diff --git a/api/apiHandler.go b/api/apiHandler.go
index 3237bde..1405076 100644
--- a/api/apiHandler.go
+++ b/api/apiHandler.go
@@ -97,6 +97,8 @@ func (a *APIHandler) getHandler(c *gin.Context) {
 		a.ApiService.GetTokens(c)
 	case "singbox-config":
 		a.ApiService.GetSingboxConfig(c)
+	case "checkOutbound":
+		a.ApiService.GetCheckOutbound(c)
 	default:
 		jsonMsg(c, "failed", common.NewError("unknown action: ", action))
 	}
diff --git a/api/apiService.go b/api/apiService.go
index 8e6317e..2f02793 100644
--- a/api/apiService.go
+++ b/api/apiService.go
@@ -396,3 +396,10 @@ func (a *ApiService) GetSingboxConfig(c *gin.Context) {
 	c.Header("Content-Disposition", "attachment; filename=config_"+time.Now().Format("20060102-150405")+".json")
 	c.Writer.Write(rawConfig)
 }
+
+func (a *ApiService) GetCheckOutbound(c *gin.Context) {
+	tag := c.Query("tag")
+	link := c.Query("link")
+	result := a.ConfigService.CheckOutbound(tag, link)
+	jsonObj(c, result, nil)
+}
diff --git a/api/apiV2Handler.go b/api/apiV2Handler.go
index 39cfd69..6eb08bf 100644
--- a/api/apiV2Handler.go
+++ b/api/apiV2Handler.go
@@ -86,6 +86,8 @@ func (a *APIv2Handler) getHandler(c *gin.Context) {
 		a.ApiService.GetKeypairs(c)
 	case "getdb":
 		a.ApiService.GetDb(c)
+	case "checkOutbound":
+		a.ApiService.GetCheckOutbound(c)
 	default:
 		jsonMsg(c, "failed", common.NewError("unknown action: ", action))
 	}
diff --git a/core/outbound_check.go b/core/outbound_check.go
new file mode 100644
index 0000000..a91b512
--- /dev/null
+++ b/core/outbound_check.go
@@ -0,0 +1,40 @@
+package core
+
+import (
+	"context"
+	"time"
+
+	urltest "github.com/sagernet/sing-box/common/urltest"
+)
+
+const checkTimeout = 15 * time.Second
+
+type CheckOutboundResult struct {
+	OK    bool
+	Delay uint16
+	Error string
+}
+
+func CheckOutbound(ctx context.Context, tag string, link string) (result CheckOutboundResult) {
+	if outbound_manager == nil {
+		result.Error = "core not running"
+		return result
+	}
+	ob, ok := outbound_manager.Outbound(tag)
+	if !ok {
+		result.Error = "outbound not found"
+		return result
+	}
+
+	ctx, cancel := context.WithTimeout(ctx, checkTimeout)
+	defer cancel()
+
+	delay, err := urltest.URLTest(ctx, link, ob)
+	if err != nil {
+		result.Error = err.Error()
+		return result
+	}
+	result.OK = true
+	result.Delay = delay
+	return result
+}
diff --git a/service/config.go b/service/config.go
index b8b3969..eb1f76b 100644
--- a/service/config.go
+++ b/service/config.go
@@ -123,6 +123,16 @@ func (s *ConfigService) StopCore() error {
 	return nil
 }
 
+func (s *ConfigService) CheckOutbound(tag string, link string) core.CheckOutboundResult {
+	if tag == "" {
+		return core.CheckOutboundResult{Error: "missing query parameter: tag"}
+	}
+	if corePtr == nil || !corePtr.IsRunning() {
+		return core.CheckOutboundResult{Error: "core not running"}
+	}
+	return core.CheckOutbound(corePtr.GetCtx(), tag, link)
+}
+
 func (s *ConfigService) Save(obj string, act string, data json.RawMessage, initUsers string, loginUser string, hostname string) ([]string, error) {
 	var err error
 	var objs []string = []string{obj}