production.cloudflare.docker.com
Updated:
2020-03-25 14:58:07 UTC (1705 days ago)
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Notices
DNSSEC Authentication Chain
RRset status
Insecure (5)
- cloudflare.docker.com/A (NXDOMAIN)
- docker.com/SOA
- production.cloudflare.docker.com/A
- production.cloudflare.docker.com/NS
- production.cloudflare.docker.com/SOA
Secure (1)
- com/SOA
DNSKEY/DS/NSEC status
Secure (7)
- ./DNSKEY (alg 8, id 20326)
- ./DNSKEY (alg 8, id 33853)
- ./DNSKEY (alg 8, id 48903)
- NSEC3 proving non-existence of docker.com/DS
- com/DNSKEY (alg 8, id 30909)
- com/DNSKEY (alg 8, id 56311)
- com/DS (alg 8, id 30909)
Delegation status
Insecure (2)
- com to docker.com
- docker.com to production.cloudflare.docker.com
Secure (1)
- . to com
Notices
Errors (9)
- docker.com/DNSKEY: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (205.251.194.56, UDP_-_EDNS0_512_D_K)
- production.cloudflare.docker.com/A: A query for production.cloudflare.docker.com results in a NOERROR response, while a query for its ancestor, cloudflare.docker.com, returns a name error (NXDOMAIN), which indicates that subdomains of cloudflare.docker.com, including production.cloudflare.docker.com, don't exist. See RFC 8020, Sec. 2. (173.245.58.91, 173.245.59.140, 2606:4700:50::adf5:3a5b, 2606:4700:58::adf5:3b8c, UDP_-_EDNS0_4096_D_K)
- production.cloudflare.docker.com/NS: A query for production.cloudflare.docker.com results in a NOERROR response, while a query for its ancestor, cloudflare.docker.com, returns a name error (NXDOMAIN), which indicates that subdomains of cloudflare.docker.com, including production.cloudflare.docker.com, don't exist. See RFC 8020, Sec. 2. (173.245.58.91, 173.245.59.140, 2606:4700:50::adf5:3a5b, 2606:4700:58::adf5:3b8c, UDP_-_EDNS0_4096_D_K)
- production.cloudflare.docker.com/SOA: A query for production.cloudflare.docker.com results in a NOERROR response, while a query for its ancestor, cloudflare.docker.com, returns a name error (NXDOMAIN), which indicates that subdomains of cloudflare.docker.com, including production.cloudflare.docker.com, don't exist. See RFC 8020, Sec. 2. (173.245.58.91, 173.245.59.140, 2606:4700:50::adf5:3a5b, 2606:4700:58::adf5:3b8c, TCP_-_EDNS0_4096_D, UDP_-_EDNS0_4096_D_K, UDP_-_EDNS0_4096_D_K_0x20)
- production.cloudflare.docker.com/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
- production.cloudflare.docker.com/DNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
- production.cloudflare.docker.com/TXT has errors; select the "Denial of existence" DNSSEC option to see them.
- production.cloudflare.docker.com/AAAA has errors; select the "Denial of existence" DNSSEC option to see them.
- production.cloudflare.docker.com/MX has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (6)
- cloudflare.docker.com/A (NXDOMAIN): No response was received from the server over UDP (tried 6 times) until the COOKIE EDNS option was removed (however, this server appeared to respond legitimately to other queries with the COOKIE EDNS option present). See RFC 6891, Sec. 6.1.2. (205.251.192.207, UDP_-_EDNS0_4096_D_K)
- cloudflare.docker.com/A (NXDOMAIN): 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. (205.251.194.56, UDP_-_EDNS0_4096_D_K)
- com to docker.com: Authoritative AAAA records exist for ns-207.awsdns-25.com, but there are no corresponding AAAA glue records. See RFC 1034, Sec. 4.2.2.
- docker.com to production.cloudflare.docker.com: 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. (205.251.192.207, 205.251.194.56, UDP_-_EDNS0_4096_D_K)
- docker.com to production.cloudflare.docker.com: The server(s) for the parent zone (docker.com) responded with a referral instead of answering authoritatively for the DS RR type. See RFC 4034, Sec. 5. (205.251.192.207, 205.251.194.56, 205.251.197.9, 205.251.199.189, 2600:9000:5300:cf00::1, 2600:9000:5302:3800::1, 2600:9000:5305:900::1, 2600:9000:5307:bd00::1, UDP_-_EDNS0_4096_D_K)
- production.cloudflare.docker.com/DS has warnings; select the "Denial of existence" DNSSEC option to see them.
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