rubinsystems.com.	30 IN SOA carioca.ns.cloudflare.com. dns.cloudflare.com. (
				2355638684 ; serial
				10000      ; refresh (2 hours 46 minutes 40 seconds)
				2400       ; retry (40 minutes)
				604800     ; expire (1 week)
				1800       ; minimum (30 minutes)
				)

rubinsystems.com.	30 IN A	138.68.102.213
rubinsystems.com.	30 IN AAAA 2a03:b0c0:3:d0::1745:a001

Name servers:
rubinsystems.com.	30 IN NS carioca.ns.cloudflare.com.
rubinsystems.com.	30 IN NS nick.ns.cloudflare.com.