diff --git a/app/router/config.go b/app/router/config.go
index cc8032856..c1ac97452 100644
--- a/app/router/config.go
+++ b/app/router/config.go
@@ -164,10 +164,22 @@ func (br *BalancingRule) Build(ohm outbound.Manager, dispatcher routing.Dispatch
 	case "random":
 		fallthrough
 	case "":
+		var randomStrategy *RandomStrategy
+		if br.StrategySettings != nil {
+			i, err := serial.GetInstanceOf(br.StrategySettings)
+			if err != nil {
+				return nil, err
+			}
+			s, ok := i.(*StrategyRandomConfig)
+			if !ok {
+				return nil, newError("not a StrategyRandomConfig").AtError()
+			}
+			randomStrategy = NewRandomStrategy(s)
+		}
 		return &Balancer{
 			selectors: br.OutboundSelector,
 			ohm:       ohm, fallbackTag: br.FallbackTag,
-			strategy: &RandomStrategy{},
+			strategy: randomStrategy,
 		}, nil
 	default:
 		return nil, newError("unrecognized balancer type")
diff --git a/app/router/config.pb.go b/app/router/config.pb.go
index 7d077d468..e0ea6758c 100644
--- a/app/router/config.pb.go
+++ b/app/router/config.pb.go
@@ -1,12 +1,18 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.27.1
+// 	protoc        v3.12.4
+// source: app/router/config.proto
+
 package router
 
 import (
+	any "github.com/golang/protobuf/ptypes/any"
 	routercommon "github.com/v2fly/v2ray-core/v5/app/router/routercommon"
 	net "github.com/v2fly/v2ray-core/v5/common/net"
 	_ "github.com/v2fly/v2ray-core/v5/common/protoext"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
-	anypb "google.golang.org/protobuf/types/known/anypb"
 	reflect "reflect"
 	sync "sync"
 )
@@ -80,7 +86,6 @@ type RoutingRule struct {
 	unknownFields protoimpl.UnknownFields
 
 	// Types that are assignable to TargetTag:
-	//
 	//	*RoutingRule_Tag
 	//	*RoutingRule_BalancingTag
 	TargetTag isRoutingRule_TargetTag `protobuf_oneof:"target_tag"`
@@ -89,7 +94,7 @@ type RoutingRule struct {
 	// List of CIDRs for target IP address matching.
 	// Deprecated. Use geoip below.
 	//
-	// Deprecated: Marked as deprecated in app/router/config.proto.
+	// Deprecated: Do not use.
 	Cidr []*routercommon.CIDR `protobuf:"bytes,3,rep,name=cidr,proto3" json:"cidr,omitempty"`
 	// List of GeoIPs for target IP address matching. If this entry exists, the
 	// cidr above will have no effect. GeoIP fields with the same country code are
@@ -99,19 +104,19 @@ type RoutingRule struct {
 	// A range of port [from, to]. If the destination port is in this range, this
 	// rule takes effect. Deprecated. Use port_list.
 	//
-	// Deprecated: Marked as deprecated in app/router/config.proto.
+	// Deprecated: Do not use.
 	PortRange *net.PortRange `protobuf:"bytes,4,opt,name=port_range,json=portRange,proto3" json:"port_range,omitempty"`
 	// List of ports.
 	PortList *net.PortList `protobuf:"bytes,14,opt,name=port_list,json=portList,proto3" json:"port_list,omitempty"`
 	// List of networks. Deprecated. Use networks.
 	//
-	// Deprecated: Marked as deprecated in app/router/config.proto.
+	// Deprecated: Do not use.
 	NetworkList *net.NetworkList `protobuf:"bytes,5,opt,name=network_list,json=networkList,proto3" json:"network_list,omitempty"`
 	// List of networks for matching.
 	Networks []net.Network `protobuf:"varint,13,rep,packed,name=networks,proto3,enum=v2ray.core.common.net.Network" json:"networks,omitempty"`
 	// List of CIDRs for source IP address matching.
 	//
-	// Deprecated: Marked as deprecated in app/router/config.proto.
+	// Deprecated: Do not use.
 	SourceCidr []*routercommon.CIDR `protobuf:"bytes,6,rep,name=source_cidr,json=sourceCidr,proto3" json:"source_cidr,omitempty"`
 	// List of GeoIPs for source IP address matching. If this entry exists, the
 	// source_cidr above will have no effect.
@@ -187,7 +192,7 @@ func (x *RoutingRule) GetDomain() []*routercommon.Domain {
 	return nil
 }
 
-// Deprecated: Marked as deprecated in app/router/config.proto.
+// Deprecated: Do not use.
 func (x *RoutingRule) GetCidr() []*routercommon.CIDR {
 	if x != nil {
 		return x.Cidr
@@ -202,7 +207,7 @@ func (x *RoutingRule) GetGeoip() []*routercommon.GeoIP {
 	return nil
 }
 
-// Deprecated: Marked as deprecated in app/router/config.proto.
+// Deprecated: Do not use.
 func (x *RoutingRule) GetPortRange() *net.PortRange {
 	if x != nil {
 		return x.PortRange
@@ -217,7 +222,7 @@ func (x *RoutingRule) GetPortList() *net.PortList {
 	return nil
 }
 
-// Deprecated: Marked as deprecated in app/router/config.proto.
+// Deprecated: Do not use.
 func (x *RoutingRule) GetNetworkList() *net.NetworkList {
 	if x != nil {
 		return x.NetworkList
@@ -232,7 +237,7 @@ func (x *RoutingRule) GetNetworks() []net.Network {
 	return nil
 }
 
-// Deprecated: Marked as deprecated in app/router/config.proto.
+// Deprecated: Do not use.
 func (x *RoutingRule) GetSourceCidr() []*routercommon.CIDR {
 	if x != nil {
 		return x.SourceCidr
@@ -319,11 +324,11 @@ type BalancingRule struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Tag              string     `protobuf:"bytes,1,opt,name=tag,proto3" json:"tag,omitempty"`
-	OutboundSelector []string   `protobuf:"bytes,2,rep,name=outbound_selector,json=outboundSelector,proto3" json:"outbound_selector,omitempty"`
-	Strategy         string     `protobuf:"bytes,3,opt,name=strategy,proto3" json:"strategy,omitempty"`
-	StrategySettings *anypb.Any `protobuf:"bytes,4,opt,name=strategy_settings,json=strategySettings,proto3" json:"strategy_settings,omitempty"`
-	FallbackTag      string     `protobuf:"bytes,5,opt,name=fallback_tag,json=fallbackTag,proto3" json:"fallback_tag,omitempty"`
+	Tag              string   `protobuf:"bytes,1,opt,name=tag,proto3" json:"tag,omitempty"`
+	OutboundSelector []string `protobuf:"bytes,2,rep,name=outbound_selector,json=outboundSelector,proto3" json:"outbound_selector,omitempty"`
+	Strategy         string   `protobuf:"bytes,3,opt,name=strategy,proto3" json:"strategy,omitempty"`
+	StrategySettings *any.Any `protobuf:"bytes,4,opt,name=strategy_settings,json=strategySettings,proto3" json:"strategy_settings,omitempty"`
+	FallbackTag      string   `protobuf:"bytes,5,opt,name=fallback_tag,json=fallbackTag,proto3" json:"fallback_tag,omitempty"`
 }
 
 func (x *BalancingRule) Reset() {
@@ -379,7 +384,7 @@ func (x *BalancingRule) GetStrategy() string {
 	return ""
 }
 
-func (x *BalancingRule) GetStrategySettings() *anypb.Any {
+func (x *BalancingRule) GetStrategySettings() *any.Any {
 	if x != nil {
 		return x.StrategySettings
 	}
@@ -460,6 +465,9 @@ type StrategyRandomConfig struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
+
+	ObserverTag string `protobuf:"bytes,7,opt,name=observer_tag,json=observerTag,proto3" json:"observer_tag,omitempty"`
+	AliveOnly   bool   `protobuf:"varint,8,opt,name=alive_only,json=aliveOnly,proto3" json:"alive_only,omitempty"`
 }
 
 func (x *StrategyRandomConfig) Reset() {
@@ -494,6 +502,20 @@ func (*StrategyRandomConfig) Descriptor() ([]byte, []int) {
 	return file_app_router_config_proto_rawDescGZIP(), []int{3}
 }
 
+func (x *StrategyRandomConfig) GetObserverTag() string {
+	if x != nil {
+		return x.ObserverTag
+	}
+	return ""
+}
+
+func (x *StrategyRandomConfig) GetAliveOnly() bool {
+	if x != nil {
+		return x.AliveOnly
+	}
+	return false
+}
+
 type StrategyLeastPingConfig struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -702,7 +724,6 @@ type SimplifiedRoutingRule struct {
 	unknownFields protoimpl.UnknownFields
 
 	// Types that are assignable to TargetTag:
-	//
 	//	*SimplifiedRoutingRule_Tag
 	//	*SimplifiedRoutingRule_BalancingTag
 	TargetTag isSimplifiedRoutingRule_TargetTag `protobuf_oneof:"target_tag"`
@@ -1047,116 +1068,121 @@ var file_app_router_config_proto_rawDesc = []byte{
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+	0x52, 0x6f, 0x75, 0x74, 0x65, 0x72, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -1192,7 +1218,7 @@ var file_app_router_config_proto_goTypes = []interface{}{
 	(*net.NetworkList)(nil),         // 15: v2ray.core.common.net.NetworkList
 	(net.Network)(0),                // 16: v2ray.core.common.net.Network
 	(*routercommon.GeoSite)(nil),    // 17: v2ray.core.app.router.routercommon.GeoSite
-	(*anypb.Any)(nil),               // 18: google.protobuf.Any
+	(*any.Any)(nil),                 // 18: google.protobuf.Any
 }
 var file_app_router_config_proto_depIdxs = []int32{
 	10, // 0: v2ray.core.app.router.RoutingRule.domain:type_name -> v2ray.core.app.router.routercommon.Domain
diff --git a/app/router/config.proto b/app/router/config.proto
index 319751163..1ca01ed02 100644
--- a/app/router/config.proto
+++ b/app/router/config.proto
@@ -87,6 +87,9 @@ message StrategyWeight {
 message StrategyRandomConfig {
   option (v2ray.core.common.protoext.message_opt).type = "balancer";
   option (v2ray.core.common.protoext.message_opt).short_name = "random";
+
+  string observer_tag = 7;
+  bool alive_only = 8;
 }
 
 message StrategyLeastPingConfig {
diff --git a/app/router/strategy_random.go b/app/router/strategy_random.go
index 78a5a2b7d..4e2138fad 100644
--- a/app/router/strategy_random.go
+++ b/app/router/strategy_random.go
@@ -1,18 +1,83 @@
 package router
 
 import (
+	"context"
+
+	core "github.com/v2fly/v2ray-core/v5"
+	"github.com/v2fly/v2ray-core/v5/app/observatory"
 	"github.com/v2fly/v2ray-core/v5/common"
 	"github.com/v2fly/v2ray-core/v5/common/dice"
+	"github.com/v2fly/v2ray-core/v5/features"
+	"github.com/v2fly/v2ray-core/v5/features/extension"
+	"google.golang.org/protobuf/runtime/protoiface"
 )
 
 // RandomStrategy represents a random balancing strategy
-type RandomStrategy struct{}
+type RandomStrategy struct {
+	ctx         context.Context
+	settings    *StrategyRandomConfig
+	observatory extension.Observatory
+}
 
 func (s *RandomStrategy) GetPrincipleTarget(strings []string) []string {
 	return strings
 }
 
+// NewRandomStrategy creates a new RandomStrategy with settings
+func NewRandomStrategy(settings *StrategyRandomConfig) *RandomStrategy {
+	return &RandomStrategy{
+		settings: settings,
+	}
+}
+
+func (s *RandomStrategy) InjectContext(ctx context.Context) {
+	if s != nil {
+		s.ctx = ctx
+	}
+}
+
 func (s *RandomStrategy) PickOutbound(candidates []string) string {
+	if s != nil && s.settings.AliveOnly {
+		// candidates are considered alive unless observed otherwise
+		if s.observatory == nil {
+			core.RequireFeatures(s.ctx, func(observatory extension.Observatory) error {
+				s.observatory = observatory
+				return nil
+			})
+		}
+		if s.observatory != nil {
+			var observeReport protoiface.MessageV1
+			var err error
+			if s.settings.ObserverTag == "" {
+				observeReport, err = s.observatory.GetObservation(s.ctx)
+			} else {
+				observeReport, err = common.Must2(s.observatory.(features.TaggedFeatures).GetFeaturesByTag(s.settings.ObserverTag)).(extension.Observatory).GetObservation(s.ctx)
+			}
+			if err == nil {
+				aliveTags := make([]string, 0)
+				if result, ok := observeReport.(*observatory.ObservationResult); ok {
+					status := result.Status
+					statusMap := make(map[string]*observatory.OutboundStatus)
+					for _, outboundStatus := range status {
+						statusMap[outboundStatus.OutboundTag] = outboundStatus
+					}
+					for _, candidate := range candidates {
+						if outboundStatus, found := statusMap[candidate]; found {
+							if outboundStatus.Alive {
+								aliveTags = append(aliveTags, candidate)
+							}
+						} else {
+							// unfound candidate is considered alive
+							aliveTags = append(aliveTags, candidate)
+						}
+					}
+
+					candidates = aliveTags
+				}
+			}
+		}
+	}
+
 	count := len(candidates)
 	if count == 0 {
 		// goes to fallbackTag
diff --git a/infra/conf/synthetic/router/router_strategy.go b/infra/conf/synthetic/router/router_strategy.go
index 4cb463004..c958974f0 100644
--- a/infra/conf/synthetic/router/router_strategy.go
+++ b/infra/conf/synthetic/router/router_strategy.go
@@ -16,7 +16,7 @@ const (
 )
 
 var strategyConfigLoader = loader.NewJSONConfigLoader(loader.ConfigCreatorCache{
-	strategyRandom:    func() interface{} { return new(strategyEmptyConfig) },
+	strategyRandom:    func() interface{} { return new(strategyRandomConfig) },
 	strategyLeastLoad: func() interface{} { return new(strategyLeastLoadConfig) },
 	strategyLeastPing: func() interface{} { return new(strategyLeastPingConfig) },
 }, "type", "settings")
@@ -98,3 +98,12 @@ type strategyLeastPingConfig struct {
 func (s strategyLeastPingConfig) Build() (proto.Message, error) {
 	return &router.StrategyLeastPingConfig{ObserverTag: s.ObserverTag}, nil
 }
+
+type strategyRandomConfig struct {
+	AliveOnly   bool   `json:"aliveOnly,omitempty"`
+	ObserverTag string `json:"observerTag,omitempty"`
+}
+
+func (s strategyRandomConfig) Build() (proto.Message, error) {
+	return &router.StrategyRandomConfig{ObserverTag: s.ObserverTag, AliveOnly: s.AliveOnly}, nil
+}
diff --git a/infra/conf/synthetic/router/router_test.go b/infra/conf/synthetic/router/router_test.go
index 31ea8142e..61c6f33ec 100644
--- a/infra/conf/synthetic/router/router_test.go
+++ b/infra/conf/synthetic/router/router_test.go
@@ -113,6 +113,7 @@ func TestRouterConfig(t *testing.T) {
 						Tag:              "b1",
 						OutboundSelector: []string{"test"},
 						Strategy:         "random",
+						StrategySettings: serial.ToTypedMessage(&router.StrategyRandomConfig{}),
 					},
 					{
 						Tag:              "b2",