sailcenter.dk is a .dk domain served by 2 nameservers (ns01.hostnet.nl, ns02.hostnet.nl). It was registered on 19 January 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 91.184.0.200 is hosted by One.com A/S (AS51468) in Denmark. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 91.184.0.200 | 14400s | balancing.hostnet.nl | AS51468 | One.com A/S | 91.184.0.0/19 | 🇩🇰 Denmark | Copenhagen |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 91.184.0.200 |
| 🔶 Autoconfig | 91.184.0.200 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2268:1:0:f816:3eff:fe7b:63c6 | 14400s | — | AS197902 | Hostnet B.V. | 2a02:2268:0:0:0:0:0:0/32 | 🇳🇱 The Netherlands | — |
| TXT Record |
|---|
| v=spf1 include:_spf.hostnet.nl -all |
| Policy | Record (sailcenter.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_spf.hostnet.nl -all |
| Policy | Record (_dmarc.sailcenter.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject |
| www CNAME | sailcenter.dk (all on sailcenter.dk) |
| www vs bare domain | Same network sailcenter.dk: 91.184.0.200 2a02:2268:1:0:f816:3eff:fe7b:63c6 (AS51468 AS197902) www.sailcenter.dk: 91.184.0.200 2a02:2268:1:0:f816:3eff:fe7b:63c6 (AS51468 AS197902) |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 2/10 · policy: -all
No problems found| 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 | 2026072001 |
| Primary NS (MNAME) | ns01.hostnet.nl |
| Responsible (RNAME) | hostmaster@hostnet.nl |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2015-01-19 |
| Expires | 2027-01-31 (98d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 23:42:36 shown | 4545ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-09-23 08:50:06 | 2493ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-08-27 09:32:31 | 687ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-07-21 07:47:42 | 580ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-25 15:05:28 | 572ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-24 14:45:46 | 1728ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-23 20:55:28 | 462ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-22 05:26:41 | 360ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-17 15:10:00 | 454ms | 2 NS 1 A 0 MX | ❓ Unknown |