trekker.cn.		30 IN SOA ns19.xincache.com. enterprise1dnsadmin.dnspod.com. (
				1588057825 ; serial
				3600       ; refresh (1 hour)
				180        ; retry (3 minutes)
				1209600    ; expire (2 weeks)
				180        ; minimum (3 minutes)
				)

trekker.cn.		30 IN A	47.57.126.114

Name servers:
trekker.cn.		30 IN NS ns19.xincache.com.
trekker.cn.		30 IN NS ns20.xincache.com.