edu to upf.edu: No valid RRSIGs made by a key corresponding to a DS RR were found covering the DNSKEY RRset, resulting in no secure entry point (SEP) into the zone. See RFC 4035, Sec. 2.2, RFC 6840, Sec. 5.11.
upf.edu zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (84.89.128.12, 84.89.128.13, 84.89.128.14)
upf.edu zone: There was an error resolving the following NS name(s) to address(es): ns1.upf.edu, ns2.upf.edu, ns3.upf.edu
upf.edu/A: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (84.89.128.12, 84.89.128.13, 84.89.128.14, UDP_-_NOEDNS_)
upf.edu/NS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (84.89.128.12, 84.89.128.13, 84.89.128.14, UDP_-_NOEDNS_)