sina.cn
Updated:
2020-03-20 05:01:51 UTC (1709 days ago)
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Notices
DNSSEC Authentication Chain
RRset status
Insecure (5)
- sina.cn/A
- sina.cn/MX
- sina.cn/NS
- sina.cn/SOA
- sina.cn/TXT
Secure (5)
- cn/SOA
- cn/SOA
- cn/SOA
- cn/SOA
- cn/SOA
DNSKEY/DS/NSEC status
Secure (6)
- ./DNSKEY (alg 8, id 20326)
- ./DNSKEY (alg 8, id 33853)
- NSEC3 proving non-existence of sina.cn/DS
- cn/DNSKEY (alg 8, id 38388)
- cn/DNSKEY (alg 8, id 57724)
- cn/DS (alg 8, id 57724)
Delegation status
Insecure (1)
- cn to sina.cn
Secure (1)
- . to cn
Notices
Errors (5)
- NSEC3 proving non-existence of sina.cn/DS: An iterations count of 0 must be used in NSEC3 records to alleviate computational burdens. See RFC 9276, Sec. 3.1.
- NSEC3 proving non-existence of sina.cn/DS: An iterations count of 0 must be used in NSEC3 records to alleviate computational burdens. See RFC 9276, Sec. 3.1.
- cn zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (203.119.27.1)
- cn/DNSKEY: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (66.198.183.65, UDP_-_EDNS0_512_D_K)
- sina.cn/DS has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (8)
- . to cn: Authoritative AAAA records exist for ns.cernet.net, but there are no corresponding AAAA glue records. See RFC 1034, Sec. 4.2.2.
- . to cn: The glue address(es) for ns.cernet.net (202.112.0.44) differed from its authoritative address(es) (103.137.60.44). See RFC 1034, Sec. 4.2.2.
- NSEC3 proving non-existence of sina.cn/DS: The salt value for an NSEC3 record should be empty. See RFC 9276, Sec. 3.1.
- NSEC3 proving non-existence of sina.cn/DS: The salt value for an NSEC3 record should be empty. See RFC 9276, Sec. 3.1.
- cn to sina.cn: The following NS name(s) were found in the authoritative NS RRset, but not in the delegation NS RRset (i.e., in the cn zone): ns1.sina.com.cn See RFC 1034, Sec. 4.2.2.
- cn/DNSKEY (alg 8, id 38388): 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. See RFC 6891, Sec. 6.2.6. (66.198.183.65, UDP_-_EDNS0_4096_D_K)
- cn/DNSKEY (alg 8, id 57724): 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. See RFC 6891, Sec. 6.2.6. (66.198.183.65, UDP_-_EDNS0_4096_D_K)
- sina.cn/DS has warnings; select the "Denial of existence" DNSSEC option to see them.
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