apex.com	@	300	IN	SOA	ns3.serverfault.com. sysadmin.stackoverflow.com. 2020022300 3600 600 604800 1440
apex.com	@	172800	IN	NS	ns-1313.awsdns-36.org.
apex.com	@	172800	IN	NS	ns-736.awsdns-28.net.
apex.com	@	172800	IN	NS	ns-cloud-c1.googledomains.com.
apex.com	@	172800	IN	NS	ns-cloud-c2.googledomains.com.
apex.com	@	300	IN	CNAME	cnametest1.example.com.
www.apex.com	www	300	IN	CNAME	cnametest2.example.com.