irs.gov
Updated:
2023-04-18 10:28:59 UTC (535 days ago)
Go to most recent »
Notices
DNSSEC Authentication Chain
RRset status
Secure (7)
- irs.gov/A
- irs.gov/AAAA
- irs.gov/MX
- irs.gov/NS
- irs.gov/NSEC3PARAM
- irs.gov/SOA
- irs.gov/TXT
DNSKEY/DS/NSEC status
Secure (9)
- ./DNSKEY (alg 8, id 20326)
- ./DNSKEY (alg 8, id 60955)
- gov/DNSKEY (alg 8, id 24250)
- gov/DNSKEY (alg 8, id 50011)
- gov/DNSKEY (alg 8, id 7698)
- gov/DS (alg 8, id 7698)
- irs.gov/DNSKEY (alg 8, id 29359)
- irs.gov/DNSKEY (alg 8, id 34821)
- irs.gov/DS (alg 8, id 29359)
Delegation status
Secure (2)
- . to gov
- gov to irs.gov
Notices
Errors (11)
- irs.gov zone: There was an error resolving the following NS name(s) to address(es): ns1.irs.gov, ns2.irs.gov, ns3.irs.gov, ns4.irs.gov, ns5.irs.gov, ns6.irs.gov
- irs.gov/A: The response had an invalid RCODE (SERVFAIL). See RFC 1035, Sec. 4.1.1. (162.159.48.214, 2400:cb00:2049:1::a29f:3072, 2400:cb00:2049:1::a29f:30d6, 2400:cb00:2049:1::a29f:3157, 2400:cb00:2049:1::a29f:3169, UDP_-_NOEDNS_)
- irs.gov/DNSKEY: The response had an invalid RCODE (SERVFAIL). See RFC 1035, Sec. 4.1.1. (162.159.48.114, 162.159.48.214, 162.159.49.105, 2400:cb00:2049:1::a29f:3072, 2400:cb00:2049:1::a29f:30d6, 2400:cb00:2049:1::a29f:3157, 2400:cb00:2049:1::a29f:3169, UDP_-_EDNS0_512_D_KN, UDP_-_NOEDNS_)
- irs.gov/NS: The response had an invalid RCODE (SERVFAIL). See RFC 1035, Sec. 4.1.1. (162.159.48.114, 162.159.48.214, 162.159.49.87, 162.159.49.105, 2400:cb00:2049:1::a29f:3072, 2400:cb00:2049:1::a29f:30d6, 2400:cb00:2049:1::a29f:3157, UDP_-_NOEDNS_)
- irs.gov/NSEC3PARAM: DNSSEC was effectively downgraded because the response had an invalid RCODE (SERVFAIL) with EDNS enabled. See RFC 6891, Sec. 7, RFC 2671, Sec. 5.3. (2400:cb00:2049:1::a29f:3072, UDP_-_NOEDNS_)
- irs.gov/NSEC3PARAM: The DNSSEC records necessary to validate the response could not be retrieved from the server. See RFC 4035, Sec. 3.1.1, RFC 4035, Sec. 3.1.3. (2400:cb00:2049:1::a29f:3072, UDP_-_EDNS0_4096_D_KN)
- irs.gov/NSEC3PARAM: The response had an invalid RCODE (SERVFAIL) until EDNS was disabled (however, this server appeared to respond legitimately to other queries with EDNS enabled). See RFC 6891, Sec. 6.2.6. (2400:cb00:2049:1::a29f:3072, UDP_-_EDNS0_4096_D_KN)
- irs.gov/NSEC3PARAM: The response had an invalid RCODE (SERVFAIL). See RFC 1035, Sec. 4.1.1. (162.159.48.114, 162.159.48.214, 162.159.49.87, 162.159.49.105, 2400:cb00:2049:1::a29f:30d6, 2400:cb00:2049:1::a29f:3157, 2400:cb00:2049:1::a29f:3169, UDP_-_NOEDNS_)
- irs.gov/DNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
- irs.gov/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
- yx01v2qm3p.irs.gov/A has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (1)
- irs.gov/CNAME has warnings; select the "Denial of existence" DNSSEC option to see them.
JavaScript is required to make the graph below interactive.
