详细英文注册信息如下：
Domain Name: sjka.cn ROID: 20191227s10001s21435888-cn Domain Status: ok Registrant: 刘卓 Registrant Contact Email: wanggeorge475@gmail.com Sponsoring Registrar: 厦门纳网科技股份有限公司 Name Server: jm1.dns.com Name Server: jm2.dns.com Registration Time: 2019-12-27 05:10:00 Expiration Time: 2024-12-27 05:10:00 DNSSEC: unsigned