gustavhansen.dk is a .dk domain served by 2 nameservers (ns1.dataspecialisten.dk, ns2.dataspecialisten.dk). It was registered on 12 February 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. On 22 October 2026 we saw it transfer from CURANET A/S to 1API GmbH. Its website address 162.159.134.42 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by gustavhansen-dk.mail.protection.outlook.com. 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 |
|---|---|---|---|---|---|---|---|
| 162.159.134.42 | 3600s | — | AS13335 | Cloudflare, Inc. | 162.159.128.0/19 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.97.176.40 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| v=spf1 ip4:195.201.240.150 include:spf.azehosting.net +a +mx +include:spf.resellerhotel.dk +include:spf.protection.outlook.com -all |
| Policy | Record (gustavhansen.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:195.201.240.150 include:spf.azehosting.net +a +mx +include:spf.resellerhotel.dk +include:spf.protection.outlook.com -all |
| www CNAME | gustavhansen.dk (all on gustavhansen.dk) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 7/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.gustavhansen.dk | gustavhansen.dk.kinstavalidation.app |
| 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 | 2026070803 |
| Primary NS (MNAME) | ns1.dataspecialisten.dk |
| Responsible (RNAME) | hosting@dataspecialisten.dk |
| Refresh | 3600s |
| Retry | 1800s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | 1API GmbH |
| Registered | 2020-02-12 |
| Expires | 2027-02-28 (127d) |
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 16:07:17 | 696ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-30 17:36:40 | 587ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 16:17:16 | 875ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-25 10:37:44 | 1476ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-20 22:58:52 | 1930ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-15 14:14:35 | 2119ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-08 13:48:25 shown | 32880ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-07 01:26:52 | 1205ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-05 20:45:37 | 2746ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-04 14:17:53 | 5572ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-03 13:56:19 | 4044ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-30 12:06:16 | 1277ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-30 04:18:10 | 1118ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-29 05:49:28 | 1005ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-27 09:52:41 | 976ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-26 12:27:11 | 1556ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 10:12:34 | 3323ms | 2 NS 1 A 1 MX | 🔓 Insecure |