caltech.dk is a .dk domain served by 2 nameservers (ns1.loopia.se, ns2.loopia.se). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 91.189.41.129 is hosted by Hostek AB (AS29024) in Sweden. Mail is handled by caltech-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 91.189.41.129 | 3600s | webframe.ballou.se | AS29024 | Hostek AB | 91.189.40.0/21 | 🇸🇪 Sweden | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.213.232 |
| 🔶 Autoconfig | 91.189.41.129 |
| TXT Record |
|---|
| v=spf1 include:spf.protection.outlook.com include:mailgun.org include:send.heyloyalty.com include:spf.bedrock.lime-technologies.com -all |
| Policy | Record (caltech.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com include:mailgun.org include:send.heyloyalty.com include:spf.bedrock.lime-technologies.com -all |
| Policy | Record (_dmarc.caltech.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none |
| www CNAME | webframe.ballou.se (all on ballou.se) → 91.189.41.129 (AS29024) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 8/10 · policy: -all
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 1792022400 |
| Primary NS (MNAME) | ns1.loopia.se |
| Responsible (RNAME) | registry@loopia.se |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 86400s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 04:26:02 shown | 1562ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-08 12:10:41 | 3337ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-01 09:33:41 | 2575ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-30 09:32:08 | 734ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-24 05:22:30 | 1433ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-22 02:04:41 | 938ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-13 19:35:03 | 1685ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-06 17:34:34 | 1629ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-27 14:20:58 | 1566ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-20 12:09:02 | 11052ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-13 19:07:57 | 1988ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-10 12:38:59 | 4700ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-05 19:46:33 | 1710ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-23 12:42:52 | 2242ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-16 18:53:49 | 1675ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-09 18:40:05 | 8977ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-03 11:47:38 | 1786ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-27 04:38:07 | 1471ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-23 19:42:39 | 849ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-21 09:12:29 | 958ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 18:55:14 | 764ms | 2 NS 1 A 1 MX | 🔓 Insecure |