rg-afterschool.dk is a .dk domain served by 2 nameservers (ns07.sac-it.dk, ns08.sac-it.dk). It was registered on 6 October 2010 (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 rg-afterschool.dk: no address (all like this)www.rg-afterschool.dk: 198.202.211.1 2620:cb:2000::1 (AS13335 AS209242) |
| 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.rg-afterschool.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 | 2026092401 |
| Primary NS (MNAME) | ns07.sac-it.dk |
| Responsible (RNAME) | hostmaster@rg-afterschool.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | SAC-IT A/S |
| Registered | 2010-10-06 |
| Expires | 2026-10-31 (9d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 02:40:38 | 758ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-08 14:51:20 | 4763ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-01 07:39:50 | 1032ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-30 07:24:17 | 549ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-24 21:29:48 shown | 837ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-20 04:21:29 | 849ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-15 10:37:16 | 1069ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-03 02:08:39 | 727ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-27 02:42:39 | 844ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-20 10:55:43 | 4300ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-14 05:51:25 | 817ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-08 05:23:57 | 1062ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-31 00:27:23 | 8442ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-23 21:35:44 | 834ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-17 23:24:10 | 772ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-12 14:00:16 | 702ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-03 02:48:17 | 608ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-26 05:07:41 | 648ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-21 11:02:22 | 1180ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-21 05:38:30 | 1172ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-18 06:56:18 | 757ms | 2 NS 0 A 0 MX | 🔒 Secure |