Passive DNS

Historic DNS Timeline

Shows every DNS record the platform has observed over time (the DNS audit appends, it doesn't overwrite). For deep historic passive DNS beyond your own observations, add a provider like SecurityTrails/WhoisXML (API key).

Observed Records for cothrons.com

TypeValueTTLFirst/Last Observed
A 199.34.228.69 14400 2026-08-06 20:44:20
MX alt3.aspmx.l.google.com 14400 2026-08-06 20:44:20
MX alt4.aspmx.l.google.com 14400 2026-08-06 20:44:20
MX aspmx.l.google.com 14400 2026-08-06 20:44:20
MX alt1.aspmx.l.google.com 14400 2026-08-06 20:44:20
MX alt2.aspmx.l.google.com 14400 2026-08-06 20:44:20
NS dns097.a.register.com 14400 2026-08-06 20:44:20
NS dns010.c.register.com 14400 2026-08-06 20:44:20
NS dns083.d.register.com 14400 2026-08-06 20:44:20
NS dns242.b.register.com 14400 2026-08-06 20:44:20
SOA dns097.a.register.com 14400 2026-08-06 20:44:20
TXT apple-domain-verification=bwB1BlzkbENFJYaV 14400 2026-08-06 20:44:20
TXT 400fde42-4989-38d3-e063-0100007f7036 14400 2026-08-06 20:44:20
TXT Sendinblue-code:0469b061981a6636ab290a5ab924c20d 14400 2026-08-06 20:44:20
TXT v=spf1 include:spf.sendinblue.com include:_spf.google.com ~all 14400 2026-08-06 20:44:20

Most-Observed Hosts

HostRecordsLast Seen
185.220.101.29 503h ago
github.com 3315h ago
google.com 3115h ago
mempool.space 3013h ago
SSH.COM 2314h ago
gmail.com 2214h ago
torproject.org 2117h ago
171.25.193.235 195h ago
171.25.193.132 195h ago
171.25.193.25 195h ago
171.25.193.82 1915h ago
StopForumSpam.com 1814h ago
2017-2021.state.gov 1812h ago
www.jpcert.or.jp 1816h ago
creativecommons.org 1813h ago
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