com to exxonmobil.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): use6.akam.net, ns2-67.akam.net See RFC 1034, Sec. 4.2.2.
com to exxonmobil.com: The following NS name(s) were found in the delegation NS RRset (i.e., in the com zone), but not in the authoritative NS RRset: a13-67.akam.net, a3-66.akam.net See RFC 1034, Sec. 4.2.2.