diff --git a/lns.go b/lns.go
index 49b77ec..56178f3 100644
--- a/lns.go
+++ b/lns.go
@@ -352,6 +352,106 @@ func (s *Service) GetCreate(name, nextDomain string, typeBitmap []byte) NSECReco
 	return s.Create(name, nextDomain, typeBitmap)
 }
 
+// DefaultTTL returns the reference DNS TTL used for synthesized records.
+func (s *Service) DefaultTTL() int {
+	return DEFAULT_TTL
+}
+
+// GetDefaultTTL is an alias for DefaultTTL.
+func (s *Service) GetDefaultTTL() int {
+	return s.DefaultTTL()
+}
+
+// Dummy returns the zero-length DNS reference buffer.
+func (s *Service) Dummy() []byte {
+	return DUMMY
+}
+
+// GetDummy is an alias for Dummy.
+func (s *Service) GetDummy() []byte {
+	return s.Dummy()
+}
+
+// TypeMapRoot returns the reference type bitmap for the root zone.
+func (s *Service) TypeMapRoot() []byte {
+	return TYPE_MAP_ROOT
+}
+
+// GetTypeMapRoot is an alias for TypeMapRoot.
+func (s *Service) GetTypeMapRoot() []byte {
+	return s.TypeMapRoot()
+}
+
+// TypeMapEmpty returns the reference type bitmap for an empty response.
+func (s *Service) TypeMapEmpty() []byte {
+	return TYPE_MAP_EMPTY
+}
+
+// GetTypeMapEmpty is an alias for TypeMapEmpty.
+func (s *Service) GetTypeMapEmpty() []byte {
+	return s.TypeMapEmpty()
+}
+
+// TypeMapNS returns the reference type bitmap for NS responses.
+func (s *Service) TypeMapNS() []byte {
+	return TYPE_MAP_NS
+}
+
+// GetTypeMapNS is an alias for TypeMapNS.
+func (s *Service) GetTypeMapNS() []byte {
+	return s.TypeMapNS()
+}
+
+// TypeMapTXT returns the reference type bitmap for TXT responses.
+func (s *Service) TypeMapTXT() []byte {
+	return TYPE_MAP_TXT
+}
+
+// GetTypeMapTXT is an alias for TypeMapTXT.
+func (s *Service) GetTypeMapTXT() []byte {
+	return s.TypeMapTXT()
+}
+
+// TypeMapA returns the reference type bitmap for A responses.
+func (s *Service) TypeMapA() []byte {
+	return TYPE_MAP_A
+}
+
+// GetTypeMapA is an alias for TypeMapA.
+func (s *Service) GetTypeMapA() []byte {
+	return s.TypeMapA()
+}
+
+// TypeMapAAAA returns the reference type bitmap for AAAA responses.
+func (s *Service) TypeMapAAAA() []byte {
+	return TYPE_MAP_AAAA
+}
+
+// GetTypeMapAAAA is an alias for TypeMapAAAA.
+func (s *Service) GetTypeMapAAAA() []byte {
+	return s.TypeMapAAAA()
+}
+
+// HSTypes returns the DNS record-type lookup table.
+func (s *Service) HSTypes() map[string]dnspkg.HSType {
+	return HSTypes
+}
+
+// GetHSTypes is an alias for HSTypes.
+func (s *Service) GetHSTypes() map[string]dnspkg.HSType {
+	return s.HSTypes()
+}
+
+// HSTypesByVal returns the reverse DNS record-type lookup table.
+func (s *Service) HSTypesByVal() map[dnspkg.HSType]string {
+	return HSTypesByVal
+}
+
+// GetHSTypesByVal is an alias for HSTypesByVal.
+func (s *Service) GetHSTypesByVal() map[dnspkg.HSType]string {
+	return s.HSTypesByVal()
+}
+
 // NextName returns the canonical successor for a top-level domain name.
 func (s *Service) NextName(tld string) string {
 	return dnspkg.NextName(tld)
diff --git a/lns_test.go b/lns_test.go
index 0efdb97..1a146e1 100644
--- a/lns_test.go
+++ b/lns_test.go
@@ -891,6 +891,46 @@ func TestServiceUtilityAliases(t *testing.T) {
 		t.Fatalf("GetPrevName returned %q", got)
 	}
 
+	if svc.DefaultTTL() != DEFAULT_TTL || svc.GetDefaultTTL() != DEFAULT_TTL {
+		t.Fatalf("DefaultTTL getters = %d/%d, want %d", svc.DefaultTTL(), svc.GetDefaultTTL(), DEFAULT_TTL)
+	}
+
+	if len(svc.Dummy()) != 0 || len(svc.GetDummy()) != 0 {
+		t.Fatal("Dummy getters should return the zero-length DNS reference buffer")
+	}
+
+	if !bytes.Equal(svc.TypeMapRoot(), TYPE_MAP_ROOT) || !bytes.Equal(svc.GetTypeMapRoot(), TYPE_MAP_ROOT) {
+		t.Fatal("TypeMapRoot getters should alias the reference bitmap")
+	}
+
+	if !bytes.Equal(svc.TypeMapEmpty(), TYPE_MAP_EMPTY) || !bytes.Equal(svc.GetTypeMapEmpty(), TYPE_MAP_EMPTY) {
+		t.Fatal("TypeMapEmpty getters should alias the reference bitmap")
+	}
+
+	if !bytes.Equal(svc.TypeMapNS(), TYPE_MAP_NS) || !bytes.Equal(svc.GetTypeMapNS(), TYPE_MAP_NS) {
+		t.Fatal("TypeMapNS getters should alias the reference bitmap")
+	}
+
+	if !bytes.Equal(svc.TypeMapTXT(), TYPE_MAP_TXT) || !bytes.Equal(svc.GetTypeMapTXT(), TYPE_MAP_TXT) {
+		t.Fatal("TypeMapTXT getters should alias the reference bitmap")
+	}
+
+	if !bytes.Equal(svc.TypeMapA(), TYPE_MAP_A) || !bytes.Equal(svc.GetTypeMapA(), TYPE_MAP_A) {
+		t.Fatal("TypeMapA getters should alias the reference bitmap")
+	}
+
+	if !bytes.Equal(svc.TypeMapAAAA(), TYPE_MAP_AAAA) || !bytes.Equal(svc.GetTypeMapAAAA(), TYPE_MAP_AAAA) {
+		t.Fatal("TypeMapAAAA getters should alias the reference bitmap")
+	}
+
+	if len(svc.HSTypes()) != len(HSTypes) || len(svc.GetHSTypes()) != len(HSTypes) {
+		t.Fatal("HSTypes getters should alias the reference table")
+	}
+
+	if len(svc.HSTypesByVal()) != len(HSTypesByVal) || len(svc.GetHSTypesByVal()) != len(HSTypesByVal) {
+		t.Fatal("HSTypesByVal getters should alias the reference table")
+	}
+
 	record := svc.Create(".", svc.NextName("."), TYPE_MAP_ROOT)
 	if record.Name != "." {
 		t.Fatalf("Create Name = %q, want %q", record.Name, ".")