alsm.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 14 April 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. The zone is DNSSEC-signed and validates, publishes a 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.
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (alsm.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.alsm.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:411e93a49363311@rep.dmarcanalyzer.com; ruf=mailto:411e93a49363311@for.dmarcanalyzer.com; fo=1; |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves alsm.dk: no address www.alsm.dk: no address |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 0/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026081302 |
| 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 | ONE.COM A/S |
| Registered | 1998-04-14 |
| Expires | 2027-06-30 (251d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-14 01:27:38 | 294ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-08 09:47:30 | 1517ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-07 17:37:16 | 362ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-01 03:29:20 | 433ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-28 08:00:43 | 554ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-13 13:37:36 shown | 2401ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-28 05:20:06 | 463ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-28 02:38:00 | 547ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-20 04:20:59 | 471ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-16 13:24:13 | 549ms | 2 NS 0 A 0 MX | 🔒 Secure |