calificamos.com.	30 IN SOA dns1.registrar-servers.com. hostmaster.registrar-servers.com. (
				1713557004 ; serial
				43200      ; refresh (12 hours)
				3600       ; retry (1 hour)
				604800     ; expire (1 week)
				3601       ; minimum (1 hour 1 second)
				)

Name servers:
calificamos.com.	30 IN NS dns2.registrar-servers.com.
calificamos.com.	30 IN NS dns1.registrar-servers.com.