sykdm.cn.		30 IN SOA chase.ns.cloudflare.com. dns.cloudflare.com. (
				2389388450 ; serial
				10000      ; refresh (2 hours 46 minutes 40 seconds)
				2400       ; retry (40 minutes)
				604800     ; expire (1 week)
				1800       ; minimum (30 minutes)
				)

sykdm.cn.		30 IN A	104.21.33.85
sykdm.cn.		30 IN A	172.67.160.179
sykdm.cn.		30 IN AAAA 2606:4700:3035::6815:2155
sykdm.cn.		30 IN AAAA 2606:4700:3037::ac43:a0b3

Name servers:
sykdm.cn.		30 IN NS chase.ns.cloudflare.com.
sykdm.cn.		30 IN NS joyce.ns.cloudflare.com.