ro-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 this 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 CNAME | www.roskilde-gymnasium.dk (all on roskilde-gymnasium.dk) |
| www vs bare domain | Only www resolves (all like this) |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.ro-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 | 2026100101 |
| Primary NS (MNAME) | ns07.sac-it.dk |
| Responsible (RNAME) | hostmaster@ro-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 (310d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-22 06:01:15 | 536ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-15 21:02:29 | 518ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-08 09:43:54 | 569ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-03 20:23:32 shown | 547ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-01 02:08:12 | 661ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-24 16:51:19 | 535ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-18 04:24:42 | 489ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-11 02:30:09 | 2590ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-07 03:31:51 | 524ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-27 11:09:45 | 338ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-21 00:49:13 | 946ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-13 19:49:29 | 1317ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-09 06:05:10 | 2603ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-02 23:42:46 | 766ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-23 04:14:42 | 646ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-17 19:35:52 | 629ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-10 01:08:11 | 2615ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-03 15:14:30 | 358ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-30 21:05:31 | 421ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-24 17:21:20 | 648ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-21 18:36:48 | 3130ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-21 07:17:19 | 1153ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-21 00:09:45 | 945ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 03:07:30 | 1202ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-17 11:40:38 | 1113ms | 2 NS 0 A 0 MX | 🔒 Secure |