详细英文注册信息如下：
Domain Name: d9a.cn ROID: 20210508s10001s35975011-cn Domain Status: clientDeleteProhibited Registrant: 张俊 Registrant Contact Email: suoduan@qq.com Sponsoring Registrar: 阿里云计算有限公司（万网） Name Server: dns7.hichina.com Name Server: dns8.hichina.com Registration Time: 2021-05-08 04:02:14 Expiration Time: 2025-05-08 04:02:14 DNSSEC: unsigned