aprendematematicaonline.org. 30	IN SOA john.ns.cloudflare.com. dns.cloudflare.com. (
				2339758183 ; serial
				10000      ; refresh (2 hours 46 minutes 40 seconds)
				2400       ; retry (40 minutes)
				604800     ; expire (1 week)
				1800       ; minimum (30 minutes)
				)

aprendematematicaonline.org. 30	IN A 38.163.239.239

Name servers:
aprendematematicaonline.org. 30	IN NS john.ns.cloudflare.com.
aprendematematicaonline.org. 30	IN NS princess.ns.cloudflare.com.