marselis-gym.dk is a .dk domain served by 2 nameservers (ns3.supportcenter.dk, ns4.supportcenter.dk). It was registered on 8 June 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by ., slet. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns3.supportcenter.dk | 87.54.32.150 | — | AS3292 TDC Holding A/S |
| ns4.supportcenter.dk | 2.106.7.200 | ns4.supportcenter.dk | AS3292 TDC Holding A/S |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (marselis-gym.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.marselis-gym.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject;rua=mailto:dmarc@via.dk; ruf=mailto:dmarc@via.dk |
| www CNAME | www.marselisborg-gym.dk (all on marselisborg-gym.dk) → 185.21.41.142 (AS48854) |
| www vs bare domain | Only www resolves (all like this) |
| Wildcard | No |
| Denial of existence | NSEC3 · 50 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | Revoked (empty key) |
| dkim | — | Revoked (empty key) |
| k1 | — | Revoked (empty key) |
| — | Revoked (empty key) | |
| s1 | — | Revoked (empty key) |
| s2 | — | Revoked (empty key) |
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: 0/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 697 |
| Primary NS (MNAME) | ns3.supportcenter.dk |
| Responsible (RNAME) | hostmaster@supportcenter.dk |
| Refresh | 900s |
| Retry | 600s |
| Expire | 86400s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2010-06-08 |
| Expires | 2027-06-30 (255d) |
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 |
|---|---|---|---|
| 2026-10-13 00:38:57 shown | 1067ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-10-11 23:37:03 | 372ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-10-08 13:07:58 | 441ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-10-08 05:37:41 | 358ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-10-06 20:46:59 | 331ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-10-04 17:02:47 | 491ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-30 16:40:51 | 531ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-25 15:42:35 | 501ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-20 14:17:02 | 823ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-06 20:53:51 | 883ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-28 03:18:38 | 393ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-27 03:01:18 | 522ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-24 16:57:24 | 695ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-21 21:35:58 | 3738ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-16 04:20:55 | 546ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-09 23:10:40 | 833ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-06 14:29:18 | 480ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-07-30 08:24:00 | 4574ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-07-23 12:14:52 | 478ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-07-20 13:46:22 | 525ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-07-18 04:46:50 | 1025ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-07-13 08:38:17 | 2978ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-07-07 01:50:22 | 1101ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-07-04 18:20:37 | 4652ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-07-03 09:36:45 | 854ms | 2 NS 0 A 2 MX | 🔒 Secure |