appsiundervisningen.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 17 January 2013 (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 of unknown DNSSEC status, 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 | appsiundervisningen.dk → 217.116.232.212 |
| 🔶 Autoconfig | appsiundervisningen.dk → 217.116.232.212 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 10 | 443 | autodiscover.gigahost.dk |
| www CNAME | appsiundervisningen.dk (all on appsiundervisningen.dk) |
| www vs bare domain | Same network appsiundervisningen.dk: 217.116.232.212 (AS47292) www.appsiundervisningen.dk: 217.116.232.212 (AS47292) |
| Wildcard | Yes: any name under the zone resolves |
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.appsiundervisningen.dk | appsiundervisningen.dk |
| Check | Result |
|---|---|
| Validation Status | ❓ Unknown |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | broken trust chain resolving 'appsiundervisningen.dk/A/IN': 127.0.0.1#53 |
| Field | Value |
|---|---|
| Serial | 2026070901 |
| Primary NS (MNAME) | ns1.gigahost.dk |
| Responsible (RNAME) | hostmaster@appsiundervisningen.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2013-01-17 |
| Expires | 2027-01-31 (106d) |
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 |
|---|---|---|---|
| 2026-10-15 20:22:39 | 2298ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-08 10:02:37 | 1088ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-01 23:59:36 | 1666ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-24 22:25:00 | 933ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-23 21:53:43 | 644ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-17 13:55:56 | 872ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-13 18:13:14 | 1325ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-04 13:02:13 | 949ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-27 07:49:44 | 930ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-20 13:32:41 | 6778ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-14 01:33:14 | 1893ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-06 06:29:58 | 971ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-30 15:33:30 | 1846ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-23 02:04:21 | 9163ms | 5 NS 1 A 3 MX | ❓ Unknown |
| 2026-07-16 13:48:18 | 10040ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-10 17:39:53 shown | 9165ms | 5 NS 1 A 3 MX | ❓ Unknown |
| 2026-07-03 14:42:57 | 2638ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-25 07:11:06 | 1104ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-25 00:55:01 | 2303ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-21 08:09:27 | 1042ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-16 13:37:22 | 763ms | 5 NS 1 A 3 MX | 🔓 Insecure |