americanexpress.com
Updated:
2023-05-23 15:12:30 UTC (551 days ago)
Go to most recent »
Notices
DNSSEC Authentication Chain
RRset status
Insecure (11)
- americanexpress.com/A
- americanexpress.com/A
- americanexpress.com/A
- americanexpress.com/A
- americanexpress.com/A
- americanexpress.com/A
- americanexpress.com/A
- americanexpress.com/MX
- americanexpress.com/NS
- americanexpress.com/SOA
- americanexpress.com/TXT
Secure (2)
- com/SOA
- com/SOA
DNSKEY/DS/NSEC status
Secure (6)
- ./DNSKEY (alg 8, id 20326)
- ./DNSKEY (alg 8, id 60955)
- NSEC3 proving non-existence of americanexpress.com/DS
- com/DNSKEY (alg 8, id 30909)
- com/DNSKEY (alg 8, id 46551)
- com/DS (alg 8, id 30909)
Delegation status
Insecure (1)
- com to americanexpress.com
Secure (1)
- . to com
Notices
Errors (1)
- ./DNSKEY: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (192.228.79.201, UDP_-_EDNS0_512_D_KN)
Warnings (6)
- ./DNSKEY (alg 8, id 20326): 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. (199.9.14.201, UDP_-_EDNS0_4096_D_KN)
- ./DNSKEY (alg 8, id 60955): 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. (199.9.14.201, UDP_-_EDNS0_4096_D_KN)
- com/DS (alg 8, id 30909): 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. (192.228.79.201, UDP_-_EDNS0_4096_D_KN)
- com/DS (alg 8, id 30909): 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. (192.228.79.201, UDP_-_EDNS0_4096_D_KN)
- com/DS (alg 8, id 30909): 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. (199.9.14.201, UDP_-_EDNS0_4096_D_KN)
- com/DS (alg 8, id 30909): 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. (199.9.14.201, UDP_-_EDNS0_4096_D_KN)
JavaScript is required to make the graph below interactive.
