9001.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 8 July 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 87.59.139.31 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by 9001.dk. 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 |
|---|---|---|---|---|---|---|---|
| 87.59.139.31 | 43200s | 87-59-139-31-cable.dk.customer.tdc.net | AS3292 | TDC Holding A/S | 87.59.0.0/16 | 🇩🇰 Denmark | Karlslunde |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 43200s | 9001.dk | 87.59.139.31 | 87-59-139-31-cable.dk.customer.tdc.net | AS3292 TDC Holding A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 87.59.139.31 |
| 🔶 Autoconfig | 87.59.139.31 |
| TXT Record |
|---|
| v=spf1 a mx ptr |
| Policy | Record (9001.dk) |
|---|---|
| no all — incomplete SPF | v=spf1 a mx ptr |
| www | 87.59.139.31 (AS3292) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 3/10 · policy: none
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026101301 |
| 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 | 2003-07-08 |
| Expires | 2027-07-31 (284d) |
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).
| Domain | Registrar |
|---|---|
| mirabellehaven.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-14 00:22:12 shown | 849ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 03:28:00 | 521ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-24 14:57:50 | 2478ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-14 21:29:24 | 870ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-28 07:04:08 | 755ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-13 21:32:24 | 2600ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-13 08:21:09 | 8876ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 02:36:56 | 477ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-22 20:46:28 | 646ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 13:15:35 | 919ms | 2 NS 1 A 1 MX | 🔒 Secure |