diff --git a/js/app.js b/js/app.js
index 30a57d2b..bd1b839a 100644
--- a/js/app.js
+++ b/js/app.js
@@ -10,13 +10,15 @@ import fetch from 'isomorphic-fetch';
 /* eslint-enable */
 
 import ApiUrls from './constants/api_urls';
-import { updateApiUrls } from './constants/api_urls';
-import appConstants from './constants/application_constants';
+
+import AppConstants from './constants/application_constants';
 import getRoutes from './routes';
 import requests from './utils/requests';
 
+import { updateApiUrls } from './constants/api_urls';
 import { getSubdomainSettings } from './utils/constants_utils';
 import { initLogging } from './utils/error_utils';
+import { getSubdomain } from './utils/general_utils';
 
 import EventActions from './actions/event_actions';
 
@@ -48,11 +50,11 @@ requests.defaults({
 class AppGateway {
     start() {
         let settings;
-        let subdomain = window.location.host.split('.')[0];
+        let subdomain = getSubdomain();
 
         try {
             settings = getSubdomainSettings(subdomain);
-            appConstants.whitelabel = settings;
+            AppConstants.whitelabel = settings;
             updateApiUrls(settings.type, subdomain);
             this.load(settings);
         } catch(err) {
diff --git a/js/components/whitelabel/prize/prize_app.js b/js/components/whitelabel/prize/prize_app.js
index f187dd1c..e0be7707 100644
--- a/js/components/whitelabel/prize/prize_app.js
+++ b/js/components/whitelabel/prize/prize_app.js
@@ -9,6 +9,9 @@ import GlobalNotification from '../../global_notification';
 
 import getRoutes from './prize_routes';
 
+import { getSubdomain } from '../../../utils/general_utils';
+
+
 let RouteHandler = Router.RouteHandler;
 
 let PrizeApp = React.createClass({
@@ -16,7 +19,7 @@ let PrizeApp = React.createClass({
 
     render() {
         let header = null;
-        let subdomain = window.location.host.split('.')[0];
+        let subdomain = getSubdomain();
 
         let ROUTES = getRoutes(null, subdomain);
 
diff --git a/js/components/whitelabel/wallet/wallet_app.js b/js/components/whitelabel/wallet/wallet_app.js
index 2a235cef..bbc58689 100644
--- a/js/components/whitelabel/wallet/wallet_app.js
+++ b/js/components/whitelabel/wallet/wallet_app.js
@@ -10,6 +10,8 @@ import GlobalNotification from '../../global_notification';
 import getRoutes from './wallet_routes';
 import classNames from 'classnames';
 
+import { getSubdomain } from '../../../utils/general_utils';
+
 
 let RouteHandler = Router.RouteHandler;
 
@@ -18,7 +20,7 @@ let WalletApp = React.createClass({
     mixins: [Router.State],
 
     render() {
-        let subdomain = window.location.host.split('.')[0];
+        let subdomain = getSubdomain();
         let ROUTES = getRoutes(null, subdomain);
         let activeRoutes = this.getRoutes().map(elem => 'route--' + elem.name);
 
diff --git a/js/fetchers/license_fetcher.js b/js/fetchers/license_fetcher.js
index 6b0cada0..d5b296be 100644
--- a/js/fetchers/license_fetcher.js
+++ b/js/fetchers/license_fetcher.js
@@ -2,12 +2,15 @@
 
 import requests from '../utils/requests';
 
+import { getSubdomain } from '../utils/general_utils';
+
+
 let LicenseFetcher = {
     /**
      * Fetch the available licenses from the API (might be bound to the subdomain e.g. cc.ascribe.io).
      */
     fetch() {
-        return requests.get('licenses', {'subdomain': window.location.host.split('.')[0]});
+        return requests.get('licenses', {'subdomain': getSubdomain()});
     }
 };
 
diff --git a/js/fetchers/whitelabel_fetcher.js b/js/fetchers/whitelabel_fetcher.js
index 51f4ed0f..7a39f676 100644
--- a/js/fetchers/whitelabel_fetcher.js
+++ b/js/fetchers/whitelabel_fetcher.js
@@ -2,12 +2,15 @@
 
 import requests from '../utils/requests';
 
+import { getSubdomain } from '../utils/general_utils';
+
+
 let WhitelabelFetcher = {
     /**
      * Fetch the custom whitelabel data from the API.
      */
     fetch() {
-        return requests.get('whitelabel_settings', {'subdomain': window.location.host.split('.')[0]});
+        return requests.get('whitelabel_settings', {'subdomain': getSubdomain()});
     }
 };
 
diff --git a/js/third_party/intercom.js b/js/third_party/intercom.js
index ef284d7b..42ecccf7 100644
--- a/js/third_party/intercom.js
+++ b/js/third_party/intercom.js
@@ -3,6 +3,8 @@
 import alt from '../alt';
 import EventActions from '../actions/event_actions';
 
+import { getSubdomain } from '../utils/general_utils';
+
 
 class IntercomHandler {
     constructor() {
@@ -20,7 +22,7 @@ class IntercomHandler {
             /* eslint-enable */
             app_id: 'oboxh5w1',
             email: profile.email,
-            subdomain: window.location.host.split('.')[0],
+            subdomain: getSubdomain(),
             widget: {
                 activator: '#IntercomDefaultWidget'
             }  
diff --git a/js/third_party/notifications.js b/js/third_party/notifications.js
index 8887bbe2..eeac1bff 100644
--- a/js/third_party/notifications.js
+++ b/js/third_party/notifications.js
@@ -5,6 +5,8 @@ import EventActions from '../actions/event_actions';
 
 import NotificationActions from '../actions/notification_actions';
 
+import { getSubdomain } from '../utils/general_utils';
+
 
 class NotificationsHandler {
 
@@ -13,11 +15,11 @@ class NotificationsHandler {
         this.loaded = false;
     }
 
-    onProfileDidLoad(profile) {
+    onProfileDidLoad() {
         if (this.loaded) {
             return;
         }
-        let subdomain = window.location.host.split('.')[0];
+        let subdomain = getSubdomain();
         if (subdomain === 'ikonotv') {
             NotificationActions.fetchContractAgreementListNotifications().then(
                 (res) => {
diff --git a/js/utils/general_utils.js b/js/utils/general_utils.js
index ba2b7752..8f4aebbc 100644
--- a/js/utils/general_utils.js
+++ b/js/utils/general_utils.js
@@ -221,4 +221,15 @@ export function truncateTextAtCharIndex(text, charIndex, replacement = '...') {
     truncatedText += text.length > charIndex ? replacement : '';
 
     return truncatedText;
+}
+
+/**
+ * Extracts the user's subdomain from the browser's window.
+ * If no subdomain is found (for example on a naked domain), the default "www" is just assumed.
+ * @return {string} subdomain as a string
+ */
+export function getSubdomain() {
+    let { host } = window.location;
+    let matchedHost = host.match(/(([^.]+)\.)?(.*)\.(.*)/);
+    return matchedHost[2] || 'www';
 }
\ No newline at end of file