Domain Name: knownsec.cn ROID: 20190201s10001s09780700-cn Domain Status: ok Registrant: 北京知道创宇信息技术股份有限公司 Registrant Contact Email: dns@knownsec.com Sponsoring Registrar: 阿里云计算有限公司（万网） Name Server: ns1.jiasule.net Name Server: ns2.jiasule.net Registration Time: 2019-02-01 04:38:30 Expiration Time: 2030-02-01 04:38:30 DNSSEC: unsigned