facebook.com

Updated: 2025-02-06 12:45:33 UTC (2 months ago) Go to most recent »

DNSSEC options (hide)

Notices

DNSSEC Authentication Chain

./DNSKEY (alg 8, id 20326)
./DNSKEY (alg 8, id 26470)
./DNSKEY (alg 8, id 38696)
NSEC3 proving non-existence of facebook.com/DS
com/DNSKEY (alg 13, id 19718)
com/DNSKEY (alg 13, id 23202)
com/DS (alg 13, id 19718)

com zone: The server(s) responded over TCP with a malformed response or with an invalid RCODE. See RFC 1035, Sec. 4.1.1. (192.26.92.30, 2001:502:1ca1::30)
com/DNSKEY: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (192.12.94.30, 192.31.80.30, UDP_-_EDNS0_512_D_KN)

com/DNSKEY (alg 13, id 19718): 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. (192.26.92.30, UDP_-_EDNS0_4096_D_KN)
com/DNSKEY (alg 13, id 19718): 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. (2001:502:1ca1::30, UDP_-_EDNS0_4096_D_KN)
com/DNSKEY (alg 13, id 23202): 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. (192.26.92.30, UDP_-_EDNS0_4096_D_KN)
com/DNSKEY (alg 13, id 23202): 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. (2001:502:1ca1::30, UDP_-_EDNS0_4096_D_KN)