diff --git a/src/Advertising.js b/src/Advertising.js
index 3276e06..f592ba2 100644
--- a/src/Advertising.js
+++ b/src/Advertising.js
@@ -36,7 +36,8 @@ export default class Advertising {
       typeof this.config.useAPS === 'undefined'
         ? typeof window.apstag !== 'undefined'
         : this.config.useAPS;
-    this.apsSlotType = this.config.aps && this.config.aps.simplerGPT ? 'gpt' : 'aps';
+    this.apsSlotType =
+      this.config.aps && this.config.aps.simplerGPT ? 'gpt' : 'aps';
     this.executePlugins('setup');
     const { slots, outOfPageSlots, queue, isPrebidUsed, isAPSUsed } = this;
     this.setupCustomEvents();
@@ -194,6 +195,8 @@ export default class Advertising {
         this.onError
       );
     }
+
+    this.displaySlots(id);
   }
 
   isConfigReady() {
@@ -367,20 +370,9 @@ export default class Advertising {
     }
   }
 
-  displaySlots() {
+  displaySlots(id) {
     this.executePlugins('displaySlots');
-    this.config.slots.forEach(({ id }) => {
-      window.googletag.display(id);
-    });
-  }
-
-  displayOutOfPageSlots() {
-    this.executePlugins('displayOutOfPageSlot');
-    if (this.config.outOfPageSlots) {
-      this.config.outOfPageSlots.forEach(({ id }) => {
-        window.googletag.display(id);
-      });
-    }
+    window.googletag.display(id);
   }
 
   refreshInterstitialSlot() {
@@ -425,8 +417,6 @@ export default class Advertising {
     pubads.enableSingleRequest();
 
     window.googletag.enableServices();
-    this.displaySlots();
-    this.displayOutOfPageSlots();
     this.refreshInterstitialSlot();
   }
 
diff --git a/src/Advertising.test.js b/src/Advertising.test.js
index 14e4f09..34cc41e 100644
--- a/src/Advertising.test.js
+++ b/src/Advertising.test.js
@@ -367,17 +367,10 @@ describe('When I instantiate an advertising main module, with Prebid', () => {
       void it('are enabled', () =>
         expect(global.googletag.enableServices).toHaveBeenCalledTimes(1)));
     //----------------------------------------------------------------------------------------------------
-    describe('the display method of GPT', () => {
-      it('is called for each slot', () =>
-        expect(global.googletag.display).toHaveBeenCalledTimes(2));
-      it('is called with the DIV ID of the “foo” ad', () =>
-        expect(global.googletag.display).toHaveBeenCalledWith(DIV_ID_FOO));
-      it('is called with the DIV ID of the “bar” ad', () =>
-        expect(global.googletag.display).toHaveBeenCalledWith(DIV_ID_BAR));
-    });
     describe('the slots of the advertising module instance', () =>
-      void it('are correct', () =>
-        expect(advertising.slots).toMatchSnapshot()));
+      void it('are correct', () => {
+        expect(advertising.slots).toMatchSnapshot();
+      }));
     describe('the GPT size mappings of the advertising module instance', () =>
       void it('are correct', () =>
         expect(advertising.gptSizeMappings).toMatchSnapshot()));
@@ -411,6 +404,13 @@ describe('When I instantiate an advertising main module, with Prebid', () => {
           expect(
             global.googletag.pubads().refresh.mock.calls
           ).toMatchSnapshot()));
+
+      describe('the display method of GPT', () => {
+        it('is called once', () =>
+          expect(global.googletag.display).toHaveBeenCalledTimes(1));
+        it('is called with the DIV ID of the “foo” ad', () =>
+          expect(global.googletag.display).toHaveBeenCalledWith(DIV_ID_FOO));
+      });
     });
     describe('and I activate the “foo” ad with a custom events object to collapse its slot', () => {
       let collapse;
@@ -467,9 +467,12 @@ describe('When I instantiate an advertising main module', () => {
     describe('the targeting for asynchronous GPT', () =>
       void it('is not set', () =>
         expect(global.pbjs.setTargetingForGPTAsync).toHaveBeenCalledTimes(0)));
-    describe('the ad slot', () =>
+    describe('the ad slot', () => {
       void it('is not refreshed', () =>
-        expect(global.googletag.pubads().refresh).toHaveBeenCalledTimes(0)));
+        expect(global.googletag.pubads().refresh).toHaveBeenCalledTimes(0));
+      void it('is not displayed', () =>
+        expect(global.googletag.pubads().display).toHaveBeenCalledTimes(0));
+    });
     describe('and I call the setup method', () => {
       beforeEach(() => advertising.setup());
       describe('a bid', () =>
@@ -573,12 +576,7 @@ describe('When I instantiate an advertising main module with plugins', () => {
     describe("the plugin's hook for GPT teardown", () =>
       void it('is not called', () =>
         expect(plugins[0].teardownGpt).toHaveBeenCalledTimes(0)));
-    describe("the plugin's hook for displaying slots", () =>
-      void it('is called', () =>
-        expect(plugins[0].displaySlots).toHaveBeenCalled()));
-    describe("the plugin's hook for displaying outOfPage slots", () =>
-      void it('is called', () =>
-        expect(plugins[0].displayOutOfPageSlot).toHaveBeenCalled()));
+
     describe("the plugin's hook for refreshing interstitial slot", () =>
       void it('is called', () =>
         expect(plugins[0].refreshInterstitialSlot).toHaveBeenCalled()));
@@ -822,14 +820,6 @@ describe('When I instantiate an advertising main module without Prebid.js or APS
       void it('are enabled', () =>
         expect(global.googletag.enableServices).toHaveBeenCalledTimes(1)));
     //----------------------------------------------------------------------------------------------------
-    describe('the display method of GPT', () => {
-      it('is called for each slot', () =>
-        expect(global.googletag.display).toHaveBeenCalledTimes(2));
-      it('is called with the DIV ID of the “foo” ad', () =>
-        expect(global.googletag.display).toHaveBeenCalledWith(DIV_ID_FOO));
-      it('is called with the DIV ID of the “bar” ad', () =>
-        expect(global.googletag.display).toHaveBeenCalledWith(DIV_ID_BAR));
-    });
     describe('the slots of the advertising module instance', () =>
       void it('are correct', () =>
         expect(advertising.slots).toMatchSnapshot()));
@@ -855,6 +845,12 @@ describe('When I instantiate an advertising main module without Prebid.js or APS
           expect(
             global.googletag.pubads().refresh.mock.calls
           ).toMatchSnapshot()));
+      describe('the display method of GPT', () => {
+        it('is called for each slot', () =>
+          expect(global.googletag.display).toHaveBeenCalledTimes(1));
+        it('is called with the DIV ID of the “foo” ad', () =>
+          expect(global.googletag.display).toHaveBeenCalledWith(DIV_ID_FOO));
+      });
     });
   });
   afterEach(() => {
diff --git a/src/__snapshots__/Advertising.test.js.snap b/src/__snapshots__/Advertising.test.js.snap
index 76ae1b4..6549171 100644
--- a/src/__snapshots__/Advertising.test.js.snap
+++ b/src/__snapshots__/Advertising.test.js.snap
@@ -247,19 +247,12 @@ Array [
                     Array [
                       "div-gpt-ad-foo",
                     ],
-                    Array [
-                      "div-gpt-ad-bar",
-                    ],
                   ],
                   "results": Array [
                     Object {
                       "type": "return",
                       "value": undefined,
                     },
-                    Object {
-                      "type": "return",
-                      "value": undefined,
-                    },
                   ],
                 },
                 "enableServices": [MockFunction] {
@@ -1040,26 +1033,7 @@ Object {
                   },
                 ],
               },
-              "display": [MockFunction] {
-                "calls": Array [
-                  Array [
-                    "div-gpt-ad-foo",
-                  ],
-                  Array [
-                    "div-gpt-ad-bar",
-                  ],
-                ],
-                "results": Array [
-                  Object {
-                    "type": "return",
-                    "value": undefined,
-                  },
-                  Object {
-                    "type": "return",
-                    "value": undefined,
-                  },
-                ],
-              },
+              "display": [MockFunction],
               "enableServices": [MockFunction] {
                 "calls": Array [
                   Array [],
@@ -1688,26 +1662,7 @@ Object {
                   },
                 ],
               },
-              "display": [MockFunction] {
-                "calls": Array [
-                  Array [
-                    "div-gpt-ad-foo",
-                  ],
-                  Array [
-                    "div-gpt-ad-bar",
-                  ],
-                ],
-                "results": Array [
-                  Object {
-                    "type": "return",
-                    "value": undefined,
-                  },
-                  Object {
-                    "type": "return",
-                    "value": undefined,
-                  },
-                ],
-              },
+              "display": [MockFunction],
               "enableServices": [MockFunction] {
                 "calls": Array [
                   Array [],
@@ -2546,19 +2501,12 @@ Array [
                     Array [
                       "div-gpt-ad-foo",
                     ],
-                    Array [
-                      "div-gpt-ad-bar",
-                    ],
                   ],
                   "results": Array [
                     Object {
                       "type": "return",
                       "value": undefined,
                     },
-                    Object {
-                      "type": "return",
-                      "value": undefined,
-                    },
                   ],
                 },
                 "enableServices": [MockFunction] {
@@ -3407,26 +3355,7 @@ Object {
                   },
                 ],
               },
-              "display": [MockFunction] {
-                "calls": Array [
-                  Array [
-                    "div-gpt-ad-foo",
-                  ],
-                  Array [
-                    "div-gpt-ad-bar",
-                  ],
-                ],
-                "results": Array [
-                  Object {
-                    "type": "return",
-                    "value": undefined,
-                  },
-                  Object {
-                    "type": "return",
-                    "value": undefined,
-                  },
-                ],
-              },
+              "display": [MockFunction],
               "enableServices": [MockFunction] {
                 "calls": Array [
                   Array [],
@@ -4055,26 +3984,7 @@ Object {
                   },
                 ],
               },
-              "display": [MockFunction] {
-                "calls": Array [
-                  Array [
-                    "div-gpt-ad-foo",
-                  ],
-                  Array [
-                    "div-gpt-ad-bar",
-                  ],
-                ],
-                "results": Array [
-                  Object {
-                    "type": "return",
-                    "value": undefined,
-                  },
-                  Object {
-                    "type": "return",
-                    "value": undefined,
-                  },
-                ],
-              },
+              "display": [MockFunction],
               "enableServices": [MockFunction] {
                 "calls": Array [
                   Array [],