udfordringen.dk is a .dk domain served by 3 nameservers (ns1.ichtushosting.com, ns2.ichtushosting.com, ns3.ichtushosting.com). It was registered on 25 June 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 88.99.188.202 is hosted by Hetzner Online GmbH (AS24940) in Germany. 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 |
|---|---|---|---|---|---|---|---|
| 88.99.188.202 | 3598s | srv022.web.ichtushosting.com | AS24940 | Hetzner Online GmbH | 88.99.0.0/16 | 🇩🇪 Germany | Nuremberg |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 88.99.188.202 |
| 🔶 Autoconfig | autoconfig.ichtushosting.com → 5.189.174.141 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 1 | 1 | 443 | autoconfig.ichtushosting.com |
| Flags | Tag | Value |
|---|---|---|
| 0 | issue | letsencrypt.org |
| www | 88.99.188.202 2a01:4f8:c0c:4387::1 (AS24940) (address records, no CNAME) |
| www vs bare domain | Same network udfordringen.dk: 88.99.188.202 2a01:4f8:c0c:4387::1 (AS24940) www.udfordringen.dk: 88.99.188.202 2a01:4f8:c0c:4387::1 (AS24940) |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC3 · 0 iterations · no salt · opt-out RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~2048 bit |
| k1 | dkim.mcsv.net | RSA · ~1024 bit below 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.
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026082602 |
| Primary NS (MNAME) | ns1.ichtushosting.com |
| Responsible (RNAME) | hostmaster@udfordringen.dk |
| Refresh | 7200s |
| Retry | 540s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 1997-06-25 |
| Expires | 2027-06-30 (246d) |
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).
| Domain | Registrar |
|---|---|
| hosianna.dk | Punktum dk A/S (direct) |
| julenstartermedjesus.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-25 18:37:56 | 10371ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-20 07:28:31 | 7047ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-16 02:50:55 | 4802ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-12 22:44:43 | 7644ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-10 18:05:19 | 3177ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-05 06:57:58 | 4602ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-03 06:51:49 | 6844ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-30 06:45:07 | 7020ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-27 05:46:03 | 7367ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-25 15:16:01 | 3186ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-24 15:00:45 | 6185ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-16 13:54:39 | 7589ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-09 12:40:43 | 3463ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-04 01:09:12 | 5658ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-26 19:11:48 shown | 11653ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-08-21 04:19:58 | 7486ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-16 20:40:43 | 7061ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-11 17:54:13 | 11091ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-07 01:24:44 | 15567ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-02 17:04:43 | 15654ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-27 15:28:11 | 13259ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-22 07:41:59 | 4107ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-17 19:40:17 | 11430ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-14 00:39:59 | 8938ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-08 18:11:43 | 11242ms | 3 NS 1 A 1 MX | 🔓 Insecure |