详细英文注册信息如下：
Domain Name: cupin.cn ROID: 20240718s10001s59069423-cn Domain Status: ok Registrant: 周子琪 Registrant Contact Email: wuapp8168@gmail.com Sponsoring Registrar: 海南美洁达科技有限公司 Name Server: dm2.dns.com Name Server: dm1.dns.com Registration Time: 2024-07-18 04:14:22 Expiration Time: 2025-07-18 04:14:22 DNSSEC: unsigned