diff --git a/adapter/adapter.go b/adapter/adapter.go
index d1f37863c6..cd1b73733f 100644
--- a/adapter/adapter.go
+++ b/adapter/adapter.go
@@ -185,33 +185,22 @@ func (p *Proxy) URLTest(ctx context.Context, url string, expectedStatus utils.In
 		if alive {
 			record.Delay = t
 		}
-
-		p.alive.Store(alive)
-		p.history.Put(record)
-		if p.history.Len() > defaultHistoriesNum {
-			p.history.Pop()
+		if !satisfied {
+			alive = false
 		}
-
 		state, ok := p.extra.Load(url)
 		if !ok {
 			state = &internalProxyState{
 				history: queue.New[C.DelayHistory](defaultHistoriesNum),
-				alive:   atomic.NewBool(true),
+				alive:   atomic.NewBool(alive),
 			}
 			p.extra.Store(url, state)
 		}
-
-		if !satisfied {
-			record.Delay = 0
-			alive = false
-		}
-
 		state.alive.Store(alive)
 		state.history.Put(record)
 		if state.history.Len() > defaultHistoriesNum {
 			state.history.Pop()
 		}
-
 	}()
 
 	unifiedDelay := UnifiedDelay.Load()
@@ -285,6 +274,9 @@ func (p *Proxy) URLTest(ctx context.Context, url string, expectedStatus utils.In
 
 	satisfied = resp != nil && (expectedStatus == nil || expectedStatus.Check(uint16(resp.StatusCode)))
 	t = uint16(time.Since(start) / time.Millisecond)
+	if !satisfied {
+		err = fmt.Errorf("failed by unsatisfied!status:%d", resp.StatusCode)
+	}
 	return
 }
 
diff --git a/hub/route/proxies.go b/hub/route/proxies.go
index ba4e03f902..8597f5e33f 100644
--- a/hub/route/proxies.go
+++ b/hub/route/proxies.go
@@ -135,7 +135,10 @@ func getProxyDelay(w http.ResponseWriter, r *http.Request) {
 	if err != nil || delay == 0 {
 		render.Status(r, http.StatusServiceUnavailable)
 		if err != nil && delay != 0 {
-			render.JSON(w, r, err)
+			render.JSON(w, r, render.M{
+				"delay": delay,
+				"error": err.Error(),
+			})
 		} else {
 			render.JSON(w, r, newError("An error occurred in the delay test"))
 		}