauth_callback');
+        $this->client->setRedirectUri(site_url('google/oauth_callback'));
 
         $this->service = new Google_CalendarService($this->client);
     }
diff --git a/src/application/views/appointments/book.php b/src/application/views/appointments/book.php
index a694be30..5050828d 100644
--- a/src/application/views/appointments/book.php
+++ b/src/application/views/appointments/book.php
@@ -141,8 +141,7 @@
                                 </div>
                                 <div class="col-xs-12 col-sm-2">
                                     <form id="cancel-appointment-form" method="post"
-                                            action="' . $this->config->item('base_url')
-                                            . '/index.php/appointments/cancel/' . $appointment_data['hash'] . '">
+                                            action="' . site_url('appointments/cancel/' . $appointment_data['hash']) . '">
                                         <input type="hidden" name="csrfToken" value="' . $this->security->get_csrf_hash() . '" />
                                         <textarea name="cancel_reason" style="display:none"></textarea>
                                         <button id="cancel-appointment" class="btn btn-default">' .
@@ -381,7 +380,7 @@
                                     CAPTCHA
                                     <small class="glyphicon glyphicon-refresh"></small>
                                 </h4>
-                                <img class="captcha-image" src="<?php echo $this->config->item('base_url'); ?>/index.php/captcha">
+                                <img class="captcha-image" src="<?php echo site_url('captcha'); ?>">
                                 <input class="captcha-text" type="text" value="" />
                                 <span id="captcha-hint" class="help-block" style="opacity:0">&nbsp;</span>
                             </div>
@@ -423,7 +422,7 @@
     		        </span>
                     <?php if ($this->session->userdata('user_id')): ?>
                         |
-                        <a href="<?php echo $this->config->item('base_url'); ?>/index.php/backend">
+                        <a href="<?php echo site_url('backend'); ?>">
                             <?php echo $this->lang->line('backend_section'); ?>
                         </a>
                     <?php endif; ?>
diff --git a/src/application/views/backend/footer.php b/src/application/views/backend/footer.php
index f89111fc..95c29611 100644
--- a/src/application/views/backend/footer.php
+++ b/src/application/views/backend/footer.php
@@ -15,7 +15,7 @@
         	<?php echo ucfirst($this->config->item('language')); ?>
         </span>
         |
-        <a href="<?php echo $base_url; ?>/index.php/appointments">
+        <a href="<?php echo site_url('appointments'); ?>">
             <?php echo $this->lang->line('go_to_booking_page') ?>
         </a>
     </div>
diff --git a/src/application/views/general/error404.php b/src/application/views/general/error404.php
index 94203ffa..a6f5e43d 100644
--- a/src/application/views/general/error404.php
+++ b/src/application/views/general/error404.php
@@ -113,7 +113,7 @@
             <?php echo $this->lang->line('book_appointment_title'); ?>
         </a>
 
-        <a href="<?php echo $this->config->item('base_url'); ?>/index.php/backend" class="btn btn-danger btn-large">
+        <a href="<?php echo site_url('backend'); ?>" class="btn btn-danger btn-large">
             <span class="glyphicon glyphicon-wrench"></span>
             <?php echo $this->lang->line('backend_section'); ?>
         </a>
diff --git a/src/application/views/user/forgot_password.php b/src/application/views/user/forgot_password.php
index cde1a0b4..e9e10bb1 100644
--- a/src/application/views/user/forgot_password.php
+++ b/src/application/views/user/forgot_password.php
@@ -100,7 +100,7 @@
 
                     $('.alert').removeClass('hidden alert-danger alert-success');
                     $('#get-new-password').prop('disabled', false);
-                    
+
                     if (!GeneralFunctions.handleAjaxExceptions(response)) return;
 
                     if (response == GlobalVariables.AJAX_SUCCESS) {
@@ -138,7 +138,7 @@
                 <?php echo $this->lang->line('regenerate_password'); ?>
             </button>
 
-            <a href="<?php echo $base_url; ?>/index.php/user/login" class="user-login">
+            <a href="<?php echo site_url('user/login'); ?>" class="user-login">
                 <?php echo $this->lang->line('go_to_login'); ?></a>
         </form>
     </div>
diff --git a/src/application/views/user/login.php b/src/application/views/user/login.php
index c2b7da38..1646546c 100644
--- a/src/application/views/user/login.php
+++ b/src/application/views/user/login.php
@@ -140,7 +140,7 @@
 
             <br><br>
 
-            <a href="<?php echo $base_url; ?>/index.php/user/forgot_password" class="forgot-password">
+            <a href="<?php echo site_url('user/forgot_password'); ?>" class="forgot-password">
             	<?php echo $this->lang->line('forgot_your_password'); ?></a>
             |
             <span id="select-language" class="label label-success">
diff --git a/src/application/views/user/logout.php b/src/application/views/user/logout.php
index 8754f20c..e3bac1b3 100644
--- a/src/application/views/user/logout.php
+++ b/src/application/views/user/logout.php
@@ -71,12 +71,12 @@
 
         <br>
 
-        <a href="<?php echo $this->config->item('base_url'); ?>" class="btn btn-primary btn-large">
+        <a href="<?php echo site_url(); ?>" class="btn btn-primary btn-large">
             <span class="glyphicon glyphicon-calendar"></span>
             <?php echo $this->lang->line('book_appointment_title'); ?>
         </a>
 
-        <a href="<?php echo $this->config->item('base_url'); ?>/index.php/backend" class="btn btn-danger btn-large">
+        <a href="<?php echo site_url('backend'); ?>" class="btn btn-danger btn-large">
             <span class="glyphicon glyphicon-home"></span>
             <?php echo $this->lang->line('backend_section'); ?>
         </a>
diff --git a/src/application/views/user/no_privileges.php b/src/application/views/user/no_privileges.php
index 3c486559..f1723d3f 100644
--- a/src/application/views/user/no_privileges.php
+++ b/src/application/views/user/no_privileges.php
@@ -70,7 +70,7 @@
 
         <br>
 
-        <a href="<?php echo $this->config->item('base_url'); ?>/index.php/backend" class="btn btn-success btn-large">
+        <a href="<?php echo site_url('backend') ?>" class="btn btn-success btn-large">
             <i class="icon-calendar icon-white"></i>
             <?php echo $this->lang->line('backend_calendar'); ?>
         </a>