casmu.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 24 January 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.177 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by dk.mx1.mailanyone.net. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from this 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 |
|---|---|---|---|---|---|---|---|
| 185.21.40.177 | 3600s | vm1490.enterprisecloud.nu | AS48854 | team.blue Denmark A/S | 185.21.40.0/22 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 3600s | dk.mx1.mailanyone.net | 192.162.219.155 2a01:77c0:1619:4100:6fa6:1315:2bd2:51cd |
mx41.electric.net mx11.electric.net |
AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.8 |
| TXT Record |
|---|
| MS=ms18512556 |
| v=spf1 include:spf.protection.outlook.com include:web.shared.mysmtp.com include:spf.mailanyone.net -all |
| vpe=4426a232 |
| Policy | Record (casmu.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com include:web.shared.mysmtp.com include:spf.mailanyone.net -all |
| www | 185.21.40.177 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 6/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.dk.mx1.mailanyone.net | DANE-EE · Full cert · SHA-256 | 1AAAC405385DEB66C25E43D629569F6C… |
| SMTP _25._tcp.dk.mx1.mailanyone.net | DANE-EE · Full cert · SHA-256 | 443DFE296DAC92DD311766BAD0B04CC7… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026071101 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2025-01-24 |
| Expires | 2027-01-23 (96d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-18 06:38:55 | 1116ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-12 22:05:55 | 605ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-07 16:40:58 | 691ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-06 16:33:46 | 1279ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 17:23:08 | 781ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-07 12:29:57 | 16874ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-24 17:06:03 | 4898ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-14 05:03:25 shown | 934ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 01:45:22 | 895ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 19:41:09 | 486ms | 2 NS 1 A 1 MX | ⚠️ Bogus |
| 2026-06-16 19:41:08 | 709ms | 2 NS 1 A 1 MX | 🔒 Secure |