详细英文注册信息如下：
Domain Name: rcac.cn ROID: 20240120s10001s55951477-cn Domain Status: clientTransferProhibited Registrant: 李慧晨 Registrant Contact Email: optical2123112@outlook.com Sponsoring Registrar: 北京新网数码信息技术有限公司 Name Server: now2.dns.com Name Server: now1.dns.com Registration Time: 2024-01-20 09:54:59 Expiration Time: 2025-01-20 09:54:59 DNSSEC: unsigned