详细英文注册信息如下：
Domain Name: a4s.cn ROID: 20240902s10001s60076294-cn Domain Status: ok Registrant: 唐开芬 Registrant Contact Email: 841392219@qq.com Sponsoring Registrar: 阿里云计算有限公司（万网） Name Server: dns17.hichina.com Name Server: dns18.hichina.com Registration Time: 2024-09-02 04:11:58 Expiration Time: 2026-09-02 04:11:58 DNSSEC: unsigned