undervisninguddannelse.dk is a .dk domain served by 4 nameservers (ns1.mainloop.net, ns2.mainloop.net, ns3.mainloop.net and 1 more). It was registered on 26 February 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.84.240.80 is hosted by Mainloop AB (AS202687) in Sweden. The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 185.84.240.80 | 3600s | www-redirect.mainloop.net | AS202687 | Mainloop AB | 185.84.240.0/24 | 🇸🇪 Sweden | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a03:4bc0:1015::80 | 3600s | www-redirect.mainloop.net | AS202687 | Mainloop AB | 2a03:4bc0:1015:0:0:0:0:0/48 | 🇸🇪 Sweden | — |
| TXT Record |
|---|
| redirectmatch=https://www.karriarguiden.se/ |
| www | 185.84.240.80 2a03:4bc0:1015::80 (AS202687) (address records, no CNAME) |
| www vs bare domain | Same network undervisninguddannelse.dk: 185.84.240.80 2a03:4bc0:1015::80 (AS202687) www.undervisninguddannelse.dk: 185.84.240.80 2a03:4bc0:1015::80 (AS202687) |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 2 CDS, 1 CDNSKEY |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026100801 |
| Primary NS (MNAME) | ns1.mainloop.net |
| Responsible (RNAME) | hostmaster@mainloop.net |
| Refresh | 3600s |
| Retry | 900s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Name SRS AB |
| Registered | 2009-02-26 |
| Expires | 2027-02-28 (134d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 09:11:20 | 448ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-10-08 22:36:29 shown | 687ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-10-01 21:32:12 | 1194ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-30 21:14:58 | 3226ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-25 20:21:01 | 5042ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-24 07:38:56 | 1597ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-17 23:04:13 | 550ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-13 00:22:23 | 5124ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-05 23:59:15 | 911ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-27 22:35:49 | 506ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-20 02:59:13 | 7399ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-13 16:56:15 | 8408ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-06 15:42:29 | 6324ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-23 05:58:20 | 997ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-16 19:16:57 | 8651ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-10 03:57:08 | 5897ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-03 11:59:12 | 8359ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-29 23:56:30 | 621ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-23 16:18:42 | 2095ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-23 06:47:50 | 942ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-19 11:07:10 | 755ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-17 12:07:44 | 818ms | 4 NS 1 A 0 MX | 🔒 Secure |