roerteknik.dk is a .dk domain served by 2 nameservers (a.portsdns.se, b.portsdns.net). It was registered on 6 November 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 87.51.6.240 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by mx.scan.uni2.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 |
|---|---|---|---|---|---|---|---|
| 87.51.6.240 | 2160s | — | AS3292 | TDC Holding A/S | 87.48.0.0/13 | 🇩🇰 Denmark | Aarhus |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 21600s | mx.scan.uni2.dk | — | — | — |
| www CNAME | roerteknik.dk (all on roerteknik.dk) → 87.51.6.240 (AS3292) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026092800 |
| Primary NS (MNAME) | a.portsdns.se |
| Responsible (RNAME) | registry@ports.net |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 28800s |
| Field | Value |
|---|---|
| Registrar | Abion AB |
| Registered | 2000-11-06 |
| Expires | 2026-12-31 (73d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-29 08:40:20 shown | 1772ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-28 07:22:26 | 2534ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-27 12:27:05 | 785ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-25 12:01:25 | 1871ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-30 06:34:32 | 1262ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-28 01:17:41 | 1696ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 01:04:02 | 3186ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 08:37:00 | 1585ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-04 13:28:40 | 13523ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-29 08:18:13 | 9547ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-26 22:49:15 | 988ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-02 17:51:22 | 1458ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-27 17:20:27 | 948ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-18 08:20:12 | 2425ms | 2 NS 1 A 1 MX | 🔒 Secure |