undertegnede.dk is a .dk domain served by 3 nameservers (ns1.dns.services, ns2.dns.services, ns3.dns.services). It was registered on 2 March 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 80.165.136.150 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by mx1.forwardemail.net, mx2.forwardemail.net. 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 |
|---|---|---|---|---|---|---|---|
| 80.165.136.150 | 3600s | 80-165-136-150-dynamic.dk.customer.tdc.net | AS3292 | TDC Holding A/S | 80.160.0.0/13 | 🇩🇰 Denmark | Glamsbjerg |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | undertegnede.dk → 80.165.136.150 |
| 🔶 Autoconfig | undertegnede.dk → 80.165.136.150 |
| TXT Record |
|---|
| forward-email=thomas:th.undertegnede@gmail.com |
| v=spf1 a mx include:spf.forwardemail.net ~all |
| Policy | Record (undertegnede.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a mx include:spf.forwardemail.net ~all |
| www CNAME | undertegnede.dk (all on undertegnede.dk) → 80.165.136.150 (AS3292) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 7/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.undertegnede.dk | undertegnede.dk |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.forwardemail.net | DANE-EE · SPKI · SHA-256 | 5E81DA1AF16DF20B13E667AD6D9C2B65… |
| SMTP _25._tcp.mx1.forwardemail.net | DANE-EE · SPKI · SHA-256 | 321F694EAD3A2E733D857FD7E79D811F… |
| SMTP _25._tcp.mx2.forwardemail.net | DANE-EE · SPKI · SHA-256 | 321F694EAD3A2E733D857FD7E79D811F… |
| SMTP _25._tcp.mx2.forwardemail.net | DANE-EE · SPKI · SHA-256 | 5E81DA1AF16DF20B13E667AD6D9C2B65… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2022072810 |
| Primary NS (MNAME) | ns1.dns.services |
| Responsible (RNAME) | post@dns.services |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 1814400s |
| Minimum (neg-cache TTL) | 7200s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2004-03-02 |
| Expires | 2027-03-31 (161d) |
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 |
|---|---|
| stengren.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-01 08:11:14 shown | 542ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-26 21:48:09 | 691ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-25 19:24:31 | 4188ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-18 00:06:23 | 13451ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-17 23:43:27 | 16943ms | 3 NS 1 A 2 MX | 🔒 Secure |