airgas.com/SOA: No RRSIG covering the RRset was returned in the response. (3.217.250.18, 103.144.206.29, 185.188.178.234, 194.2.192.5, TCP_-_EDNS0_4096_D)
Warnings (1)
com to airgas.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): ns04.airliquide.com