diff --git a/kernel/util/net.go b/kernel/util/net.go
index f681ffd3cc9..d1dbc80d518 100644
--- a/kernel/util/net.go
+++ b/kernel/util/net.go
@@ -100,11 +100,11 @@ func isOnline(checkURL string, skipTlsVerify bool) (ret bool) {
 
 	for i := 0; i < 3; i++ {
 		resp, err := c.R().Get(checkURL)
-
-		if resp.StatusCode == 401 {
+		if 401 == resp.StatusCode {
+			// Improve data sync cloud storage availability check logic https://github.com/siyuan-note/siyuan/pull/10206
 			return true
 		}
-		
+
 		if resp.GetHeader("Location") != "" {
 			return true
 		}