tdkudvikling.dk is a .dk domain served by 2 nameservers (ns1auth.tdu.dk, ns2auth.tdu.dk). It was registered on 12 February 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by allman.tdu.dk, mail.tdu.dk. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1auth.tdu.dk | 80.63.62.13 | ns1auth.tdu.dk | AS3292 TDC Holding A/S |
| ns2auth.tdu.dk | 80.63.62.22 | — | AS3292 TDC Holding A/S |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 5 | 3600s | allman.tdu.dk | 80.63.62.8 | — | AS3292 TDC Holding A/S |
| 5 | 3600s | mail.tdu.dk | — | — | — |
| TXT Record |
|---|
| DNS admin: Kristen Nielsen, Teledanmark udvikling, krn@tdu.dk, tlf 66 66630735 - 40 466221 |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves tdkudvikling.dk: no address www.tdkudvikling.dk: no address |
| Wildcard | No |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2015030300 |
| Primary NS (MNAME) | ns1auth.tdu.dk |
| Responsible (RNAME) | hostmaster@tdkudvikling.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Eurodns S.A |
| Registered | 1997-02-12 |
| Expires | 2027-03-31 (163d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-18 08:09:20 | 9072ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-10-10 22:09:37 | 11021ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-10-02 09:00:25 | 7848ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-09-30 08:40:44 | 7033ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-08-31 22:59:14 | 6587ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-08-28 09:44:15 | 8967ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-08-20 18:37:13 | 6970ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-08-14 02:05:58 | 14739ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-08-12 00:31:17 shown | 15942ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-07-27 02:23:57 | 9382ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-06-21 14:39:17 | 2465ms | 2 NS 0 A 2 MX | 🔓 Insecure |
| 2026-06-18 02:06:10 | 6717ms | 2 NS 0 A 2 MX | 🔓 Insecure |