bianlan.net.		30 IN SOA mussel.dnspod.net. freednsadmin.dnspod.com. (
				1611040277 ; serial
				3600       ; refresh (1 hour)
				180        ; retry (3 minutes)
				1209600    ; expire (2 weeks)
				180        ; minimum (3 minutes)
				)

Name servers:
bianlan.net.		30 IN NS mussel.dnspod.net.
bianlan.net.		30 IN NS crystal.dnspod.net.