sejlerland.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 5 October 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.191.156.12 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx.simply.com. The zone is DNSSEC-signed and validates, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 93.191.156.12 | 3600s | nt29.unoeuro.com | AS48854 | team.blue Denmark A/S | 93.191.152.0/21 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx.simply.com | 94.231.106.20 | mx.simply.com | AS48854 team.blue Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 93.191.156.12 |
| 🔶 Autoconfig | maildiscover.simply.com → 94.231.108.222 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 10 | 443 | maildiscover.simply.com |
| TXT Record |
|---|
| v=spf1 include:spf.simply.com ~all |
| Policy | Record (sejlerland.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:spf.simply.com ~all |
| Policy | Record (_dmarc.sejlerland.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com; |
| www CNAME | sejlerland.dk (all on sejlerland.dk) → 2.57.91.91 (AS47583) |
| www vs bare domain | Same network |
| Wildcard | No |
DNS lookups: 1/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | A9D603AF4D7ED6B9246B4B68500CD6F2… |
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | 97A3BA009F39C761BFFB6574340E8138… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2025042300 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Realtime Register B.V. |
| Registered | 2026-10-05 |
| Expires | 2027-10-04 (344d) |
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).
Showing 100 of 256.
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-22 08:27:30 | 1261ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-10-17 01:27:49 | 1544ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-10-08 10:40:09 | 1635ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-10-07 10:32:29 | 688ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-10-02 15:20:38 | 290ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-01 15:16:38 | 245ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-30 15:07:35 | 776ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-29 22:15:20 | 240ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-28 22:08:04 | 390ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-27 21:42:15 | 210ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-26 21:16:36 | 238ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-25 20:52:05 | 257ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-24 20:35:46 | 233ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-23 18:41:31 | 253ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-21 15:18:14 | 204ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-14 13:16:35 | 232ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-13 10:25:44 | 204ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-06 09:11:06 | 704ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-26 04:40:15 shown | 725ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-18 06:45:25 | 768ms | 4 NS 1 A 1 MX | 🔒 Secure |