www.2684.cn. 30 IN CNAME overdue.aliyun.com. www.2684.cn. 30 IN CNAME overdue.aliyun.com. www.2684.cn. 30 IN CNAME overdue.aliyun.com. overdue.aliyun.com. 30 IN A 170.33.13.246 www.2684.cn. 30 IN CNAME overdue.aliyun.com.