de to postbank.de: 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.
postbank.de zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (185.157.33.19, 185.157.33.32, 185.157.35.19)
postbank.de zone: There was an error resolving the following NS name(s) to address(es): ns1.postbank.de, ns2.postbank.de, ns3.postbank.de
postbank.de/A: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (185.157.33.19, 185.157.33.32, 185.157.35.19, UDP_-_NOEDNS_)
postbank.de/NS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (185.157.33.19, 185.157.33.32, 185.157.35.19, UDP_-_NOEDNS_)