calculusproblems.org.	30 IN SOA ns-1600.awsdns-08.co.uk. awsdns-hostmaster.amazon.com. (
				1          ; serial
				7200       ; refresh (2 hours)
				900        ; retry (15 minutes)
				1209600    ; expire (2 weeks)
				86400      ; minimum (1 day)
				)

calculusproblems.org.	30 IN TXT "v=spf1 include:mail.emailyak.com ~all"

calculusproblems.org.	30 IN A	52.57.221.121
calculusproblems.org.	30 IN AAAA 2a05:d014:776:a63e:ceb:15ad:bbb7:6a9d

Name servers:
calculusproblems.org.	30 IN NS ns-1172.awsdns-18.org.
calculusproblems.org.	30 IN NS ns-1600.awsdns-08.co.uk.
calculusproblems.org.	30 IN NS ns-351.awsdns-43.com.
calculusproblems.org.	30 IN NS ns-964.awsdns-56.net.