heltborgmuseum.dk is a .dk domain served by 2 nameservers (ns1.designrus.dk, ns2.designrus.dk). It was registered on 9 May 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.4.18.84 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by server1.designrus.dk. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 46.4.18.84 | 3600s | server5.designrus.dk | AS24940 | Hetzner Online GmbH | 46.4.0.0/16 | 🇩🇪 Germany | Falkenstein |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | server1.designrus.dk | 176.9.4.22 2a01:4f8:141:3416::2 |
server1.designrus.dk server1.designrus.dk |
AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | heltborgmuseum.dk → 46.4.18.84 |
| 🔶 Autoconfig | discover.designrus.dk → 49.12.124.182 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a01:4f8:221:3960::2 | 3600s | — | AS24940 | Hetzner Online GmbH | 2a01:4f8:0:0:0:0:0:0/31 | 🇩🇪 Germany | Falkenstein |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 1 | 1 | 443 | discover.designrus.dk |
| TXT Record |
|---|
| v=spf1 mx a include:_spf.designrus.dk ~all |
| Policy | Record (heltborgmuseum.dk) |
|---|---|
| ~all (soft fail) | v=spf1 mx a include:_spf.designrus.dk ~all |
| Policy | Record (_dmarc.heltborgmuseum.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:postmaster@heltborgmuseum.dk |
| Flags | Tag | Value |
|---|---|---|
| 0 | issue | letsencrypt.org |
| www | 46.4.18.84 2a01:4f8:221:3960::2 (AS24940) (address records, no CNAME) |
| www vs bare domain | Same network heltborgmuseum.dk: 46.4.18.84 2a01:4f8:221:3960::2 (AS24940) www.heltborgmuseum.dk: 46.4.18.84 2a01:4f8:221:3960::2 (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 |
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: 3/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.heltborgmuseum.dk | heltborgmuseum.dk |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026081202 |
| Primary NS (MNAME) | ns1.designrus.dk |
| Responsible (RNAME) | admin@designrus.dk |
| Refresh | 1200s |
| Retry | 540s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2001-05-09 |
| Expires | 2027-06-30 (256d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 21:07:05 | 1355ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-07 14:18:31 | 2674ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-02 11:34:54 | 1062ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-30 11:18:41 | 859ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-27 03:52:57 | 1163ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-24 02:55:07 | 2756ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-23 20:35:36 | 918ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-20 13:08:09 | 1339ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-13 12:03:50 | 1783ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-06 05:03:32 | 1732ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-27 20:58:37 | 808ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-26 19:21:25 | 1153ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-22 11:15:47 | 1878ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-18 02:47:07 | 3312ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-12 04:04:05 shown | 1215ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-08 05:04:53 | 1424ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-03 12:28:41 | 1334ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-24 05:26:20 | 10047ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-18 09:40:04 | 1530ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-14 07:06:34 | 9801ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-08 14:25:28 | 1193ms | 2 NS 1 A 1 MX | ❓ Unknown |
| 2026-07-05 19:20:44 | 9856ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-30 05:25:32 | 834ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-26 19:06:39 | 1086ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-24 08:51:49 | 989ms | 2 NS 1 A 1 MX | 🔓 Insecure |