diff --git a/internal/experiment/torsf/torsf.go b/internal/experiment/torsf/torsf.go
index f61d6b9781..c209dbc8b5 100644
--- a/internal/experiment/torsf/torsf.go
+++ b/internal/experiment/torsf/torsf.go
@@ -25,7 +25,7 @@ import (
 // We may want to have a single implementation for both nettests in the future.
 
 // testVersion is the experiment version.
-const testVersion = "0.5.0"
+const testVersion = "0.5.1"
 
 // Config contains the experiment config.
 type Config struct {
@@ -37,6 +37,9 @@ type Config struct {
 
 	// RendezvousMethod allows to choose the method with which to rendezvous.
 	RendezvousMethod string `ooni:"Choose the method with which to rendezvous. Must be one of amp and domain_fronting. Leaving this field empty means we should use the default."`
+
+	BrokerURL   string `ooni:"TODO"`
+	FrontDomain string `ooni:"TODO"`
 }
 
 // TestKeys contains the experiment's result.
@@ -176,6 +179,11 @@ func (m *Measurer) setup(ctx context.Context,
 		// cannot run the experiment with unknown rendezvous method
 		return nil, nil, err
 	}
+	if rm.Name() == "domain_fronting" {
+		t1 := rm.(*ptx.SnowflakeRendezvousMethodDomainFronting)
+		t1.URL = m.config.BrokerURL
+		t1.Front = m.config.FrontDomain
+	}
 	sfdialer := ptx.NewSnowflakeDialerWithRendezvousMethod(rm)
 	ptl := &ptx.Listener{
 		ExperimentByteCounter: bytecounter.ContextExperimentByteCounter(ctx),
diff --git a/internal/experiment/torsf/torsf_test.go b/internal/experiment/torsf/torsf_test.go
index f7c2301810..5ecc94e41e 100644
--- a/internal/experiment/torsf/torsf_test.go
+++ b/internal/experiment/torsf/torsf_test.go
@@ -25,7 +25,7 @@ func TestExperimentNameAndVersion(t *testing.T) {
 	if m.ExperimentName() != "torsf" {
 		t.Fatal("invalid experiment name")
 	}
-	if m.ExperimentVersion() != "0.5.0" {
+	if m.ExperimentVersion() != "0.5.1" {
 		t.Fatal("invalid experiment version")
 	}
 }
diff --git a/internal/ptx/snowflake.go b/internal/ptx/snowflake.go
index cf6cd0c352..766acd848a 100644
--- a/internal/ptx/snowflake.go
+++ b/internal/ptx/snowflake.go
@@ -27,25 +27,36 @@ type SnowflakeRendezvousMethod interface {
 // NewSnowflakeRendezvousMethodDomainFronting is a rendezvous method
 // that uses domain fronting to perform the rendezvous.
 func NewSnowflakeRendezvousMethodDomainFronting() SnowflakeRendezvousMethod {
-	return &snowflakeRendezvousMethodDomainFronting{}
+	return &SnowflakeRendezvousMethodDomainFronting{}
 }
 
-type snowflakeRendezvousMethodDomainFronting struct{}
+type SnowflakeRendezvousMethodDomainFronting struct {
+	URL   string
+	Front string
+}
 
-func (d *snowflakeRendezvousMethodDomainFronting) Name() string {
+func (d *SnowflakeRendezvousMethodDomainFronting) Name() string {
 	return "domain_fronting"
 }
 
-func (d *snowflakeRendezvousMethodDomainFronting) AMPCacheURL() string {
+func (d *SnowflakeRendezvousMethodDomainFronting) AMPCacheURL() string {
 	return ""
 }
 
-func (d *snowflakeRendezvousMethodDomainFronting) BrokerURL() string {
-	return "https://snowflake-broker.torproject.net.global.prod.fastly.net/"
+func (d *SnowflakeRendezvousMethodDomainFronting) BrokerURL() string {
+	if d.URL != "" {
+		return d.URL
+	} else {
+		return "https://1098762253.rsc.cdn77.org/"
+	}
 }
 
-func (d *snowflakeRendezvousMethodDomainFronting) FrontDomain() string {
-	return "foursquare.com"
+func (d *SnowflakeRendezvousMethodDomainFronting) FrontDomain() string {
+	if d.Front != "" {
+		return d.Front
+	} else {
+		return "www.phpmyadmin.net"
+	}
 }
 
 // NewSnowflakeRendezvousMethodAMP is a rendezvous method that