postmadsen.dk is a .dk domain served by 5 nameservers (ns1.gigahost.dk, ns2.gigahost.dk, ns3.gigahost.dk and 2 more). It was registered on 8 October 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.183.138.100 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by mx1.gigahost.dk, mx2.gigahost.dk and 1 more. The zone is not DNSSEC-signed, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 46.183.138.100 | 3600s | — | AS47292 | Sentia Denmark A/S | 46.183.138.0/23 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx1.gigahost.dk | 46.183.139.11 | mx1.gigahost.dk | AS47292 Sentia Denmark A/S |
| 10 | 3600s | mx2.gigahost.dk | 46.183.139.12 | mx2.gigahost.dk | AS47292 Sentia Denmark A/S |
| 10 | 3600s | mx3.gigahost.dk | 46.183.139.13 | mx3.gigahost.dk | AS47292 Sentia Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | postmadsen.dk → 46.183.138.100 |
| 🔶 Autoconfig | postmadsen.dk → 46.183.138.100 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 10 | 443 | autodiscover.gigahost.dk |
| TXT Record |
|---|
| spf2.0/pra |
| v=spf1 mx include:spf.gigahost.dk -all |
| Policy | Record (postmadsen.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx include:spf.gigahost.dk -all |
| Policy | Record (_dmarc.postmadsen.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www CNAME | postmadsen.dk (all on postmadsen.dk) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 2/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.postmadsen.dk | postmadsen.dk |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026102201 |
| Primary NS (MNAME) | ns1.gigahost.dk |
| Responsible (RNAME) | hostmaster@postmadsen.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2007-10-08 |
| Expires | 2027-10-31 (371d) |
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 |
|---|---|
| blokhusudlejning.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-22 13:59:18 shown | 1710ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-16 04:28:37 | 985ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-08 17:12:31 | 2350ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-01 15:31:11 | 1274ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-24 14:19:18 | 689ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-18 21:23:20 | 905ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-12 20:59:56 | 1756ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-03 14:44:33 | 2357ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-27 15:11:08 | 994ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-27 11:27:26 | 671ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-26 11:20:47 | 858ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-20 16:24:59 | 921ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-14 05:50:17 | 2694ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-07 02:08:07 | 1178ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-04 11:32:46 | 2324ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-24 03:10:46 | 1004ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-17 00:20:02 | 9968ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-09 04:15:37 | 1748ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-03 11:58:09 | 2037ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-27 00:55:44 | 930ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-21 05:19:53 | 459ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-18 06:31:23 | 772ms | 5 NS 1 A 3 MX | 🔓 Insecure |