oputrainee.dk is a .dk domain served by 3 nameservers (ns.efif.dk, ns2.efif.dk, ns3.efif.dk). It was registered on 16 June 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 178.251.4.118 is hosted by team.blue Denmark A/S (AS48854) in Denmark. The zone is not DNSSEC-signed, 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 |
|---|---|---|---|
| ns.efif.dk | 195.254.168.23 | ns.efif.dk | AS51073 Aarhus Business College |
| ns2.efif.dk | 195.254.168.12 | ns2.efif.dk | AS51073 Aarhus Business College |
| ns3.efif.dk | 20.23.170.35 | — | AS8075 Microsoft Corporation |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 178.251.4.118 | 3600s | vm0845.enterprisecloud.nu | AS48854 | team.blue Denmark A/S | 178.251.0.0/21 | 🇩🇰 Denmark | — |
| TXT Record |
|---|
| College360 |
| www CNAME | oputrainee.dk (all on oputrainee.dk) → 178.251.4.118 (AS48854) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 50 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2021030927 |
| Primary NS (MNAME) | ns.efif.dk |
| Responsible (RNAME) | dns-zc@efif.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 2419200s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | ONE.COM A/S |
| Registered | 2022-06-16 |
| Expires | 2027-06-15 (241d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-02 08:51:28 shown | 635ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-10-01 08:50:12 | 763ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-09-30 16:08:09 | 1832ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-09-26 15:23:15 | 1531ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-09-24 14:58:36 | 1635ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-09-23 14:29:48 | 1725ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-09-13 08:06:53 | 7525ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-09-04 01:31:17 | 408ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-08-28 02:25:22 | 556ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-08-28 00:58:47 | 557ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-08-24 11:08:30 | 710ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-08-22 06:53:17 | 9743ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-08-16 22:26:52 | 3338ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-08-10 06:56:11 | 4351ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-08-06 01:43:05 | 614ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-08-03 04:45:43 | 13476ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-07-31 08:49:58 | 1956ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-07-22 19:28:37 | 18120ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-07-17 10:24:30 | 3534ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-07-14 05:03:27 | 8784ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-07-05 21:27:32 | 1206ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-07-01 06:07:00 | 612ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-26 06:15:57 | 688ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-21 17:33:22 | 799ms | 3 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-18 05:52:48 | 437ms | 3 NS 1 A 0 MX | 🔓 Insecure |