carstenholm.dk is a .dk domain served by 2 nameservers (ns1.atznet.dk, ns2.atznet.dk). It was registered on 1 October 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 81.95.249.192 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by carstenholm-dk.mail.protection.outlook.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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 81.95.249.192 | 3600s | dw-d058.dw-mgmt.lan | AS48854 | team.blue Denmark A/S | 81.95.240.0/20 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.149.152 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| google-site-verification=7BhiMnBcTj_dcqN0bp8-hStPc9QiAVRzlo4PijBuCr0 |
| v=spf1 ip4:5.103.12.83 ip4:5.103.12.82 ip4:212.97.232.73 include:spf.protection.outlook.com include:_spf.atznet.dk include:spf.dynamicweb-cms.com a:smtp.dynamicweb.cloud ~all |
| Policy | Record (carstenholm.dk) |
|---|---|
| ~all (soft fail) | v=spf1 ip4:5.103.12.83 ip4:5.103.12.82 ip4:212.97.232.73 include:spf.protection.outlook.com include:_spf.atznet.dk include:spf.dynamicweb-cms.com a:smtp.dynamicweb.cloud ~all |
| www CNAME | carstenholm.dk (all on carstenholm.dk) → 81.95.249.192 (AS48854) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 6/10 · policy: ~all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026042902 |
| Primary NS (MNAME) | ns1.atznet.dk |
| Responsible (RNAME) | hostmaster@atznet.dk |
| Refresh | 86400s |
| Retry | 7200s |
| Expire | 3600000s |
| Minimum (neg-cache TTL) | 172800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 1997-10-01 |
| Expires | 2026-12-31 (70d) |
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 23:12:09 shown | 971ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 09:35:33 | 1535ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 20:11:33 | 9564ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 19:44:56 | 2263ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 19:30:10 | 698ms | 2 NS 1 A 1 MX | 🔒 Secure |