cnopt.net.		599 IN SOA ens11.bigwww.com. hostmaster.hichina.com. (
				2020051311 ; serial
				3600       ; refresh (1 hour)
				1200       ; retry (20 minutes)
				86400      ; expire (1 day)
				360        ; minimum (6 minutes)
				)

cnopt.net.		599 IN A 103.15.106.120

Name servers:
cnopt.net.		21599 IN NS ens12.bigwww.com.
cnopt.net.		21599 IN NS ens11.bigwww.com.