iP or domain name lookup

[Querying whois.cnnic.cn]

[whois.cnnic.cn]

Domain Name: letusign.cn

ROID: 20151202s10001s79602302-cn

Domain Status: ok

Registrant: 上海市数字证书认证中心有限公司

Registrant Contact Email: domain_admin@sheca.com

Sponsoring Registrar: 阿里云计算有限公司（万网）

Name Server: vip3.alidns.com

Name Server: vip4.alidns.com

Registration Time: 2015-12-02 10:01:40

Expiration Time: 2029-12-02 10:01:40

DNSSEC: unsigned