www.tcpiputils.com. 30 IN A 104.21.31.131 www.tcpiputils.com. 30 IN A 172.67.176.138 www.tcpiputils.com. 30 IN AAAA 2606:4700:3033::ac43:b08a www.tcpiputils.com. 30 IN AAAA 2606:4700:3037::6815:1f83