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 udemy.com

TypeValueTTLFirst/Last Observed
A 104.16.143.237 300 2026-08-10 17:49:44
A 104.16.142.237 300 2026-08-10 17:49:44
AAAA 2606:4700::6810:8eed 300 2026-08-10 17:49:44
AAAA 2606:4700::6810:8fed 300 2026-08-10 17:49:44
MX alt3.aspmx.l.google.com 300 2026-08-10 17:49:44
MX aspmx.l.google.com 300 2026-08-10 17:49:44
MX alt4.aspmx.l.google.com 300 2026-08-10 17:49:44
MX alt1.aspmx.l.google.com 300 2026-08-10 17:49:44
MX aspmx3.googlemail.com 300 2026-08-10 17:49:44
MX aspmx2.googlemail.com 300 2026-08-10 17:49:44
MX alt2.aspmx.l.google.com 300 2026-08-10 17:49:44
NS pete.ns.cloudflare.com 19631 2026-08-10 17:49:44
NS anna.ns.cloudflare.com 19631 2026-08-10 17:49:44
SOA anna.ns.cloudflare.com 60 2026-08-10 17:49:44
TXT globalsign-domain-verification=K9ZBZYNiNsNNOiaY2Tbjn-Bfe0dWwAwpstKoOOVJWO 120 2026-08-10 17:49:44
TXT cloudhealth=8d6a3d7f-ed91-4280-8422-b4b27b3dfcda 120 2026-08-10 17:49:44
TXT google-site-verification=lKnsAORvM6iM1XErS9RH0TeVGG7VfTb5ST7PGx1AQ-w 120 2026-08-10 17:49:44
TXT google-site-verification=mSmGycRVFusrCec4blSh608oUai-y0AumEuI3OlaGBo 120 2026-08-10 17:49:44
TXT stripe-verification=a4f63d60cd50bfe9f3b2c2d8aa55bc596a98ab6e0f0f2e9d798c6939ece90b90 120 2026-08-10 17:49:44
TXT google-site-verification=4E_wLzpH4XLGfUSem4QVA6mUpRJDjvZ03pG1jU56hNM 120 2026-08-10 17:49:44
TXT stripe-verification=5808adfa0c91e8dfe4ecd14f20c22ba0d54b6e8b71b23a5eada978511a246e1a 120 2026-08-10 17:49:44
TXT stripe-verification=8ad760d1d60c9bbd83b03ed7fe20a10682f7d65774aa9db13a0b524e51cefe2c 120 2026-08-10 17:49:44
TXT miro-verification=f165badb21a511b048a7f7a9fba3352c0db8b09b 120 2026-08-10 17:49:44
TXT pendo-domain-verification=595ba9d5-03ac-4aee-b50f-168214b6a32a 120 2026-08-10 17:49:44
TXT stripe-verification=4d955ddab5b0fc6cf1931b41935e45f7997f3b13677532d11e6a90b58f5156aa 120 2026-08-10 17:49:44
TXT onetrust-domain-verification=2a6df466515246c4a7c37104f55a82b8 120 2026-08-10 17:49:44
TXT _nbghqs48lzt0emavhip5o2dyy5kb0xy 120 2026-08-10 17:49:44
TXT loom-site-verification=f173ba1cc44648d0ac2bbd0919868a6b 120 2026-08-10 17:49:44
TXT google-site-verification=FZsUD-xuwip73XO7XfuX-4kDEY-_Qel0klHmmu6CB5k 120 2026-08-10 17:49:44
TXT stripe-verification=044c7ed24abd68184b0a86b00dbd47b87d1db3a5eb2ee132df5131bfc6fe29d1 120 2026-08-10 17:49:44
TXT docusign=206e891a-5b22-4d4c-9a10-85066ba89160 120 2026-08-10 17:49:44
TXT zero-path-domain-verification-6e9hdw=BtrY4vZKLJdp2XlFj1sE4FFVG 120 2026-08-10 17:49:44
TXT stripe-verification=e2909d7f06f271e18ace56ef06db7b552e6692c312adfedaf6cea1a2e0d63125 120 2026-08-10 17:49:44
TXT openai-domain-verification=dv-ncbISx7kF83lZ69Xc97AoraD 120 2026-08-10 17:49:44
TXT apple-domain-verification=MntOsncD5C5BxosV 120 2026-08-10 17:49:44
TXT v=spf1 include:_spf.google.com include:mktomail.com include:spf.mtasv.net include:mail.zendesk.com include:_spf.salesforce.com -all 120 2026-08-10 17:49:44
TXT google-site-verification=ld8CL_RjIj_FPsIdElHPqkhOMJ8Rixk1y7-s0Opi-90 120 2026-08-10 17:49:44
TXT google-site-verification=RuYIvfeP5e2eBgQzIaky9XuiCkkrVE2KUBULndTtFE4 120 2026-08-10 17:49:44
TXT MS=ms39886121 120 2026-08-10 17:49:44
TXT stripe-verification=e006b01ab77ebbe2e6c509a4e2280540bfea979f8c49ed3efd225004aa2f6292 120 2026-08-10 17:49:44
TXT jamf-site-verification=L9yfsaaKM7FxdBtc5kWk6g 120 2026-08-10 17:49:44
TXT _globalsign-domain-verification=9UioyPO0_F2Epyd3gGV5_VklXzoibTukD_jkbZPw43 120 2026-08-10 17:49:44
TXT docusign=d078f828-536c-4ce3-a867-b26ad811bb8a 120 2026-08-10 17:49:44
TXT cursor-domain-verification-pae8cg=8gFowcF4OpBSeYJTIw0GYPFvL 120 2026-08-10 17:49:44
TXT prowly-verification=bebd281d32a3e1b8140345e1f876f82eff2ba617d782c6206e7c21fd9fdbd880 120 2026-08-10 17:49:44
TXT globalsign-domain-verification=fB1XzR_1Hvbw32pP6EbLFlB9r4pxcc86XOgA7B7DyV 120 2026-08-10 17:49:44
TXT adobe-idp-site-verification=e54c98a1c7f23b54b8ac4b7b75952259c173d7bfba731f72db60eb7ad4e63d97 120 2026-08-10 17:49:44
TXT globalsign-domain-verification=Bo6R5k9s2Zwdk5OoeybGk6L2EHx_oV1TqLgGiMR4IQ 120 2026-08-10 17:49:44
TXT canva-site-verification=Ng9bmmu7vJyWHYrTk_wUZw 120 2026-08-10 17:49:44
TXT twilio-domain-verification=8e64b1bb044ab98ebbd3638c1babb25a 120 2026-08-10 17:49:44
TXT citrix-verification-code=6b798901-86c6-452c-a3ea-ed718cab39bd 120 2026-08-10 17:49:44
TXT atlassian-domain-verification=YpSV2agr6k+w5lkm2ml8m8/N+xCTPcXjTKwDomeoJJTrgnmCoeRyXs/U576G4Cz2 120 2026-08-10 17:49:44
TXT atlassian-domain-verification=iztR9OQCHGIVBm5w5PmFPf1nTaqiOROSuNTF9Kv0idnfzCBmAsbfwGEF2aOK+yo4 120 2026-08-10 17:49:44
TXT stripe-verification=54fa1ebf13b6990c87e17caffc4829d9600d3bd0ca60b24e6bf9ae530baf37f3 120 2026-08-10 17:49:44
TXT google-site-verification=0Gl3_FzqmUkS2NHg_Wd5pmGiSmt_Jk4MVnaCiDbhDnY 120 2026-08-10 17:49:44
TXT _globalsign-domain-verification=oJsQtL3M8axaRGjlRJ4BstY+1TfWDryoeAouwRxay7A= 120 2026-08-10 17:49:44
TXT google-site-verification=Ca1sgMRin5VW1yxjUntivQ3-RySo8SmJcWR6zgFW_w0 120 2026-08-10 17:49:44
TXT google-site-verification=IKMJeRfamsooHAMaTQdFDaQ4MsfeW1Nr6F7DPDEkycg 120 2026-08-10 17:49:44
TXT apple-domain-verification=IEscmDl7jHBZDO_dBAG0xMjbBbPxomU_9rqwksKrNmk 120 2026-08-10 17:49:44
TXT google-site-verification=c7RTHsaBu_LU5KgIFuPCWa5yxuTrkOGYtKaYt85mrq8 120 2026-08-10 17:49:44

Most-Observed Hosts

HostRecordsLast Seen
aaa.com 1021d ago
fedex.com 821d ago
prudential.com 641d ago
marriott.com 621d ago
udemy.com 6014h ago
ringcentral.com 5722h ago
zoominfo.com 522d ago
185.220.101.19 502d ago
185.220.101.5 503d ago
185.220.101.13 504d ago
185.220.101.24 502d ago
185.220.101.29 504d ago
185.220.101.26 502d ago
185.220.101.23 504d ago
185.220.101.22 502d ago
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