DNS Report: hackmd.io

Generated: 2026-08-09T02:52:13-05:00

93/100

Diagnostics

StatusCheckPointsDetails
OKIPv4 (A)30/302 IPv4 address(es) detected.
OKIPv6 (AAAA)10/103 IPv6 address(es) detected.
OKName server redundancy20/204 NS record(s); 2 or more required.
OKSOA record10/10Authoritative zone record.
OKDNSSEC chain15/15DS and DNSKEY detected.
OKCAA policy5/5Certificate authority restriction.
OKDNS propagation10/10Agreement between public resolvers.
OKMX records20/205 MX record(s).
OKSPF25/25SPF policy published.
OKDMARC25/25DMARC policy published.
OKDKIM20/20A DKIM selector was verified.
ERRORMTA-STS0/5Mail transport policy.
ERRORTLS-RPT0/5TLS reporting policy.
OKValid TLS certificate55/55177 day(s) remaining.
OKCertificate lifetime10/10Full points require at least 30 days remaining.
WARNINGHTTP security headers16/354 of 9 evaluated headers detected.
OKPTR reverse DNS30/30PTR: a865a9e11bc2c0d65.awsglobalaccelerator.com
OKIPv4 diversity35/35Two or more IPv4 addresses receive full points.
OKIPv6 connectivity35/35AAAA availability.
OKDNS resolution40/40At least one address family must resolve.
OKHTTP response40/40HTTP/2 200
OKHTTPS final URL20/20Final URL uses HTTPS.

DNS Records

TipoValues
A
75.2.77.152
99.83.179.177
AAAA
2406:da14:88d:a100:509b:269a:a86a:469
2406:da14:88d:a101:6a1e:666e:6b0b:2229
2406:da14:88d:a102:65d7:74a6:1e55:5003
CNAME
MX
5 alt1.aspmx.l.google.com.
10 alt3.aspmx.l.google.com.
1 aspmx.l.google.com.
5 alt2.aspmx.l.google.com.
10 alt4.aspmx.l.google.com.
TXT
"apple-domain-verification=HnlQ3AxJK6XOBK37"
"bw=8qGCJqfuH16sCug6AQzGtfUnzPCoeYlw2CtDDqrVUlQE"
"v=spf1 include:amazonses.com include:zoho.com include:servers.mcsv.net include:mail.zendesk.com include:mailgun.org include:_spf.google.com ~all"
"1password-site-verification=57QCQRGM55BBXPSVY7HZ2PLKJ4"
"google-site-verification=Yr_Bo_yeVoZeSEPkuJe4pugd0xb7gNecEcm0VauL3Xc"
"MS=ms17207355"
"linkedin-site-verification=5d31432e-bc68-4ef3-9cee-139129f957b4"
"google-site-verification=d-uL-RwYIwGp2juReXK632sSBTtVCCKWghWmt2fC05s"
"anthropic-domain-verification-ekxc7r=4lWNrSKPr2Z7oG6fkxggmBiED"
"cursor-domain-verification-2jk9c4=aMLb6LeKrCxC5zZDxaO6YViu0"
"google-site-verification=4C6HQbZYXANAOkpGxSjVMQ5Y2rnkxnDKI5foWeuv5tU"
NS
ns-221.awsdns-27.com.
ns-1444.awsdns-52.org.
ns-845.awsdns-41.net.
ns-1925.awsdns-48.co.uk.
SOA
ns-221.awsdns-27.com. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
CAA
0 iodef "mailto:support@hackmd.io"
0 issuewild "awstrust.com"
0 issuewild "amazontrust.com"
0 issuewild "letsencrypt.org"
0 issuewild "amazon.com"
0 issuewild "amazonaws.com"
DS
54360 13 2 CF91241F9513C3AE8E559A21F9D4A553F5F48E4E30F5219231DEAE0C 72C76D02
DNSKEY
256 3 13 tQlto1YXF3+Upfq18j24Y+GlGOIB43qUNM5oizB2L0g2wAri8ug50I7q LKigFn02dSScAkkojfnTkgsZt0LMXw==
256 3 13 qL+Dg/zfNYTwyuMw7hJHgHmUVUl7+cOvcBboJmkpqYDRpRe6tN8XHIS5 vIou38Sf8k/leoIhd9pVeLQBfBE1uw==
257 3 13 hgcd7jVVnkL9kiizf6/yBqHeoCy+0+R1rGvXJRLLhX+mMvYaMOC/BoHS hOzHlRugiEbDaNlY+syEKR+eCrx7DQ==
RRSIG
NS 13 2 172800 20260811085201 20260809065201 23774 hackmd.io. lLWN9fxoWoCz6Xqxb8xITP1G3qMI5eJAqLT7DpLG0WhAbZbnbp73kpMt blcx2I6XUyF59cTUVcjUZ1rkw++6JQ==
AAAA 13 2 60 20260809085301 20260809065201 23774 hackmd.io. gq+y2tTW3BcsZxMGUCqwA/sBReTDS28GsK0QfFkzSITC2ufCNWZRPW3z R7kVlWDRP1P62hNrTOiXEI39w8RkBA==
A 13 2 300 20260809085701 20260809065201 23774 hackmd.io. MKldLQndR20Lz/HKmybERZgy59NDlNHfw8r1kD96+BpDuE/9FLTbJUMr 4O7df0wNz3BrJ/3za1Dd1R1U0GL2+Q==
DS 8 2 3600 20260822160612 20260801150612 46863 io. bUa2xGbiCl44c9bmldLiZae9SKGzFqGC0eSpAATVsqjsNV+tljHgHh2Q hHRfANCs7VgI8y4PIreLVr+WRkvlXiJ4V4arDpIDJnoY17dkB22qEVj9 Aa6HqGaRdgUYEQUi6CPooNAtmgNoJSebc7fMbnuJRKzgjNxWa4LK44ct 7K8=
CAA 13 2 300 20260809085701 20260809065201 23774 hackmd.io. mAes/txLDwUmkip+94dSH2ayNnK/NsatZmk1hRnrcd8bS4+czebJ3AZs 7vlQJRc7qRTngXJJ+2qR8DIU2YrctQ==
NSEC
NSEC3
SRV
NAPTR
TLSA
SSHFP