4830.org zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (2a01:4f9:3b:5822:0:41ff:fe15:598a, 2a06:e881:1700:1:5054:ff:fe42:aa9a)
Warnings (3)
NSEC3 proving non-existence of 4830.org/DS: The salt value for an NSEC3 record should be empty. See RFC 9276, Sec. 3.1.
NSEC3 proving non-existence of 4830.org/DS: The salt value for an NSEC3 record should be empty. See RFC 9276, Sec. 3.1.
org to 4830.org: The following NS name(s) were found in the authoritative NS RRset, but not in the delegation NS RRset (i.e., in the org zone): librarian.uu.org See RFC 1034, Sec. 4.2.2.