ros-gym.dk is a .dk domain served by 2 nameservers (ns07.sac-it.dk, ns08.sac-it.dk). It was registered on 31 August 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. The zone is DNSSEC-signed and validates, has no 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 |
|---|---|---|---|
| ns07.sac-it.dk | 85.235.243.63 | ns07.sac-it.dk | AS3308 Norlys Telco A/S |
| ns08.sac-it.dk | 128.76.60.63 | ns08.sac-it.dk | AS3292 TDC Holding A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | www.roskilde-gymnasium.dk → 198.202.211.1 |
| 🔶 Autoconfig | www.roskilde-gymnasium.dk → 198.202.211.1 |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves ros-gym.dk: no address www.ros-gym.dk: no address |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.ros-gym.dk | www.roskilde-gymnasium.dk |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026100801 |
| Primary NS (MNAME) | ns07.sac-it.dk |
| Responsible (RNAME) | hostmaster@ros-gym.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | SAC-IT A/S |
| Registered | 2006-08-31 |
| Expires | 2027-08-31 (313d) |
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 |
|---|---|---|---|
| 2026-10-21 16:51:44 shown | 1516ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-15 22:26:50 | 494ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-08 11:02:39 | 520ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-01 08:21:52 | 478ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-24 05:43:59 | 9550ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-24 05:39:50 | 551ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-18 15:04:55 | 648ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-11 12:34:25 | 467ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-07 12:20:02 | 537ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-28 01:13:22 | 362ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-20 12:30:45 | 3662ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-13 16:00:37 | 1145ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-10 10:42:19 | 2692ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-31 14:10:34 | 663ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-24 04:00:48 | 8767ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-16 17:48:07 | 8586ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-09 05:01:22 | 9130ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-04 20:28:36 | 731ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-03 20:04:40 | 1108ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-03 11:02:54 | 340ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-27 03:03:25 | 496ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-18 04:02:37 | 894ms | 2 NS 0 A 0 MX | 🔒 Secure |