diff --git a/main.go b/main.go
index 5f94ce1..9748879 100644
--- a/main.go
+++ b/main.go
@@ -56,6 +56,10 @@ func main() {
 	os.MkdirAll(downloadDir, 0755)
 	log.Printf("Auth enabled: %v, Port: %s, Keep versions: %d", authEnabled, port, keepVersions)
 
+	// 启动时立即检查一次
+	log.Println("Performing initial check...")
+	checkAndDownload()
+
 	go monitor()
 
 	http.HandleFunc("/", authMiddleware(serveIndex))
@@ -115,7 +119,7 @@ func checkAndDownload() {
 		return
 	}
 
-	log.Printf("Downloaded: %s", filename)
+	log.Printf("Downloaded: %s (%.2f MB)", filename, float64(len(data))/1024/1024)
 	cleanupOldVersions()
 }
 
@@ -143,6 +147,7 @@ func cleanupOldVersions() {
 
 	for i := keepVersions; i < len(versions); i++ {
 		os.Remove(filepath.Join(downloadDir, versions[i].Filename))
+		log.Printf("Removed old version: %s", versions[i].Filename)
 	}
 }