sejlsportskole.dk is a .dk domain served by 2 nameservers (ns07.sac-it.dk, ns08.sac-it.dk). It was registered on 15 August 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. 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 |
|---|---|---|---|
| ns07.sac-it.dk | 85.235.243.63 | ns07.sac-it.dk | AS3308 Norlys Telco A/S |
| ns08.sac-it.dk | 128.76.60.63 | ns08.sac-it.dk | AS3292 TDC Holding A/S |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves sejlsportskole.dk: no address www.sejlsportskole.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 | 2026082001 |
| Primary NS (MNAME) | ns07.sac-it.dk |
| Responsible (RNAME) | hostmaster@sejlsportskole.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2002-08-15 |
| Expires | 2027-09-30 (340d) |
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 |
|---|---|---|---|
| 2026-10-24 10:11:43 | 329ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-10-23 07:05:42 | 463ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-10-16 02:54:16 | 377ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-10-08 02:15:10 | 1664ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-10-01 23:51:43 | 682ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-09-25 22:28:15 | 466ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-09-24 22:17:12 | 462ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-09-17 02:01:26 | 521ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-09-08 14:55:14 | 412ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-09-08 00:14:02 | 658ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-08-27 21:09:13 | 421ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-08-26 19:33:03 | 647ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-08-20 06:43:29 shown | 565ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-08-13 23:27:24 | 496ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-08-10 04:55:22 | 580ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-07-30 20:57:26 | 610ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-07-23 02:15:55 | 506ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-07-17 07:28:14 | 2391ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-07-09 04:17:59 | 543ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-07-02 18:10:10 | 9341ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-25 14:30:58 | 365ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-21 11:52:17 | 354ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-19 01:29:12 | 2426ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-17 23:12:25 | 551ms | 2 NS 0 A 0 MX | 🔓 Insecure |