diff --git a/examples/arcgis-image.js b/examples/arcgis-image.js
index 00a7787ef6..4e1068f606 100644
--- a/examples/arcgis-image.js
+++ b/examples/arcgis-image.js
@@ -5,7 +5,7 @@ goog.require('ol.layer.Image');
 goog.require('ol.source.OSM');
 goog.require('ol.source.ImageArcGISRest');
 
-var url = 'http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/' +
+var url = 'https://sampleserver1.arcgisonline.com/ArcGIS/rest/services/' +
     'Specialty/ESRI_StateCityHighway_USA/MapServer';
 
 var layers = [
diff --git a/examples/arcgis-tiled.js b/examples/arcgis-tiled.js
index b04042baf9..568258f624 100644
--- a/examples/arcgis-tiled.js
+++ b/examples/arcgis-tiled.js
@@ -4,7 +4,7 @@ goog.require('ol.layer.Tile');
 goog.require('ol.source.OSM');
 goog.require('ol.source.TileArcGISRest');
 
-var url = 'http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/' +
+var url = 'https://sampleserver1.arcgisonline.com/ArcGIS/rest/services/' +
     'Specialty/ESRI_StateCityHighway_USA/MapServer';
 
 var layers = [
diff --git a/examples/vector-esri-edit.js b/examples/vector-esri-edit.js
index 055e1f9f85..5709688ab2 100644
--- a/examples/vector-esri-edit.js
+++ b/examples/vector-esri-edit.js
@@ -55,7 +55,7 @@ var vector = new ol.layer.Vector({
 
 var raster = new ol.layer.Tile({
   source: new ol.source.XYZ({
-    attributions: 'Tiles © <a href="http://services.arcgisonline.com/ArcGIS/' +
+    attributions: 'Tiles © <a href="https://services.arcgisonline.com/ArcGIS/' +
         'rest/services/World_Topo_Map/MapServer">ArcGIS</a>',
     url: 'https://server.arcgisonline.com/ArcGIS/rest/services/' +
         'World_Topo_Map/MapServer/tile/{z}/{y}/{x}'
diff --git a/examples/vector-esri.js b/examples/vector-esri.js
index deda97931b..110c740412 100644
--- a/examples/vector-esri.js
+++ b/examples/vector-esri.js
@@ -97,7 +97,7 @@ var vector = new ol.layer.Vector({
 
 var raster = new ol.layer.Tile({
   source: new ol.source.XYZ({
-    attributions: 'Tiles © <a href="http://services.arcgisonline.com/ArcGIS/' +
+    attributions: 'Tiles © <a href="https://services.arcgisonline.com/ArcGIS/' +
         'rest/services/World_Topo_Map/MapServer">ArcGIS</a>',
     url: 'https://server.arcgisonline.com/ArcGIS/rest/services/' +
         'World_Topo_Map/MapServer/tile/{z}/{y}/{x}'
diff --git a/examples/wmts.js b/examples/wmts.js
index 08f8921138..89aaba98b3 100644
--- a/examples/wmts.js
+++ b/examples/wmts.js
@@ -29,7 +29,7 @@ var map = new ol.Map({
     new ol.layer.Tile({
       opacity: 0.7,
       source: new ol.source.WMTS({
-        attributions: 'Tiles © <a href="http://services.arcgisonline.com/arcgis/rest/' +
+        attributions: 'Tiles © <a href="https://services.arcgisonline.com/arcgis/rest/' +
             'services/Demographics/USA_Population_Density/MapServer/">ArcGIS</a>',
         url: 'https://services.arcgisonline.com/arcgis/rest/' +
             'services/Demographics/USA_Population_Density/MapServer/WMTS/',
diff --git a/examples/xyz-esri-4326-512.js b/examples/xyz-esri-4326-512.js
index 15c8ab0056..7baa19090f 100644
--- a/examples/xyz-esri-4326-512.js
+++ b/examples/xyz-esri-4326-512.js
@@ -14,7 +14,7 @@ var projection = ol.proj.get('EPSG:4326');
 // The tile size supported by the ArcGIS tile service.
 var tileSize = 512;
 
-var urlTemplate = 'http://services.arcgisonline.com/arcgis/rest/services/' +
+var urlTemplate = 'https://services.arcgisonline.com/arcgis/rest/services/' +
     'ESRI_Imagery_World_2D/MapServer/tile/{z}/{y}/{x}';
 
 var map = new ol.Map({
diff --git a/examples/xyz-esri.js b/examples/xyz-esri.js
index 1320a3f445..8a3ed393c3 100644
--- a/examples/xyz-esri.js
+++ b/examples/xyz-esri.js
@@ -7,7 +7,7 @@ goog.require('ol.source.XYZ');
 
 
 var attribution = new ol.Attribution({
-  html: 'Tiles © <a href="http://services.arcgisonline.com/ArcGIS/' +
+  html: 'Tiles © <a href="https://services.arcgisonline.com/ArcGIS/' +
       'rest/services/World_Topo_Map/MapServer">ArcGIS</a>'
 });
 
diff --git a/test/spec/ol/format/wmts/arcgis.xml b/test/spec/ol/format/wmts/arcgis.xml
index d98f965335..070dd3bab7 100644
--- a/test/spec/ol/format/wmts/arcgis.xml
+++ b/test/spec/ol/format/wmts/arcgis.xml
@@ -16,7 +16,7 @@
             <ows:DCP>
                 <ows:HTTP>
                     <ows:Get
-                        xlink:href="http://services.arcgisonline.com/arcgis/rest/services/Demographics/USA_Population_Density/MapServer/WMTS/1.0.0/WMTSCapabilities.xml">
+                        xlink:href="https://services.arcgisonline.com/arcgis/rest/services/Demographics/USA_Population_Density/MapServer/WMTS/1.0.0/WMTSCapabilities.xml">
                         <ows:Constraint name="GetEncoding">
                             <ows:AllowedValues>
                                 <ows:Value>RESTful</ows:Value>
@@ -25,7 +25,7 @@
                     </ows:Get>
                     <!-- add KVP binding in 10.1 -->
                     <ows:Get
-                        xlink:href="http://services.arcgisonline.com/arcgis/rest/services/Demographics/USA_Population_Density/MapServer/WMTS?">
+                        xlink:href="https://services.arcgisonline.com/arcgis/rest/services/Demographics/USA_Population_Density/MapServer/WMTS?">
                         <ows:Constraint name="GetEncoding">
                             <ows:AllowedValues>
                                 <ows:Value>KVP</ows:Value>
@@ -39,7 +39,7 @@
             <ows:DCP>
                 <ows:HTTP>
                     <ows:Get
-                        xlink:href="http://services.arcgisonline.com/arcgis/rest/services/Demographics/USA_Population_Density/MapServer/WMTS/tile/1.0.0/">
+                        xlink:href="https://services.arcgisonline.com/arcgis/rest/services/Demographics/USA_Population_Density/MapServer/WMTS/tile/1.0.0/">
                         <ows:Constraint name="GetEncoding">
                             <ows:AllowedValues>
                                 <ows:Value>RESTful</ows:Value>
@@ -47,7 +47,7 @@
                         </ows:Constraint>
                     </ows:Get>
                     <ows:Get
-                        xlink:href="http://services.arcgisonline.com/arcgis/rest/services/Demographics/USA_Population_Density/MapServer/WMTS?">
+                        xlink:href="https://services.arcgisonline.com/arcgis/rest/services/Demographics/USA_Population_Density/MapServer/WMTS?">
                         <ows:Constraint name="GetEncoding">
                             <ows:AllowedValues>
                                 <ows:Value>KVP</ows:Value>
@@ -84,7 +84,7 @@
                 <TileMatrixSet>GoogleMapsCompatible</TileMatrixSet>
             </TileMatrixSetLink>
             <ResourceURL format="image/png" resourceType="tile"
-                template="http://services.arcgisonline.com/arcgis/rest/services/Demographics/USA_Population_Density/MapServer/WMTS/tile/1.0.0/Demographics_USA_Population_Density/{Style}/{TileMatrixSet}/{TileMatrix}/{TileRow}/{TileCol}.png"
+                template="https://services.arcgisonline.com/arcgis/rest/services/Demographics/USA_Population_Density/MapServer/WMTS/tile/1.0.0/Demographics_USA_Population_Density/{Style}/{TileMatrixSet}/{TileMatrix}/{TileRow}/{TileCol}.png"
             />
         </Layer>
         <!--TileMatrixSet-->
@@ -403,6 +403,6 @@
         </TileMatrixSet>
     </Contents>
     <ServiceMetadataURL
-        xlink:href="http://services.arcgisonline.com/arcgis/rest/services/Demographics/USA_Population_Density/MapServer/WMTS/1.0.0/WMTSCapabilities.xml"
+        xlink:href="https://services.arcgisonline.com/arcgis/rest/services/Demographics/USA_Population_Density/MapServer/WMTS/1.0.0/WMTSCapabilities.xml"
     />
 </Capabilities>
diff --git a/test/spec/ol/source/wmts.test.js b/test/spec/ol/source/wmts.test.js
index 471e673ab3..8102989336 100644
--- a/test/spec/ol/source/wmts.test.js
+++ b/test/spec/ol/source/wmts.test.js
@@ -176,7 +176,7 @@ describe('ol.source.WMTS', function() {
           expect(options.urls).to.be.an('array');
           expect(options.urls).to.have.length(1);
           expect(options.urls[0]).to.be.eql(
-             'http://services.arcgisonline.com/arcgis/rest/services/' +
+             'https://services.arcgisonline.com/arcgis/rest/services/' +
              'Demographics/USA_Population_Density/MapServer/WMTS?');
         });
 
@@ -191,7 +191,7 @@ describe('ol.source.WMTS', function() {
           expect(options.urls).to.be.an('array');
           expect(options.urls).to.have.length(1);
           expect(options.urls[0]).to.be.eql(
-             'http://services.arcgisonline.com/arcgis/rest/services/' +
+             'https://services.arcgisonline.com/arcgis/rest/services/' +
              'Demographics/USA_Population_Density/MapServer/WMTS/' +
              'tile/1.0.0/Demographics_USA_Population_Density/' +
              '{Style}/{TileMatrixSet}/{TileMatrix}/{TileRow}/{TileCol}.png');