Whois server: whois.cnnic.net.cn Domain Name: polkadot.cn ROID: 20220113s10001s46277658-cn Domain Status: ok Registrant: 黄韶怀 Registrant Contact Email: [email protected] Sponsoring Registrar: 阿里云计算有限公司（万网） Name Server: ns1.sudos.co Name Server: ns2.sudos.co Registration Time: 2022-01-13 04:02:33 Expiration Time: 2026-01-13 04:02:33 DNSSEC: unsigned