baidu.com zone: The server(s) responded over TCP with a malformed response or with an invalid RCODE. (111.45.3.226)
baidu.com/DNSKEY: No response was received from the server over UDP (tried 4 times). (111.45.3.226, UDP_-_EDNS0_512_D_KN)
baidu.com/MX: No response was received from the server over UDP (tried 4 times). (111.45.3.226, UDP_-_EDNS0_512_D_KN)
baidu.com/MX: No response was received from the server over UDP (tried 7 times). (111.45.3.226, UDP_-_EDNS0_4096_D)
baidu.com/NS: No response was received from the server over UDP (tried 12 times). (111.45.3.226, UDP_-_NOEDNS_)
baidu.com/SOA: No response was received from the server over TCP (tried 3 times). (111.45.3.226, TCP_-_EDNS0_4096_D_N)
baidu.com/SOA: No response was received from the server over UDP (tried 5 times). (111.45.3.226, UDP_-_EDNS0_512_)
baidu.com/SOA: No response was received from the server over UDP (tried 8 times). (111.45.3.226, UDP_-_EDNS0_512_)
baidu.com/SOA: No response was received from the server over UDP (tried 9 times). (111.45.3.226, UDP_-_EDNS0_512_)
Warnings (4)
baidu.com/A: No response was received from the server over UDP (tried 10 times) until the DO EDNS flag was cleared (however, this server appeared to respond legitimately to other queries with the DO EDNS flag set). (111.45.3.226, UDP_-_EDNS0_4096_D_KN)
baidu.com/SOA: No response was received until the UDP payload size was decreased, indicating that the server might be attempting to send a payload that exceeds the path maximum transmission unit (PMTU) size. (111.45.3.226, UDP_-_EDNS0_4096_D_KN)
com to baidu.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): dns.baidu.com
com to baidu.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: ns1.baidu.com