--- a/protocol/group/urltest.go
+++ b/protocol/group/urltest.go
@@ -37,6 +37,7 @@
 	connection                   adapter.ConnectionManager
 	logger                       log.ContextLogger
 	tags                         []string
+	costs                        map[string]uint16 // OMV
 	link                         string
 	interval                     time.Duration
 	tolerance                    uint16
@@ -58,6 +59,7 @@
 		tolerance:                    options.Tolerance,
 		idleTimeout:                  time.Duration(options.IdleTimeout),
 		interruptExternalConnections: options.InterruptExistConnections,
+		costs:                        options.Costs, // OMV
 	}
 	if len(outbound.tags) == 0 {
 		return nil, E.New("missing tags")
@@ -74,7 +76,7 @@
 		}
 		outbounds = append(outbounds, detour)
 	}
-	group, err := NewURLTestGroup(s.ctx, s.outbound, s.logger, outbounds, s.link, s.interval, s.tolerance, s.idleTimeout, s.interruptExternalConnections)
+	group, err := NewURLTestGroup(s.ctx, s.outbound, s.logger, outbounds, s.costs, s.link, s.interval, s.tolerance, s.idleTimeout, s.interruptExternalConnections) // OMV
 	if err != nil {
 		return err
 	}
@@ -175,6 +177,7 @@
 	pauseCallback                *list.Element[pause.Callback]
 	logger                       log.Logger
 	outbounds                    []adapter.Outbound
+	costs                        map[string]uint16 // OMV
 	link                         string
 	interval                     time.Duration
 	tolerance                    uint16
@@ -192,7 +195,7 @@
 	lastActive                   common.TypedValue[time.Time]
 }
 
-func NewURLTestGroup(ctx context.Context, outboundManager adapter.OutboundManager, logger log.Logger, outbounds []adapter.Outbound, link string, interval time.Duration, tolerance uint16, idleTimeout time.Duration, interruptExternalConnections bool) (*URLTestGroup, error) {
+func NewURLTestGroup(ctx context.Context, outboundManager adapter.OutboundManager, logger log.Logger, outbounds []adapter.Outbound, costs map[string]uint16, link string, interval time.Duration, tolerance uint16, idleTimeout time.Duration, interruptExternalConnections bool) (*URLTestGroup, error) { // OMV
 	if interval == 0 {
 		interval = C.DefaultURLTestInterval
 	}
@@ -202,6 +205,11 @@
 	if idleTimeout == 0 {
 		idleTimeout = C.DefaultURLTestIdleTimeout
 	}
+	// OMV start: initialize costs map
+	if costs == nil {
+		costs = map[string]uint16{}
+	}
+	// OMV end
 	if interval > idleTimeout {
 		return nil, E.New("interval must be less or equal than idle_timeout")
 	}
@@ -214,6 +222,7 @@
 		outbound:                     outboundManager,
 		logger:                       logger,
 		outbounds:                    outbounds,
+		costs:                        costs, // OMV
 		link:                         link,
 		interval:                     interval,
 		tolerance:                    tolerance,
@@ -374,7 +383,14 @@
 				g.logger.Debug("outbound ", tag, " unavailable: ", err)
 				g.history.DeleteURLTestHistory(realTag)
 			} else {
-				g.logger.Debug("outbound ", tag, " available: ", t, "ms")
+				// OMV start: apply cost penalty to url test latency
+				add_latency, exist := g.costs[tag]
+				if !exist {
+					add_latency = 0
+				}
+				t = t + add_latency
+				g.logger.Debug("outbound ", tag, " available: ", t, "ms (add latency: ", add_latency, "ms)")
+				// OMV end
 				g.history.StoreURLTestHistory(realTag, &adapter.URLTestHistory{
 					Time:  time.Now(),
 					Delay: t,