diff --git a/pkg/configuration/configuration.go b/pkg/configuration/configuration.go
index a914eef5..925fea81 100644
--- a/pkg/configuration/configuration.go
+++ b/pkg/configuration/configuration.go
@@ -136,7 +136,7 @@ func (r RegistrationServiceConfig) LogLevel() string {
 }
 
 func (r RegistrationServiceConfig) RegistrationServiceURL() string {
-	return commonconfig.GetString(r.cfg.Host.RegistrationService.RegistrationServiceURL, "https://registration.crt-placeholder.com")
+	return commonconfig.GetString(r.cfg.Host.RegistrationService.RegistrationServiceURL, "")
 }
 
 func (r RegistrationServiceConfig) Verification() VerificationConfig {
diff --git a/pkg/configuration/configuration_test.go b/pkg/configuration/configuration_test.go
index 409c21cf..294df8f1 100644
--- a/pkg/configuration/configuration_test.go
+++ b/pkg/configuration/configuration_test.go
@@ -43,7 +43,7 @@ func TestRegistrationService(t *testing.T) {
 		// then
 		assert.Equal(t, "prod", regServiceCfg.Environment())
 		assert.Equal(t, "info", regServiceCfg.LogLevel())
-		assert.Equal(t, "https://registration.crt-placeholder.com", regServiceCfg.RegistrationServiceURL())
+		assert.Equal(t, "", regServiceCfg.RegistrationServiceURL())
 		assert.Empty(t, regServiceCfg.Analytics().SegmentWriteKey())
 		assert.Empty(t, regServiceCfg.Analytics().DevSpacesSegmentWriteKey())
 		assert.Equal(t, "https://sso.devsandbox.dev/auth/js/keycloak.js", regServiceCfg.Auth().AuthClientLibraryURL())
diff --git a/pkg/controller/authconfig.go b/pkg/controller/authconfig.go
index f03ec4dd..49c8db57 100644
--- a/pkg/controller/authconfig.go
+++ b/pkg/controller/authconfig.go
@@ -12,6 +12,9 @@ type configResponse struct {
 	// this holds the raw config. Note: this is intentionally a string
 	// not json as this field may also hold non-json configs!
 	AuthClientConfigRaw string `json:"auth-client-config"`
+	// The signup page URL. After user logs into SSO but has not signed up yet then this URL can be used to redirect the user to
+	// sign up. If not set then the base URL of the registration service is supposed to be used by the clients.
+	SignupURL string `json:"signup-url"`
 }
 
 // AuthConfig implements the auth config endpoint, which is invoked to
@@ -30,6 +33,7 @@ func (ac *AuthConfig) GetHandler(ctx *gin.Context) {
 	configRespData := configResponse{
 		AuthClientLibraryURL: cfg.Auth().AuthClientLibraryURL(),
 		AuthClientConfigRaw:  cfg.Auth().AuthClientConfigRaw(),
+		SignupURL:            cfg.RegistrationServiceURL(),
 	}
 	ctx.JSON(http.StatusOK, configRespData)
 }
diff --git a/pkg/controller/authconfig_test.go b/pkg/controller/authconfig_test.go
index cab44ba9..39a49664 100644
--- a/pkg/controller/authconfig_test.go
+++ b/pkg/controller/authconfig_test.go
@@ -6,6 +6,8 @@ import (
 	"net/http/httptest"
 	"testing"
 
+	testconfig "github.com/codeready-toolchain/toolchain-common/pkg/test/config"
+
 	"github.com/codeready-toolchain/registration-service/pkg/configuration"
 	"github.com/codeready-toolchain/registration-service/test"
 
@@ -31,6 +33,9 @@ func (s *TestAuthConfigSuite) TestAuthClientConfigHandler() {
 
 	// Check if the config is set to testing mode, so the handler may use this.
 	assert.True(s.T(), configuration.IsTestingMode(), "testing mode not set correctly to true")
+	s.OverrideApplicationDefault(testconfig.RegistrationService().
+		RegistrationServiceURL("https://signup.domain.com"))
+	defer s.DefaultConfig()
 	cfg := configuration.GetRegistrationServiceConfig()
 
 	// Create handler instance.
@@ -115,5 +120,9 @@ func (s *TestAuthConfigSuite) TestAuthClientConfigHandler() {
 				assert.Equal(s.T(), config["public-client"], valBool, "wrong 'public-client' in authconfig response")
 			})
 		})
+
+		s.Run("envelope signup url", func() {
+			assert.Equal(s.T(), "https://signup.domain.com", dataEnvelope.SignupURL)
+		})
 	})
 }