pr-seo.cn.		30 IN SOA jm1.alidns.com. hostmaster.hichina.com. (
				2021111211 ; serial
				3600       ; refresh (1 hour)
				1200       ; retry (20 minutes)
				86400      ; expire (1 day)
				30         ; minimum (30 seconds)
				)

pr-seo.cn.		30 IN A	106.52.90.33

Name servers:
pr-seo.cn.		30 IN NS jm2.alidns.com.
pr-seo.cn.		30 IN NS jm1.alidns.com.