diff --git a/tests/phpunit/tests/option/sanitize-option.php b/tests/phpunit/tests/option/sanitize-option.php
index 9c69c0e49a..4dd0942344 100644
--- a/tests/phpunit/tests/option/sanitize-option.php
+++ b/tests/phpunit/tests/option/sanitize-option.php
@@ -40,7 +40,7 @@ class Tests_Sanitize_Option extends WP_UnitTestCase {
 			array( 'siteurl', 'http://example.org', 'http://example.org' ),
 			array( 'siteurl', 'http://example.org/subdir', 'http://example.org/subdir' ),
 			array( 'siteurl', get_option( 'siteurl' ), '' ),
-			array( 'home', 'http://example.org', 'example.org' ),
+			array( 'home', 'http://example.org', 'http://example.org' ),
 			array( 'home', 'https://example.org', 'https://example.org' ),
 			array( 'home', 'http://localhost:8000', 'http://localhost:8000' ),
 			array( 'home', get_option( 'home' ), '' ),
diff --git a/tests/phpunit/tests/term/getEditTermLink.php b/tests/phpunit/tests/term/getEditTermLink.php
index efc6c0b863..610f24696e 100644
--- a/tests/phpunit/tests/term/getEditTermLink.php
+++ b/tests/phpunit/tests/term/getEditTermLink.php
@@ -17,7 +17,7 @@ class Tests_Term_GetEditTermLink extends WP_UnitTestCase {
 		) );
 
 		$actual = get_edit_term_link( $term1, 'wptests_tax' );
-		$expected = 'http://example.org/wp-admin/edit-tags.php?action=edit&taxonomy=wptests_tax&tag_ID=' . $term1 . '&post_type=post';
+		$expected = 'http://' . WP_TESTS_DOMAIN . '/wp-admin/edit-tags.php?action=edit&taxonomy=wptests_tax&tag_ID=' . $term1 . '&post_type=post';
 		$this->assertEquals( $expected, $actual );
 	}
 
diff --git a/tests/phpunit/tests/term/wpGenerateTagCloud.php b/tests/phpunit/tests/term/wpGenerateTagCloud.php
index 4a931ec4e2..aa8f957db3 100644
--- a/tests/phpunit/tests/term/wpGenerateTagCloud.php
+++ b/tests/phpunit/tests/term/wpGenerateTagCloud.php
@@ -93,7 +93,7 @@ class Tests_WP_Generate_Tag_Cloud extends WP_UnitTestCase {
 					'number' => 1,
 					'hide_empty' => false,
 				),
-				"<a href='http://example.org/?tag=term-1' class='tag-link-0' title='0 topics' style='font-size: 8pt;'>Term 1</a>",
+				"<a href='http://" . WP_TESTS_DOMAIN . "/?tag=term-1' class='tag-link-0' title='0 topics' style='font-size: 8pt;'>Term 1</a>",
 				array(
 					'hide_empty' => false,
 				),
@@ -107,7 +107,7 @@ class Tests_WP_Generate_Tag_Cloud extends WP_UnitTestCase {
 					'hide_empty' => false,
 				),
 				array(
-					"<a href='http://example.org/?tag=term-1' class='tag-link-0' title='0 topics' style='font-size: 8pt;'>Term 1</a>",
+					"<a href='http://" . WP_TESTS_DOMAIN . "/?tag=term-1' class='tag-link-0' title='0 topics' style='font-size: 8pt;'>Term 1</a>",
 				),
 				array(
 					'hide_empty' => false,
@@ -122,7 +122,7 @@ class Tests_WP_Generate_Tag_Cloud extends WP_UnitTestCase {
 					'number' => 1,
 					'hide_empty' => false,
 				),
-				"<ul class='wp-tag-cloud'>\n\t<li><a href='http://example.org/?tag=term-1' class='tag-link-0' title='0 topics' style='font-size: 8pt;'>Term 1</a></li>\n</ul>\n",
+				"<ul class='wp-tag-cloud'>\n\t<li><a href='http://" . WP_TESTS_DOMAIN . "/?tag=term-1' class='tag-link-0' title='0 topics' style='font-size: 8pt;'>Term 1</a></li>\n</ul>\n",
 				array(
 					'hide_empty' => false,
 					'format'     => 'list',
@@ -135,10 +135,10 @@ class Tests_WP_Generate_Tag_Cloud extends WP_UnitTestCase {
 					'number' => 4,
 					'hide_empty' => false,
 				),
-				"<a href='http://example.org/?tag=term-1' class='tag-link-0' title='0 topics' style='font-size: 8pt;'>Term 1</a>\n".
-				"<a href='http://example.org/?tag=term-2' class='tag-link-1' title='0 topics' style='font-size: 8pt;'>Term 2</a>\n".
-				"<a href='http://example.org/?tag=term-3' class='tag-link-2' title='0 topics' style='font-size: 8pt;'>Term 3</a>\n".
-				"<a href='http://example.org/?tag=term-4' class='tag-link-3' title='0 topics' style='font-size: 8pt;'>Term 4</a>",
+				"<a href='http://" . WP_TESTS_DOMAIN . "/?tag=term-1' class='tag-link-0' title='0 topics' style='font-size: 8pt;'>Term 1</a>\n".
+				"<a href='http://" . WP_TESTS_DOMAIN . "/?tag=term-2' class='tag-link-1' title='0 topics' style='font-size: 8pt;'>Term 2</a>\n".
+				"<a href='http://" . WP_TESTS_DOMAIN . "/?tag=term-3' class='tag-link-2' title='0 topics' style='font-size: 8pt;'>Term 3</a>\n".
+				"<a href='http://" . WP_TESTS_DOMAIN . "/?tag=term-4' class='tag-link-3' title='0 topics' style='font-size: 8pt;'>Term 4</a>",
 				array(
 					'hide_empty' => false,
 				),
@@ -151,10 +151,10 @@ class Tests_WP_Generate_Tag_Cloud extends WP_UnitTestCase {
 					'hide_empty' => false,
 				),
 				"<ul class='wp-tag-cloud'>\n\t<li>".
-				"<a href='http://example.org/?tag=term-1' class='tag-link-0' title='0 topics' style='font-size: 8pt;'>Term 1</a></li>\n\t<li>".
-				"<a href='http://example.org/?tag=term-2' class='tag-link-1' title='0 topics' style='font-size: 8pt;'>Term 2</a></li>\n\t<li>".
-				"<a href='http://example.org/?tag=term-3' class='tag-link-2' title='0 topics' style='font-size: 8pt;'>Term 3</a></li>\n\t<li>".
-				"<a href='http://example.org/?tag=term-4' class='tag-link-3' title='0 topics' style='font-size: 8pt;'>Term 4</a>".
+				"<a href='http://" . WP_TESTS_DOMAIN . "/?tag=term-1' class='tag-link-0' title='0 topics' style='font-size: 8pt;'>Term 1</a></li>\n\t<li>".
+				"<a href='http://" . WP_TESTS_DOMAIN . "/?tag=term-2' class='tag-link-1' title='0 topics' style='font-size: 8pt;'>Term 2</a></li>\n\t<li>".
+				"<a href='http://" . WP_TESTS_DOMAIN . "/?tag=term-3' class='tag-link-2' title='0 topics' style='font-size: 8pt;'>Term 3</a></li>\n\t<li>".
+				"<a href='http://" . WP_TESTS_DOMAIN . "/?tag=term-4' class='tag-link-3' title='0 topics' style='font-size: 8pt;'>Term 4</a>".
 				"</li>\n</ul>\n",
 				array(
 					'hide_empty' => false,