sejlersko.dk is a .dk domain served by 5 nameservers (ns1.gigahost.dk, ns2.gigahost.dk, ns3.gigahost.dk and 2 more). It was registered on 4 September 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 217.116.232.212 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by mx1.gigahost.dk, mx2.gigahost.dk and 1 more. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 217.116.232.212 | 3600s | 212.giga-ptr.232.116.217.in-addr.arpa web12.gigahost.dk |
AS47292 | Sentia Denmark A/S | 217.116.224.0/20 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx1.gigahost.dk | 46.183.139.11 | mx1.gigahost.dk | AS47292 Sentia Denmark A/S |
| 10 | 3600s | mx2.gigahost.dk | 46.183.139.12 | mx2.gigahost.dk | AS47292 Sentia Denmark A/S |
| 10 | 3600s | mx3.gigahost.dk | 46.183.139.13 | mx3.gigahost.dk | AS47292 Sentia Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | sejlersko.dk → 217.116.232.212 |
| 🔶 Autoconfig | sejlersko.dk → 217.116.232.212 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 10 | 443 | autodiscover.gigahost.dk |
| www CNAME | sejlersko.dk (all on sejlersko.dk) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.sejlersko.dk | sejlersko.dk |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026062501 |
| Primary NS (MNAME) | ns1.gigahost.dk |
| Responsible (RNAME) | hostmaster@sejlersko.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | GIGAHOST ApS |
| Registered | 2009-09-04 |
| Expires | 2027-09-30 (342d) |
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 |
|---|---|---|---|
| 2026-10-22 18:37:31 | 1369ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-15 04:50:41 | 928ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-08 18:19:44 | 2953ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-01 17:12:34 | 893ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-30 17:08:14 | 946ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-24 07:59:20 | 805ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-20 07:43:00 | 1766ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-14 22:22:58 | 855ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-07 19:03:50 | 1029ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-03 17:00:39 | 1210ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-27 20:06:30 | 886ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-20 09:25:28 | 9843ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-15 02:22:43 | 3341ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-07 11:05:36 | 1580ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-23 05:33:16 | 1082ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-17 10:24:43 | 1225ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-10 21:30:29 | 1175ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-03 13:17:40 | 8401ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-27 14:48:09 shown | 926ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-18 08:15:39 | 1255ms | 5 NS 1 A 3 MX | 🔓 Insecure |