web321.cn.		30 IN SOA carrera.ns.cloudflare.com. dns.cloudflare.com. (
				2386540493 ; serial
				10000      ; refresh (2 hours 46 minutes 40 seconds)
				2400       ; retry (40 minutes)
				604800     ; expire (1 week)
				1800       ; minimum (30 minutes)
				)

web321.cn.		30 IN A	104.21.51.157
web321.cn.		30 IN A	172.67.182.127
web321.cn.		30 IN AAAA 2606:4700:3036::ac43:b67f
web321.cn.		30 IN AAAA 2606:4700:3030::6815:339d

Name servers:
web321.cn.		30 IN NS carrera.ns.cloudflare.com.
web321.cn.		30 IN NS jim.ns.cloudflare.com.