diff --git a/test/internet/test-dns-cares-domains.js b/test/internet/test-dns-cares-domains.js
index 62c1847ea29adf..6609758a7daf17 100644
--- a/test/internet/test-dns-cares-domains.js
+++ b/test/internet/test-dns-cares-domains.js
@@ -1,5 +1,6 @@
 'use strict';
-require('../common');
+const common = require('../common');
+const { addresses } = require('../common/internet');
 const assert = require('assert');
 const dns = require('dns');
 const domain = require('domain');
@@ -20,8 +21,8 @@ const methods = [
 methods.forEach(function(method) {
   const d = domain.create();
   d.run(function() {
-    dns[method]('google.com', function() {
+    dns[method](addresses.INET_HOST, common.mustCall(() => {
       assert.strictEqual(process.domain, d, `${method} retains domain`);
-    });
+    }));
   });
 });
diff --git a/test/internet/test-dns-ipv4.js b/test/internet/test-dns-ipv4.js
index d3d5ba22009675..4c6e0ae6865e3f 100644
--- a/test/internet/test-dns-ipv4.js
+++ b/test/internet/test-dns-ipv4.js
@@ -1,5 +1,6 @@
 'use strict';
 const common = require('../common');
+const { addresses } = require('../common/internet');
 const assert = require('assert');
 const dns = require('dns');
 const net = require('net');
@@ -38,68 +39,72 @@ function checkWrap(req) {
 }
 
 TEST(function test_resolve4(done) {
-  const req = dns.resolve4('www.google.com',
-                           common.mustCall((err, ips) => {
-                             assert.ifError(err);
+  const req = dns.resolve4(
+    addresses.INET4_HOST,
+    common.mustCall((err, ips) => {
+      assert.ifError(err);
 
-                             assert.ok(ips.length > 0);
+      assert.ok(ips.length > 0);
 
-                             for (let i = 0; i < ips.length; i++) {
-                               assert.ok(isIPv4(ips[i]));
-                             }
+      for (let i = 0; i < ips.length; i++) {
+        assert.ok(isIPv4(ips[i]));
+      }
 
-                             done();
-                           }));
+      done();
+    }));
 
   checkWrap(req);
 });
 
 TEST(function test_reverse_ipv4(done) {
-  const req = dns.reverse('8.8.8.8',
-                          common.mustCall((err, domains) => {
-                            assert.ifError(err);
+  const req = dns.reverse(
+    addresses.INET4_IP,
+    common.mustCall((err, domains) => {
+      assert.ifError(err);
 
-                            assert.ok(domains.length > 0);
+      assert.ok(domains.length > 0);
 
-                            for (let i = 0; i < domains.length; i++) {
-                              assert.ok(domains[i]);
-                              assert.ok(typeof domains[i] === 'string');
-                            }
+      for (let i = 0; i < domains.length; i++) {
+        assert.ok(domains[i]);
+        assert.ok(typeof domains[i] === 'string');
+      }
 
-                            done();
-                          }));
+      done();
+    }));
 
   checkWrap(req);
 });
 
 TEST(function test_lookup_ipv4_explicit(done) {
-  const req = dns.lookup('www.google.com', 4,
-                         common.mustCall((err, ip, family) => {
-                           assert.ifError(err);
-                           assert.ok(net.isIPv4(ip));
-                           assert.strictEqual(family, 4);
+  const req = dns.lookup(
+    addresses.INET4_HOST, 4,
+    common.mustCall((err, ip, family) => {
+      assert.ifError(err);
+      assert.ok(net.isIPv4(ip));
+      assert.strictEqual(family, 4);
 
-                           done();
-                         }));
+      done();
+    }));
 
   checkWrap(req);
 });
 
 TEST(function test_lookup_ipv4_implicit(done) {
-  const req = dns.lookup('www.google.com',
-                         common.mustCall((err, ip, family) => {
-                           assert.ifError(err);
-                           assert.ok(net.isIPv4(ip));
-                           assert.strictEqual(family, 4);
+  const req = dns.lookup(
+    addresses.INET4_HOST,
+    common.mustCall((err, ip, family) => {
+      assert.ifError(err);
+      assert.ok(net.isIPv4(ip));
+      assert.strictEqual(family, 4);
 
-                           done();
-                         }));
+      done();
+    }));
 
   checkWrap(req);
 });
 
 TEST(function test_lookup_ipv4_explicit_object(done) {
-  const req = dns.lookup('www.google.com', {
+  const req = dns.lookup(addresses.INET4_HOST, {
     family: 4
   }, common.mustCall((err, ip, family) => {
     assert.ifError(err);
@@ -113,7 +118,7 @@ TEST(function test_lookup_ipv4_explicit_object(done) {
 });
 
 TEST(function test_lookup_ipv4_hint_addrconfig(done) {
-  const req = dns.lookup('www.google.com', {
+  const req = dns.lookup(addresses.INET4_HOST, {
     hints: dns.ADDRCONFIG
   }, common.mustCall((err, ip, family) => {
     assert.ifError(err);
@@ -154,7 +159,7 @@ TEST(function test_lookup_localhost_ipv4(done) {
 
 TEST(function test_lookup_all_ipv4(done) {
   const req = dns.lookup(
-    'www.google.com',
+    addresses.INET4_HOST,
     { all: true, family: 4 },
     common.mustCall((err, ips) => {
       assert.ifError(err);
diff --git a/test/internet/test-dns-ipv6.js b/test/internet/test-dns-ipv6.js
index a91b108456c027..8b1a8936802729 100644
--- a/test/internet/test-dns-ipv6.js
+++ b/test/internet/test-dns-ipv6.js
@@ -1,5 +1,6 @@
 'use strict';
 const common = require('../common');
+const { addresses } = require('../common/internet');
 if (!common.hasIPv6)
   common.skip('this test, no IPv6 support');
 
@@ -38,53 +39,57 @@ function checkWrap(req) {
 }
 
 TEST(function test_resolve6(done) {
-  const req = dns.resolve6('ipv6.google.com',
-                           common.mustCall((err, ips) => {
-                             assert.ifError(err);
+  const req = dns.resolve6(
+    addresses.INET6_HOST,
+    common.mustCall((err, ips) => {
+      assert.ifError(err);
 
-                             assert.ok(ips.length > 0);
+      assert.ok(ips.length > 0);
 
-                             for (let i = 0; i < ips.length; i++)
-                               assert.ok(isIPv6(ips[i]));
+      for (let i = 0; i < ips.length; i++)
+        assert.ok(isIPv6(ips[i]));
 
-                             done();
-                           }));
+      done();
+    }));
 
   checkWrap(req);
 });
 
 TEST(function test_reverse_ipv6(done) {
-  const req = dns.reverse('2001:4860:4860::8888',
-                          common.mustCall((err, domains) => {
-                            assert.ifError(err);
+  const req = dns.reverse(
+    addresses.INET6_IP,
+    common.mustCall((err, domains) => {
+      assert.ifError(err);
 
-                            assert.ok(domains.length > 0);
+      assert.ok(domains.length > 0);
 
-                            for (let i = 0; i < domains.length; i++)
-                              assert.ok(typeof domains[i] === 'string');
+      for (let i = 0; i < domains.length; i++)
+        assert.ok(typeof domains[i] === 'string');
 
-                            done();
-                          }));
+      done();
+    }));
 
   checkWrap(req);
 });
 
 TEST(function test_lookup_ipv6_explicit(done) {
-  const req = dns.lookup('ipv6.google.com', 6,
-                         common.mustCall((err, ip, family) => {
-                           assert.ifError(err);
-                           assert.ok(isIPv6(ip));
-                           assert.strictEqual(family, 6);
+  const req = dns.lookup(
+    addresses.INET6_HOST,
+    6,
+    common.mustCall((err, ip, family) => {
+      assert.ifError(err);
+      assert.ok(isIPv6(ip));
+      assert.strictEqual(family, 6);
 
-                           done();
-                         }));
+      done();
+    }));
 
   checkWrap(req);
 });
 
 /* This ends up just being too problematic to test
 TEST(function test_lookup_ipv6_implicit(done) {
-  var req = dns.lookup('ipv6.google.com', function(err, ip, family) {
+  var req = dns.lookup(addresses.INET6_HOST, function(err, ip, family) {
     assert.ifError(err);
     assert.ok(net.isIPv6(ip));
     assert.strictEqual(family, 6);
@@ -97,7 +102,7 @@ TEST(function test_lookup_ipv6_implicit(done) {
 */
 
 TEST(function test_lookup_ipv6_explicit_object(done) {
-  const req = dns.lookup('ipv6.google.com', {
+  const req = dns.lookup(addresses.INET6_HOST, {
     family: 6
   }, common.mustCall((err, ip, family) => {
     assert.ifError(err);
@@ -111,7 +116,7 @@ TEST(function test_lookup_ipv6_explicit_object(done) {
 });
 
 TEST(function test_lookup_ipv6_hint(done) {
-  const req = dns.lookup('www.google.com', {
+  const req = dns.lookup(addresses.INET6_HOST, {
     family: 6,
     hints: dns.V4MAPPED
   }, common.mustCall((err, ip, family) => {
@@ -120,7 +125,7 @@ TEST(function test_lookup_ipv6_hint(done) {
       if (common.isFreeBSD) {
         assert(err instanceof Error);
         assert.strictEqual(err.code, 'EAI_BADFLAGS');
-        assert.strictEqual(err.hostname, 'www.google.com');
+        assert.strictEqual(err.hostname, addresses.INET_HOST);
         assert.ok(/getaddrinfo EAI_BADFLAGS/.test(err.message));
         done();
         return;
@@ -139,21 +144,22 @@ TEST(function test_lookup_ipv6_hint(done) {
 });
 
 TEST(function test_lookup_ip_ipv6(done) {
-  const req = dns.lookup('::1',
-                         common.mustCall((err, ip, family) => {
-                           assert.ifError(err);
-                           assert.ok(isIPv6(ip));
-                           assert.strictEqual(family, 6);
+  const req = dns.lookup(
+    '::1',
+    common.mustCall((err, ip, family) => {
+      assert.ifError(err);
+      assert.ok(isIPv6(ip));
+      assert.strictEqual(family, 6);
 
-                           done();
-                         }));
+      done();
+    }));
 
   checkWrap(req);
 });
 
 TEST(function test_lookup_all_ipv6(done) {
   const req = dns.lookup(
-    'www.google.com',
+    addresses.INET6_HOST,
     { all: true, family: 6 },
     common.mustCall((err, ips) => {
       assert.ifError(err);
diff --git a/test/internet/test-dns-setserver-in-callback-of-resolve4.js b/test/internet/test-dns-setserver-in-callback-of-resolve4.js
index 222ac4dcc8ee31..58b3327efe9475 100644
--- a/test/internet/test-dns-setserver-in-callback-of-resolve4.js
+++ b/test/internet/test-dns-setserver-in-callback-of-resolve4.js
@@ -5,11 +5,14 @@
 // a crash or not. If it doesn't crash, the test succeeded.
 
 const common = require('../common');
+const { addresses } = require('../common/internet');
 const dns = require('dns');
 
-dns.resolve4('google.com', common.mustCall(function(/* err, nameServers */) {
-  dns.setServers([ '8.8.8.8' ]);
-}));
+dns.resolve4(
+  addresses.INET4_HOST,
+  common.mustCall(function(/* err, nameServers */) {
+    dns.setServers([ addresses.DNS4_SERVER ]);
+  }));
 
 // Test https://github.com/nodejs/node/issues/14734
-dns.resolve4('google.com', common.mustCall());
+dns.resolve4(addresses.INET4_HOST, common.mustCall());
diff --git a/test/internet/test-dns.js b/test/internet/test-dns.js
index e2214433c51436..054de88dd45f90 100644
--- a/test/internet/test-dns.js
+++ b/test/internet/test-dns.js
@@ -21,6 +21,7 @@
 
 'use strict';
 const common = require('../common');
+const { addresses } = require('../common/internet');
 const assert = require('assert');
 const dns = require('dns');
 const net = require('net');
@@ -74,7 +75,9 @@ TEST(function test_reverse_bogus(done) {
 });
 
 TEST(function test_resolve4_ttl(done) {
-  const req = dns.resolve4('google.com', { ttl: true }, function(err, result) {
+  const req = dns.resolve4(addresses.INET4_HOST, {
+    ttl: true
+  }, function(err, result) {
     assert.ifError(err);
     assert.ok(result.length > 0);
 
@@ -95,7 +98,9 @@ TEST(function test_resolve4_ttl(done) {
 });
 
 TEST(function test_resolve6_ttl(done) {
-  const req = dns.resolve6('google.com', { ttl: true }, function(err, result) {
+  const req = dns.resolve6(addresses.INET6_HOST, {
+    ttl: true
+  }, function(err, result) {
     assert.ifError(err);
     assert.ok(result.length > 0);
 
@@ -116,7 +121,7 @@ TEST(function test_resolve6_ttl(done) {
 });
 
 TEST(function test_resolveMx(done) {
-  const req = dns.resolveMx('gmail.com', function(err, result) {
+  const req = dns.resolveMx(addresses.MX_HOST, function(err, result) {
     assert.ifError(err);
     assert.ok(result.length > 0);
 
@@ -138,7 +143,7 @@ TEST(function test_resolveMx(done) {
 });
 
 TEST(function test_resolveMx_failure(done) {
-  const req = dns.resolveMx('something.invalid', function(err, result) {
+  const req = dns.resolveMx(addresses.INVALID_HOST, function(err, result) {
     assert.ok(err instanceof Error);
     assert.strictEqual(err.errno, 'ENOTFOUND');
 
@@ -151,7 +156,7 @@ TEST(function test_resolveMx_failure(done) {
 });
 
 TEST(function test_resolveNs(done) {
-  const req = dns.resolveNs('rackspace.com', function(err, names) {
+  const req = dns.resolveNs(addresses.NS_HOST, function(err, names) {
     assert.ifError(err);
     assert.ok(names.length > 0);
 
@@ -168,7 +173,7 @@ TEST(function test_resolveNs(done) {
 });
 
 TEST(function test_resolveNs_failure(done) {
-  const req = dns.resolveNs('something.invalid', function(err, result) {
+  const req = dns.resolveNs(addresses.INVALID_HOST, function(err, result) {
     assert.ok(err instanceof Error);
     assert.strictEqual(err.errno, 'ENOTFOUND');
 
@@ -181,7 +186,7 @@ TEST(function test_resolveNs_failure(done) {
 });
 
 TEST(function test_resolveSrv(done) {
-  const req = dns.resolveSrv('_jabber._tcp.google.com', function(err, result) {
+  const req = dns.resolveSrv(addresses.SRV_HOST, function(err, result) {
     assert.ifError(err);
     assert.ok(result.length > 0);
 
@@ -205,7 +210,7 @@ TEST(function test_resolveSrv(done) {
 });
 
 TEST(function test_resolveSrv_failure(done) {
-  const req = dns.resolveSrv('something.invalid', function(err, result) {
+  const req = dns.resolveSrv(addresses.INVALID_HOST, function(err, result) {
     assert.ok(err instanceof Error);
     assert.strictEqual(err.errno, 'ENOTFOUND');
 
@@ -218,7 +223,7 @@ TEST(function test_resolveSrv_failure(done) {
 });
 
 TEST(function test_resolvePtr(done) {
-  const req = dns.resolvePtr('8.8.8.8.in-addr.arpa', function(err, result) {
+  const req = dns.resolvePtr(addresses.PTR_HOST, function(err, result) {
     assert.ifError(err);
     assert.ok(result.length > 0);
 
@@ -235,7 +240,7 @@ TEST(function test_resolvePtr(done) {
 });
 
 TEST(function test_resolvePtr_failure(done) {
-  const req = dns.resolvePtr('something.invalid', function(err, result) {
+  const req = dns.resolvePtr(addresses.INVALID_HOST, function(err, result) {
     assert.ok(err instanceof Error);
     assert.strictEqual(err.errno, 'ENOTFOUND');
 
@@ -248,7 +253,7 @@ TEST(function test_resolvePtr_failure(done) {
 });
 
 TEST(function test_resolveNaptr(done) {
-  const req = dns.resolveNaptr('sip2sip.info', function(err, result) {
+  const req = dns.resolveNaptr(addresses.NAPTR_HOST, function(err, result) {
     assert.ifError(err);
     assert.ok(result.length > 0);
 
@@ -272,7 +277,7 @@ TEST(function test_resolveNaptr(done) {
 });
 
 TEST(function test_resolveNaptr_failure(done) {
-  const req = dns.resolveNaptr('something.invalid', function(err, result) {
+  const req = dns.resolveNaptr(addresses.INVALID_HOST, function(err, result) {
     assert.ok(err instanceof Error);
     assert.strictEqual(err.errno, 'ENOTFOUND');
 
@@ -285,7 +290,7 @@ TEST(function test_resolveNaptr_failure(done) {
 });
 
 TEST(function test_resolveSoa(done) {
-  const req = dns.resolveSoa('nodejs.org', function(err, result) {
+  const req = dns.resolveSoa(addresses.SOA_HOST, function(err, result) {
     assert.ifError(err);
     assert.ok(result);
     assert.strictEqual(typeof result, 'object');
@@ -318,7 +323,7 @@ TEST(function test_resolveSoa(done) {
 });
 
 TEST(function test_resolveSoa_failure(done) {
-  const req = dns.resolveSoa('something.invalid', function(err, result) {
+  const req = dns.resolveSoa(addresses.INVALID_HOST, function(err, result) {
     assert.ok(err instanceof Error);
     assert.strictEqual(err.errno, 'ENOTFOUND');
 
@@ -331,7 +336,7 @@ TEST(function test_resolveSoa_failure(done) {
 });
 
 TEST(function test_resolveCname(done) {
-  const req = dns.resolveCname('www.microsoft.com', function(err, names) {
+  const req = dns.resolveCname(addresses.CNAME_HOST, function(err, names) {
     assert.ifError(err);
     assert.ok(names.length > 0);
 
@@ -348,7 +353,7 @@ TEST(function test_resolveCname(done) {
 });
 
 TEST(function test_resolveCname_failure(done) {
-  const req = dns.resolveCname('something.invalid', function(err, result) {
+  const req = dns.resolveCname(addresses.INVALID_HOST, function(err, result) {
     assert.ok(err instanceof Error);
     assert.strictEqual(err.errno, 'ENOTFOUND');
 
@@ -362,7 +367,7 @@ TEST(function test_resolveCname_failure(done) {
 
 
 TEST(function test_resolveTxt(done) {
-  const req = dns.resolveTxt('google.com', function(err, records) {
+  const req = dns.resolveTxt(addresses.TXT_HOST, function(err, records) {
     assert.ifError(err);
     assert.strictEqual(records.length, 1);
     assert.ok(util.isArray(records[0]));
@@ -374,7 +379,7 @@ TEST(function test_resolveTxt(done) {
 });
 
 TEST(function test_resolveTxt_failure(done) {
-  const req = dns.resolveTxt('something.invalid', function(err, result) {
+  const req = dns.resolveTxt(addresses.INVALID_HOST, function(err, result) {
     assert.ok(err instanceof Error);
     assert.strictEqual(err.errno, 'ENOTFOUND');
 
@@ -388,12 +393,12 @@ TEST(function test_resolveTxt_failure(done) {
 
 
 TEST(function test_lookup_failure(done) {
-  const req = dns.lookup('does.not.exist', 4, function(err, ip, family) {
+  const req = dns.lookup(addresses.INVALID_HOST, 4, (err, ip, family) => {
     assert.ok(err instanceof Error);
     assert.strictEqual(err.errno, dns.NOTFOUND);
     assert.strictEqual(err.errno, 'ENOTFOUND');
     assert.ok(!/ENOENT/.test(err.message));
-    assert.ok(/does\.not\.exist/.test(err.message));
+    assert.ok(err.message.includes(addresses.INVALID_HOST));
 
     done();
   });
@@ -458,7 +463,9 @@ TEST(function test_lookup_null_all(done) {
 
 
 TEST(function test_lookup_all_mixed(done) {
-  const req = dns.lookup('www.google.com', { all: true }, function(err, ips) {
+  const req = dns.lookup(addresses.INET_HOST, {
+    all: true
+  }, function(err, ips) {
     assert.ifError(err);
     assert.ok(Array.isArray(ips));
     assert.ok(ips.length > 0);
@@ -508,11 +515,11 @@ TEST(function test_reverse_failure(done) {
 
 
 TEST(function test_lookup_failure(done) {
-  const req = dns.lookup('nosuchhostimsure', function(err) {
+  const req = dns.lookup(addresses.INVALID_HOST, (err) => {
     assert(err instanceof Error);
     assert.strictEqual(err.code, 'ENOTFOUND');  // Silly error code...
-    assert.strictEqual(err.hostname, 'nosuchhostimsure');
-    assert.ok(/nosuchhostimsure/.test(err.message));
+    assert.strictEqual(err.hostname, addresses.INVALID_HOST);
+    assert.ok(err.message.includes(addresses.INVALID_HOST));
 
     done();
   });
@@ -522,7 +529,7 @@ TEST(function test_lookup_failure(done) {
 
 
 TEST(function test_resolve_failure(done) {
-  const req = dns.resolve4('nosuchhostimsure', function(err) {
+  const req = dns.resolve4(addresses.INVALID_HOST, (err) => {
     assert(err instanceof Error);
 
     switch (err.code) {
@@ -534,8 +541,8 @@ TEST(function test_resolve_failure(done) {
         break;
     }
 
-    assert.strictEqual(err.hostname, 'nosuchhostimsure');
-    assert.ok(/nosuchhostimsure/.test(err.message));
+    assert.strictEqual(err.hostname, addresses.INVALID_HOST);
+    assert.ok(err.message.includes(addresses.INVALID_HOST));
 
     done();
   });
@@ -546,15 +553,16 @@ TEST(function test_resolve_failure(done) {
 
 let getaddrinfoCallbackCalled = false;
 
-console.log('looking up nodejs.org...');
+console.log(`looking up ${addresses.INET4_HOST}..`);
 
 const cares = process.binding('cares_wrap');
 const req = new cares.GetAddrInfoReqWrap();
-cares.getaddrinfo(req, 'nodejs.org', 4, /* hints */ 0, /* verbatim */ true);
+cares.getaddrinfo(req, addresses.INET4_HOST, 4,
+  /* hints */ 0, /* verbatim */ true);
 
 req.oncomplete = function(err, domains) {
   assert.strictEqual(err, 0);
-  console.log('nodejs.org = ', domains);
+  console.log(`${addresses.INET4_HOST} = ${domains}`);
   assert.ok(Array.isArray(domains));
   assert.ok(domains.length >= 1);
   assert.strictEqual(typeof domains[0], 'string');
@@ -569,10 +577,14 @@ process.on('exit', function() {
 });
 
 
-assert.doesNotThrow(() => dns.lookup('nodejs.org', 6, common.mustCall()));
+assert.doesNotThrow(() =>
+  dns.lookup(addresses.INET6_HOST, 6, common.mustCall()));
 
-assert.doesNotThrow(() => dns.lookup('nodejs.org', {}, common.mustCall()));
+assert.doesNotThrow(() =>
+  dns.lookup(addresses.INET_HOST, {}, common.mustCall()));
 
-assert.doesNotThrow(() => dns.lookupService('0.0.0.0', '0', common.mustCall()));
+assert.doesNotThrow(() =>
+  dns.lookupService('0.0.0.0', '0', common.mustCall()));
 
-assert.doesNotThrow(() => dns.lookupService('0.0.0.0', 0, common.mustCall()));
+assert.doesNotThrow(() =>
+  dns.lookupService('0.0.0.0', 0, common.mustCall()));
diff --git a/test/internet/test-http-https-default-ports.js b/test/internet/test-http-https-default-ports.js
index 567b045dc6eacf..5f1b9eddb4f416 100644
--- a/test/internet/test-http-https-default-ports.js
+++ b/test/internet/test-http-https-default-ports.js
@@ -21,6 +21,7 @@
 
 'use strict';
 const common = require('../common');
+const { addresses } = require('../common/internet');
 
 if (!common.hasCrypto)
   common.skip('missing crypto');
@@ -29,10 +30,10 @@ const https = require('https');
 
 const http = require('http');
 
-https.get('https://www.google.com/', common.mustCall(function(res) {
+https.get(`https://${addresses.INET_HOST}/`, common.mustCall(function(res) {
   res.resume();
 }));
 
-http.get('http://www.google.com/', common.mustCall(function(res) {
+http.get(`http://${addresses.INET_HOST}/`, common.mustCall(function(res) {
   res.resume();
 }));