详细英文注册信息如下：
Domain Name: rfsa.cn ROID: 20240911s10001s60398415-cn Domain Status: ok Registrant: 宋丹丹 Registrant Contact Email: mmccaa001@outlook.com Sponsoring Registrar: 广东互易网络知识产权有限公司 Name Server: dm2.dns.com Name Server: dm1.dns.com Registration Time: 2024-09-11 04:05:30 Expiration Time: 2025-09-11 04:05:30 DNSSEC: unsigned