tdcsikkerhed.dk is a .dk domain served by 2 nameservers (dns1.netdesign.dk, dns2.netdesign.dk). It was registered on 1 July 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. The zone is DNSSEC-signed but currently fails validation, 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 |
|---|---|---|---|
| dns1.netdesign.dk | 91.199.190.51 | dns1.netdesign.dk | AS3292 TDC Holding A/S |
| dns2.netdesign.dk | 91.199.190.52 | dns2.netdesign.dk | AS3292 TDC Holding A/S |
| www CNAME | tdcsikkerhed.dk (all on tdcsikkerhed.dk) |
| www vs bare domain | Same network tdcsikkerhed.dk: 18.192.246.145 18.193.144.171 3.125.131.179 (AS16509) www.tdcsikkerhed.dk: 18.192.246.145 18.193.144.171 3.125.131.179 (AS16509) |
| Wildcard | No |
| Denial of existence | NSEC3 · 10 iterations · 3-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Check | Result |
|---|---|
| Validation Status | ⚠️ Bogus |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✓ Found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: failure |
| Field | Value |
|---|---|
| Registrar | Eurodns S.A |
| Registered | 2002-07-01 |
| Expires | 2026-09-30 (expired) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-23 18:57:41 | 1424ms | 2 NS 3 A 2 MX | ❓ Unknown |
| 2026-10-22 00:33:10 | 1395ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-10-20 18:45:40 | 1666ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-10-19 12:26:30 | 1300ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-10-18 11:29:50 | 828ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-10-17 10:33:44 | 2456ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-10-16 09:25:11 | 2236ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-10-15 07:01:38 | 1060ms | 2 NS 3 A 2 MX | ❓ Unknown |
| 2026-10-14 06:26:46 | 1150ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-10-13 01:05:12 | 1538ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-10-11 23:47:51 | 1077ms | 2 NS 3 A 2 MX | ❓ Unknown |
| 2026-10-10 23:12:13 | 1503ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-10-09 22:06:09 | 1117ms | 2 NS 3 A 2 MX | ❓ Unknown |
| 2026-10-08 11:38:14 | 741ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-10-07 11:20:18 | 2308ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-10-05 19:20:51 | 1125ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-10-04 19:15:00 | 837ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-10-03 19:09:17 | 1422ms | 2 NS 3 A 2 MX | ❓ Unknown |
| 2026-10-03 18:32:49 shown | 830ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-10-02 18:30:50 | 969ms | 2 NS 3 A 2 MX | ❓ Unknown |
| 2026-10-01 18:28:53 | 845ms | 2 NS 3 A 2 MX | ❓ Unknown |
| 2026-09-30 18:21:12 | 2044ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-09-29 18:02:49 | 1162ms | 2 NS 3 A 2 MX | ❓ Unknown |
| 2026-09-29 08:28:46 | 802ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-09-28 08:13:35 | 841ms | 2 NS 0 A 0 MX | ⚠️ Bogus |