diff --git a/extensions/doPlugins_global.js b/extensions/doPlugins_global.js
index ff6a26e1..5465c1fb 100644
--- a/extensions/doPlugins_global.js
+++ b/extensions/doPlugins_global.js
@@ -52,7 +52,7 @@ s._utils = {
     },
 
     setSportDatencenter: function () {
-        if (window.document.domain.includes('sport.bild.de') || window.document.domain.includes('sportdaten.sportbild.bild.de')){
+        if (window.location.hostname.includes('sport.bild.de') || window.location.hostname.includes('sportdaten.sportbild.bild.de')){
             window.utag.data.page_document_type = window.location.pathname.includes('/liveticker/') ? 'live-sport' : 'sportdaten';
             return window.utag.data.page_document_type;
         }
@@ -178,7 +178,7 @@ s._articleViewTypeObj = {
     // Same domain check including subdomains.
     isFromInternal: function (referrer) {
         const referringDomain = s._utils.getDomainFromURLString(referrer);
-        const domain = window.document.domain;
+        const domain = window.location.hostname;
         const referringDomainSegments = referringDomain.split('.');
         const documentDomainSegments = domain.split('.');
 
diff --git a/tests/doplugins/doplugins_article_view_type.test.js b/tests/doplugins/doplugins_article_view_type.test.js
index 0f8b3cb9..23b42d6f 100644
--- a/tests/doplugins/doplugins_article_view_type.test.js
+++ b/tests/doplugins/doplugins_article_view_type.test.js
@@ -116,14 +116,14 @@ describe('articleViewType()', () => {
 
         it('should return TRUE if referring domain is from the same domain', function () {
             const anyDomain = 'any-domain.com';
-            window.document.domain = anyDomain;
+            window.location.hostname = anyDomain;
             getDomainFromURLStringMock.mockReturnValue(anyDomain);
             const result = s._articleViewTypeObj.isFromInternal(anyReferrer);
             expect(result).toBe(true);
         });
 
         it('should return FALSE if referring domain is NOT from the same domain', function () {
-            window.document.domain = 'any-domain.com';
+            window.location.hostname = 'any-domain.com';
             getDomainFromURLStringMock.mockReturnValue('any-other-domain.com');
             const result = s._articleViewTypeObj.isFromInternal(anyReferrer);
             expect(result).toBe(false);
@@ -131,7 +131,7 @@ describe('articleViewType()', () => {
 
         it('should return TRUE if referring domain is from sub domain', function () {
             const anyDomain = 'any-domain.com';
-            window.document.domain = anyDomain;
+            window.location.hostname = anyDomain;
             getDomainFromURLStringMock.mockReturnValue(`any-sub-domain.${anyDomain}`);
             const result = s._articleViewTypeObj.isFromInternal(anyReferrer);
             expect(result).toBe(true);
@@ -139,7 +139,7 @@ describe('articleViewType()', () => {
 
         it('should return TRUE if referring domain is from sub domain sportbild', function () {
             const anyDomain = 'sportbild.bild.de';
-            window.document.domain = anyDomain;
+            window.location.hostname = anyDomain;
             getDomainFromURLStringMock.mockReturnValue(anyDomain);
             const result = s._articleViewTypeObj.isFromInternal(anyReferrer);
             expect(result).toBe(true);
@@ -285,7 +285,7 @@ describe('articleViewType()', () => {
             const anyDomain = 'www.any-domain.de';
             const referrer = `https://${anyDomain}`;
             cleanUpReferrerMock.mockReturnValue(referrer);
-            window.document.domain = anyDomain;
+            window.location.hostname = anyDomain;
             const result = s._articleViewTypeObj.isFromHome(referrer);
             expect(result).toBe(true);
         });
@@ -294,7 +294,7 @@ describe('articleViewType()', () => {
             const anyDomain = 'www.any-domain.de';
             const referrer = `https://${anyDomain}/any-path`;
             cleanUpReferrerMock.mockReturnValue(referrer);
-            window.document.domain = anyDomain;
+            window.location.hostname = anyDomain;
             const result = s._articleViewTypeObj.isFromHome(referrer);
             expect(result).toBe(false);
         });
diff --git a/tests/doplugins/doplugins_bild_page_name.test.js b/tests/doplugins/doplugins_bild_page_name.test.js
index ceb25bf9..14e5ac7a 100644
--- a/tests/doplugins/doplugins_bild_page_name.test.js
+++ b/tests/doplugins/doplugins_bild_page_name.test.js
@@ -107,19 +107,19 @@ describe('_bildPageNameObj', () => {
 
     describe('isSportDatencenterTyp', () => {
         it('should be false if Domain is not sport', () => {
-            window.document.domain = 'any-sport.domain.de';
+            window.location.hostname = 'any-sport.domain.de';
             const returnValue = s._bildPageNameObj.isSportDatencenterTyp(s);
             expect(returnValue).toBe(false);
         });
 
         it('should be sportdaten if Domain is sport.bild.de', () => {
-            window.document.domain = 'sport.bild.de';
+            window.location.hostname = 'sport.bild.de';
             const returnValue = s._bildPageNameObj.isSportDatencenterTyp(s);
             expect(returnValue).toBe('sportdaten');
         });
 
         it('should be sportdaten if Domain is sportdaten.sportbild.bild.de', () => {
-            window.document.domain = 'sportdaten.sportbild.bild.de';
+            window.location.hostname = 'sportdaten.sportbild.bild.de';
             const returnValue = s._bildPageNameObj.isSportDatencenterTyp(s);
             expect(returnValue).toBe('sportdaten');
         });
@@ -246,7 +246,7 @@ describe('_bildPageNameObj', () => {
 
         it('should set relevant data if isSportdatencentertyp live-sport is true', () => {
             window.utag.data.page_id = '12345678';
-            window.document.domain = 'www.sport.bild.de';
+            window.location.hostname = 'www.sport.bild.de';
             window.location.pathname = 'any/path/liveticker/';
 
             s._bildPageNameObj.setPageName(s);
@@ -258,7 +258,7 @@ describe('_bildPageNameObj', () => {
 
         it('should set relevant data if isSportdatencentertyp sportdaten is true', () => {
             window.utag.data.page_id = '12345678';
-            window.document.domain = 'www.sport.bild.de';
+            window.location.hostname = 'www.sport.bild.de';
             window.location.pathname = 'any/path/';
             
             s._bildPageNameObj.setPageName(s);
diff --git a/tests/mocks/browserMocks.js b/tests/mocks/browserMocks.js
index 5a35efad..50c9fc9b 100644
--- a/tests/mocks/browserMocks.js
+++ b/tests/mocks/browserMocks.js
@@ -21,7 +21,8 @@ function createWindowMock() {
             referrer: '',
             domain: '',
             location: {
-                pathname: ''
+                pathname: '',
+                hostname: ''
             }
         },
         navigator: {
@@ -39,6 +40,7 @@ function createWindowMock() {
             hash: '',
             search: '',
             pathname: '',
+            hostname: ''
         }
     };
 }