diff --git a/kernel/model/sync.go b/kernel/model/sync.go
index 78a41ce40..c394f7e13 100644
--- a/kernel/model/sync.go
+++ b/kernel/model/sync.go
@@ -139,7 +139,7 @@ func BootSyncData() {
 
 	if !isProviderOnline(false) {
 		BootSyncSucc = 1
-		util.PushErrMsg(Conf.Language(28), 7000)
+		util.PushErrMsg(Conf.Language(76), 7000)
 		return
 	}
 
diff --git a/kernel/util/net.go b/kernel/util/net.go
index 701380801..c22cbd82b 100644
--- a/kernel/util/net.go
+++ b/kernel/util/net.go
@@ -57,7 +57,19 @@ func isOnline(checkURL string, skipTlsVerify bool) (ret bool) {
 	}
 
 	for i := 0; i < 3; i++ {
-		_, err := c.R().Get(checkURL)
+		resp, err := c.R().Get(checkURL)
+		if resp.GetHeader("Location") != "" {
+			return true
+		}
+
+		switch err.(type) {
+		case *url.Error:
+			if err.(*url.Error).URL != checkURL {
+				// DNS 重定向
+				return true
+			}
+		}
+
 		ret = nil == err
 		if ret {
 			break