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 castec.com
| Type | Value | TTL | First/Last Observed |
|---|---|---|---|
| A | 15.197.225.128 |
3600 | 2026-08-10 18:08:04 |
| A | 3.33.251.168 |
3600 | 2026-08-10 18:08:04 |
| MX | castec-com.mail.protection.outlook.com |
3600 | 2026-08-10 18:08:04 |
| NS | ns38.domaincontrol.com |
3600 | 2026-08-10 18:08:04 |
| NS | ns37.domaincontrol.com |
3600 | 2026-08-10 18:08:04 |
| SOA | ns37.domaincontrol.com |
600 | 2026-08-10 18:08:04 |
| TXT | MS=5C7A7E0B2BBB4BF3D2511F3ED656E354D421EBFA |
3600 | 2026-08-10 18:08:04 |
| TXT | MS=ms13674227 |
3600 | 2026-08-10 18:08:04 |
| TXT | v=spf1 include:spf.protection.outlook.com ~all |
3600 | 2026-08-10 18:08:04 |
Most-Observed Hosts
| Host | Records | Last Seen |
|---|---|---|
aaa.com |
102 | 4d ago |
cisco.com |
99 | 16h ago |
fedex.com |
82 | 4d ago |
amazon.com |
70 | 17h ago |
kering.com |
65 | 1d ago |
prudential.com |
64 | 4d ago |
marriott.com |
62 | 4d ago |
pb.com |
60 | 2d ago |
udemy.com |
60 | 3d ago |
ringcentral.com |
57 | 3d ago |
zoominfo.com |
52 | 5d ago |
appen.com |
51 | 2d ago |
185.220.101.24 |
50 | 5d ago |
185.220.101.26 |
50 | 5d ago |
185.220.101.23 |
50 | 6d ago |
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