tekniskskolesilkeborg.dk is a .dk domain served by 3 nameservers (ns.efif.dk, ns2.efif.dk, ns3.efif.dk). It was registered on 27 July 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 81.95.243.21 is hosted by team.blue Denmark A/S (AS48854) in Denmark. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 81.95.243.21 | 86400s | — | AS48854 | team.blue Denmark A/S | 81.95.240.0/20 | 🇩🇰 Denmark | — |
| TXT Record |
|---|
| Teknisk Skole Silkeborg |
| uvmid=743401 |
| www CNAME | tekniskskolesilkeborg.dk (all on tekniskskolesilkeborg.dk) → 81.95.243.21 (AS48854) |
| www vs bare domain | Same network tekniskskolesilkeborg.dk: 81.95.243.21 (AS48854) www.tekniskskolesilkeborg.dk: 81.95.243.21 (AS48854) |
| 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 | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2013122111 |
| 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 | Punktum dk A/S (direct) |
| Registered | 2011-07-27 |
| Expires | 2027-07-31 (284d) |
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 |
|---|---|---|---|
| 2026-10-19 21:51:51 shown | 759ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-10-16 17:03:51 | 1111ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-10-14 09:27:14 | 919ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-10-08 23:31:06 | 694ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-10-07 23:25:44 | 779ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-10-02 20:05:57 | 1636ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-30 19:52:53 | 481ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-29 07:43:39 | 1575ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-27 07:12:07 | 1702ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-24 06:26:52 | 1592ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-16 01:20:42 | 1749ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-09 08:38:57 | 545ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-30 13:44:07 | 1257ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-27 07:11:50 | 543ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-26 22:29:42 | 669ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-24 14:09:54 | 2111ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-19 06:04:39 | 10227ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-18 05:50:31 | 2640ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-13 17:25:28 | 4597ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-12 14:09:02 | 18356ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-11 03:13:52 | 4531ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-08 09:18:15 | 875ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-03 18:04:32 | 2053ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-26 20:48:32 | 2015ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-24 19:59:36 | 4489ms | 3 NS 1 A 0 MX | 🔒 Secure |