harbeck-soerensen.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 9 February 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by 79728257.pamx1.hotmail.com. The zone is DNSSEC-signed and validates, has no 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.
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | 79728257.pamx1.hotmail.com | 52.101.10.0 52.101.40.101 52.101.42.15 52.101.60.172 |
— — — — |
AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | systemone.harbeck-soerensen.dk → 83.90.220.42 |
| 🔶 Autoconfig | systemone.harbeck-soerensen.dk → 83.90.220.42 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 0 | 2 | 5061 | federation.messenger.msn.com |
| TXT Record |
|---|
| v=spf1 include:hotmail.com ~all |
| Policy | Record (harbeck-soerensen.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:hotmail.com ~all |
| www CNAME | systemone.harbeck-soerensen.dk (all on harbeck-soerensen.dk) → 83.90.220.42 (AS3292) |
| www vs bare domain | Only www resolves (all like this) |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 2/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.harbeck-soerensen.dk | systemone.harbeck-soerensen.dk |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026092501 |
| 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 | 2005-02-09 |
| Expires | 2027-02-28 (131d) |
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 |
|---|---|---|---|
| 2026-10-07 21:47:57 shown | 404ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-27 23:37:12 | 524ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-26 14:34:56 | 533ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-23 13:41:13 | 691ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-27 10:47:07 | 634ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-26 16:00:45 | 746ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-07-26 16:50:54 | 8627ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-07-24 15:56:25 | 4981ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-07-22 06:45:23 | 4809ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-25 05:14:32 | 1078ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-17 11:10:56 | 492ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-17 11:06:55 | 820ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-17 11:03:57 | 784ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-17 10:55:19 | 1126ms | 2 NS 0 A 1 MX | 🔒 Secure |