com to xerox.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): betelgeuse.xerox.com, curly.xerox.com, shemp.xerox.com, athena.xerox.com See RFC 1034, Sec. 4.2.2.
xerox.com/DNSKEY (alg 8, id 36420): No response was received until the UDP payload size was decreased, indicating that the server might be attempting to send a payload that exceeds the path maximum transmission unit (PMTU) size. See RFC 6891, Sec. 6.2.6. (13.13.138.12, UDP_-_EDNS0_4096_D_KN)
xerox.com/DNSKEY (alg 8, id 51724): No response was received until the UDP payload size was decreased, indicating that the server might be attempting to send a payload that exceeds the path maximum transmission unit (PMTU) size. See RFC 6891, Sec. 6.2.6. (13.13.138.12, UDP_-_EDNS0_4096_D_KN)
xerox.com/DNSKEY has warnings; select the "Denial of existence" DNSSEC option to see them.