diff --git a/plugin/clouddns/README.md b/plugin/clouddns/README.md
index 506ecbabc..219d91335 100644
--- a/plugin/clouddns/README.md
+++ b/plugin/clouddns/README.md
@@ -20,6 +20,7 @@ the hosted zone.
 ~~~ txt
 clouddns [ZONE:PROJECT_ID:HOSTED_ZONE_NAME...] {
     credentials [FILENAME]
+    endpoint ENDPOINT
     fallthrough [ZONES...]
     refresh DURATION
 }
@@ -41,6 +42,10 @@ clouddns [ZONE:PROJECT_ID:HOSTED_ZONE_NAME...] {
     Google Cloud's [authentication method](https://cloud.google.com/docs/authentication) and
     [validating credential configurations from external sources](https://docs.cloud.google.com/docs/authentication/client-libraries#external-credentials) for more details.
 
+*   `endpoint` can be used to control the endpoint to use when querying Cloud DNS (optional).
+    **ENDPOINT** is the URL of the endpoint to use. If this is not provided the default Cloud DNS
+    endpoint is used. Useful for pointing at a local emulator or test environment.
+
 *   `fallthrough` If zone matches and no record can be generated, pass request to the next plugin.
     If **[ZONES...]** is omitted, then fallthrough happens for all zones for which the plugin is
     authoritative. If specific zones are listed (for example `in-addr.arpa` and `ip6.arpa`), then
@@ -90,3 +95,13 @@ example.org {
     }
 }
 ~~~
+
+Enable clouddns against a custom Cloud DNS endpoint:
+
+~~~ txt
+example.org {
+    clouddns example.org.:gcp-example-project:example-zone {
+        endpoint https://dns.googleapis.com
+    }
+}
+~~~
diff --git a/plugin/clouddns/setup.go b/plugin/clouddns/setup.go
index 9306134ac..632ad64fe 100644
--- a/plugin/clouddns/setup.go
+++ b/plugin/clouddns/setup.go
@@ -25,16 +25,10 @@ var log = clog.NewWithPlugin("clouddns")
 func init() { plugin.Register("clouddns", setup) }
 
 // exposed for testing
-var f = func(ctx context.Context, opt option.ClientOption) (gcpDNS, error) {
-	var err error
-	var client *gcp.Service
-	if opt != nil {
-		client, err = gcp.NewService(ctx, opt)
-	} else {
-		// if credentials file is not provided in the Corefile
-		// authenticate the client using env variables
-		client, err = gcp.NewService(ctx)
-	}
+var f = func(ctx context.Context, opts ...option.ClientOption) (gcpDNS, error) {
+	// if credentials file is not provided in the Corefile, authenticate the
+	// client using env variables; option.WithEndpoint, if any, still applies.
+	client, err := gcp.NewService(ctx, opts...)
 	return gcpClient{client}, err
 }
 
@@ -65,7 +59,7 @@ func setup(c *caddy.Controller) error {
 			keys[dnsName] = append(keys[dnsName], projectName+":"+hostedZone)
 		}
 
-		var opt option.ClientOption
+		var opts []option.ClientOption
 		refresh := time.Duration(1) * time.Minute // default update frequency to 1 minute
 		for c.NextBlock() {
 			switch c.Val() {
@@ -79,7 +73,12 @@ func setup(c *caddy.Controller) error {
 				if err != nil {
 					return plugin.Error("clouddns", c.Errf("invalid credentials file %q: %v", c.Val(), err))
 				}
-				opt = option.WithAuthCredentialsFile(credType, c.Val())
+				opts = append(opts, option.WithAuthCredentialsFile(credType, c.Val()))
+			case "endpoint":
+				if !c.NextArg() {
+					return plugin.Error("clouddns", c.ArgErr())
+				}
+				opts = append(opts, option.WithEndpoint(c.Val()))
 			case "fallthrough":
 				fall.SetZonesFromArgs(c.RemainingArgs())
 			case "refresh":
@@ -104,7 +103,7 @@ func setup(c *caddy.Controller) error {
 		}
 
 		ctx, cancel := context.WithCancel(context.Background())
-		client, err := f(ctx, opt)
+		client, err := f(ctx, opts...)
 		if err != nil {
 			cancel()
 			return err
diff --git a/plugin/clouddns/setup_test.go b/plugin/clouddns/setup_test.go
index 905347137..5a28520fb 100644
--- a/plugin/clouddns/setup_test.go
+++ b/plugin/clouddns/setup_test.go
@@ -13,7 +13,7 @@ import (
 )
 
 func TestSetupCloudDNS(t *testing.T) {
-	f = func(_ctx context.Context, _opt option.ClientOption) (gcpDNS, error) {
+	f = func(_ctx context.Context, _opts ...option.ClientOption) (gcpDNS, error) {
 		return fakeGCPClient{}, nil
 	}
 
@@ -73,6 +73,12 @@ func TestSetupCloudDNS(t *testing.T) {
 }`, true},
 		{`clouddns example.org.:example-project:zone-name {
     refresh -5m
+}`, true},
+		{`clouddns example.org.:example-project:zone-name {
+    endpoint https://dns.googleapis.com
+}`, false},
+		{`clouddns example.org.:example-project:zone-name {
+    endpoint
 }`, true},
 		{`clouddns example.org.:example-project:zone-name example.org.:example-project:zone-name {
 	}`, true},