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 adt.com

TypeValueTTLFirst/Last Observed
A 216.224.210.243 300 2026-08-11 08:10:15
MX adt-com.mail.protection.outlook.com 60 2026-08-11 08:10:15
NS ns1.f5clouddns.com 10035 2026-08-11 08:10:15
NS ns2.f5clouddns.com 10035 2026-08-11 08:10:15
SOA ns1.f5clouddns.com 21600 2026-08-11 08:10:15
TXT google-site-verification=mtp2FIRwXmInlzmS38EXPYTCq7qetVFT3IlQrX3Ounw 600 2026-08-11 08:10:15
TXT asv=f8bd595b25a067575a772e464cc65072 600 2026-08-11 08:10:15
TXT a9_QPAe1WF8ChnRHPDnw8A 600 2026-08-11 08:10:15
TXT autodesk-domain-verification=kfHMbXOMdMLc_hCt4ea4 600 2026-08-11 08:10:15
TXT Dynatrace-site-verification=1fb6b06e-8560-459f-94cc-4ef1612afbe2__9ma3dkdcgrfalf1veddfcssc4t 600 2026-08-11 08:10:15
TXT miro-verification=f00cdc2d64fce21a671aaf44faad0b313bf850b7 600 2026-08-11 08:10:15
TXT y4g6fwk5g624zfh8r7zxx628d5rphdkz 600 2026-08-11 08:10:15
TXT smartsheet-site-validation=GoUC5a2NrSk9EALaN-NF8Yzpgo-Tf_e7 600 2026-08-11 08:10:15
TXT docusign=cc519b86-de6c-466c-a2cd-576dfd2560d8 600 2026-08-11 08:10:15
TXT google-site-verification=kxkgtKL_HHfeFVDl_mDBqVGgHVDArKYSc0ekKs9yYyI 600 2026-08-11 08:10:15
TXT 91330e90-a7a3-4c47-8001-50a3e8f5af58 600 2026-08-11 08:10:15
TXT status-page-domain-verification=lm51vhj5mt14 600 2026-08-11 08:10:15
TXT docusign=6508d662-4412-48e7-be63-459d7a0865cd 600 2026-08-11 08:10:15
TXT v=spf1 include:aspmx.pardot.com include:_spf.salesforce.com include:spf.protection.outlook.com include:spf.adt.com -all 600 2026-08-11 08:10:15
TXT atlassian-domain-verification=7hx3qgQkSbw39YrxZDzJ39XSZTEhwnR1GLF0z5UvEPF45PxbaP5LWEJbWatQOjeV 600 2026-08-11 08:10:15
TXT docker-verification=91330e90-a7a3-4c47-8001-50a3e8f5af58 600 2026-08-11 08:10:15
TXT IovJ+cHYQ5n1oQafzKkwK7+p6onwo5L/xyMT9QIO0Oe9LLNmn7CGiLRj8Ns8nxbVwSes8SrSZYOVZoakedUzzQ== 600 2026-08-11 08:10:15
TXT Dynatrace-site-verification=d5aeea6c-9946-4d88-a913-e2e07d16ae74__eoscspo1n69nbk3lq7jq36enes 600 2026-08-11 08:10:15
TXT gn4y85rgn1bsf5n8r9ml74t4vth5lc42 600 2026-08-11 08:10:15
TXT postman-domain-verification=ad9b69b164db4243c038bf8994969a54279739d311b24283665e141bd550eb36eeb45f8745e8ada27e069d7397913ed954de1e9c43a164b6a2787d157d3bf55f 600 2026-08-11 08:10:15
TXT _aei47q3tt330ou93xt8x749ddusmwjd 600 2026-08-11 08:10:15
TXT _mubgbyrjqju2df3e89x63esbi936v84 600 2026-08-11 08:10:15
TXT nitro-verification-code=1234abcd1234abcd1234abc= 600 2026-08-11 08:10:15
TXT MS=ms19676409 600 2026-08-11 08:10:15
TXT google-site-verification=pEbLE9xUQzIjt5zS8ha1Ff6l2lJq2OiHOhweAfABEgU 600 2026-08-11 08:10:15
TXT Dynatrace-site-verification=dcdaed8a-acf8-4360-837f-c9c73f8636e1__au7qp1pq9klogrvhcbfqsrvjqo 600 2026-08-11 08:10:15
TXT smartsheet-site-validation=2k0GvzZb7iXkhE-evOS3SCZ7cfjnzwoY 600 2026-08-11 08:10:15
TXT jamf-site-verification=_4TERpNPk3thC9aeGFZ7Qg 600 2026-08-11 08:10:15
TXT pardot953633=41956651af54b5b7223ff83b67afbf60aa62a5bca0aefc15dc7cede160e48a68 600 2026-08-11 08:10:15

Most-Observed Hosts

HostRecordsLast Seen
aaa.com 1025d ago
cisco.com 992d ago
fedex.com 825d ago
amazon.com 702d ago
kering.com 652d ago
prudential.com 645d ago
marriott.com 625d ago
udemy.com 605d ago
pb.com 604d ago
ringcentral.com 575d ago
chanel.com 5314h ago
zoominfo.com 5221h ago
appen.com 513d ago
185.220.101.19 50Aug 08, 2026
185.220.101.25 50Aug 07, 2026
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