roskildegymnasium.dk is a .dk domain served by 2 nameservers (ns07.sac-it.dk, ns08.sac-it.dk). It was registered on 22 August 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 89.233.19.192 is hosted by Norlys Telco A/S (AS3308) in Denmark. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. 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 |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 89.233.19.192 | 3132s | 192.0-254.19.233.89.in-addr.arpa | AS3308 | Norlys Telco A/S | 89.233.0.0/18 | 🇩🇰 Denmark | Copenhagen |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | www.roskilde-gymnasium.dk → 198.202.211.1 |
| 🔶 Autoconfig | www.roskilde-gymnasium.dk → 198.202.211.1 |
| TXT Record |
|---|
| google-site-verification=61j6d7IELXDcnKcpFrsO-Yf67W8smAJDbknAcOF2d9c |
| MS=AACE08A38B4A1F06FB4C115B022819B8720B77D3 |
| MS=ms23214218 |
| www | 89.233.19.192 (AS3308) (address records, no CNAME) |
| www vs bare domain | Same network |
| 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.roskildegymnasium.dk | www.roskilde-gymnasium.dk |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026081301 |
| Primary NS (MNAME) | ns07.sac-it.dk |
| Responsible (RNAME) | hostmaster@roskildegymnasium.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2005-08-22 |
| Expires | 2027-08-31 (307d) |
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 |
|---|---|---|---|
| 2026-10-23 14:41:39 | 698ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-10-22 08:01:47 | 675ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-10-15 23:23:08 | 1837ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-10-08 07:06:45 | 1814ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-10-02 00:49:30 | 578ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-09-24 23:26:04 | 2523ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-09-20 11:50:59 | 1264ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-09-11 13:02:49 | 1172ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-09-07 20:09:19 | 1276ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-08-27 20:30:35 | 870ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-08-20 04:54:19 | 3886ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-08-13 18:57:59 shown | 1396ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-08-07 06:04:36 | 18146ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-08-04 21:54:37 | 1519ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-07-24 01:56:47 | 2094ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-07-17 06:58:31 | 1431ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-07-09 19:07:42 | 9910ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-07-03 14:52:12 | 915ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-06-30 16:19:04 | 948ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-06-28 16:08:19 | 2315ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-06-25 22:56:44 | 900ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-06-24 17:51:54 | 846ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-21 21:31:45 | 1996ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-06-17 23:30:12 | 1325ms | 2 NS 1 A 5 MX | 🔒 Secure |