diff --git a/internal/nodes/http_writer.go b/internal/nodes/http_writer.go
index fd32d7d..fb40120 100644
--- a/internal/nodes/http_writer.go
+++ b/internal/nodes/http_writer.go
@@ -552,11 +552,6 @@ func (this *HTTPWriter) prepareCache(size int64) {
 		return
 	}
 
-	// 不支持Range
-	if len(this.Header().Get("Content-Range")) > 0 {
-		return
-	}
-
 	cachePolicy := this.req.Server.HTTPCachePolicy
 	if cachePolicy == nil || !cachePolicy.IsOn {
 		return
@@ -567,17 +562,36 @@ func (this *HTTPWriter) prepareCache(size int64) {
 		return
 	}
 
+	var addStatusHeader = this.req.web != nil && this.req.web.Cache != nil && this.req.web.Cache.AddStatusHeader
+
+	// 不支持Range
+	if len(this.Header().Get("Content-Range")) > 0 {
+		if addStatusHeader {
+			this.Header().Set("X-Cache", "BYPASS, not supported Content-Range")
+		}
+		return
+	}
+
 	// 如果允许 ChunkedEncoding，就无需尺寸的判断，因为此时的 size 为 -1
 	if !cacheRef.AllowChunkedEncoding && size < 0 {
+		if addStatusHeader {
+			this.Header().Set("X-Cache", "BYPASS, ChunkedEncoding")
+		}
 		return
 	}
 	if size >= 0 && ((cacheRef.MaxSizeBytes() > 0 && size > cacheRef.MaxSizeBytes()) ||
 		(cachePolicy.MaxSizeBytes() > 0 && size > cachePolicy.MaxSizeBytes()) || (cacheRef.MinSizeBytes() > size)) {
+		if addStatusHeader {
+			this.Header().Set("X-Cache", "BYPASS, Content-Length")
+		}
 		return
 	}
 
 	// 检查状态
 	if len(cacheRef.Status) > 0 && !lists.ContainsInt(cacheRef.Status, this.StatusCode()) {
+		if addStatusHeader {
+			this.Header().Set("X-Cache", "BYPASS, Status: "+types.String(this.StatusCode()))
+		}
 		return
 	}
 
@@ -588,6 +602,9 @@ func (this *HTTPWriter) prepareCache(size int64) {
 			values := strings.Split(cacheControl, ",")
 			for _, value := range values {
 				if cacheRef.ContainsCacheControl(strings.TrimSpace(value)) {
+					if addStatusHeader {
+						this.Header().Set("X-Cache", "BYPASS, Cache-Control: "+cacheControl)
+					}
 					return
 				}
 			}
@@ -596,19 +613,29 @@ func (this *HTTPWriter) prepareCache(size int64) {
 
 	// Set-Cookie
 	if cacheRef.SkipResponseSetCookie && len(this.writer.Header().Get("Set-Cookie")) > 0 {
+		if addStatusHeader {
+			this.Header().Set("X-Cache", "BYPASS, Set-Cookie")
+		}
 		return
 	}
 
 	// 校验其他条件
 	if cacheRef.Conds != nil && cacheRef.Conds.HasResponseConds() && !cacheRef.Conds.MatchResponse(this.req.Format) {
+		if addStatusHeader {
+			this.Header().Set("X-Cache", "BYPASS, ResponseConds")
+		}
 		return
 	}
 
 	// 打开缓存写入
 	storage := caches.SharedManager.FindStorageWithPolicy(cachePolicy.Id)
 	if storage == nil {
+		if addStatusHeader {
+			this.Header().Set("X-Cache", "BYPASS, Storage")
+		}
 		return
 	}
+
 	this.cacheStorage = storage
 	life := cacheRef.LifeSeconds()
 	if life <= 60 { // 最小不能少于1分钟