mastercard.com zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (2607:3c00:6404:4::53)
mastercard.com/A: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2607:3c00:6404:4::53, UDP_-_NOEDNS_)
mastercard.com/NS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2607:3c00:6404:4::53, UDP_-_NOEDNS_)
Warnings (3)
com to mastercard.com: The following NS name(s) were found in the authoritative NS RRset, but not in the delegation NS RRset (i.e., in the com zone): dns1.mastercard.com, dns2.mastercard.com See RFC 1034, Sec. 4.2.2.
com/DS (alg 13, id 19718): The server appears to support DNS cookies but did not return a COOKIE option. See RFC 7873, Sec. 5.2.3. (2001:500:2f::f, UDP_-_EDNS0_4096_D_KN)
com/DS (alg 13, id 19718): The server appears to support DNS cookies but did not return a COOKIE option. See RFC 7873, Sec. 5.2.3. (2001:500:2f::f, UDP_-_EDNS0_4096_D_KN)