tenggren.dk is a .dk domain served by 2 nameservers (ns1auth.krn.dk, ns2auth.krn.dk). It was registered on 1 February 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by fjotte.krn.dk. 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 |
|---|---|---|---|
| ns1auth.krn.dk | 194.255.84.43 | — | AS3308 Norlys Telco A/S |
| ns2auth.krn.dk | 87.104.57.7 | 87.104.57.7.static.fibianet.dk | AS44869 FIBIA P/S |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 3600s | fjotte.krn.dk | 194.255.84.23 | — | AS3308 Norlys Telco A/S |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves tenggren.dk: no address www.tenggren.dk: no address |
| Wildcard | No |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2014011000 |
| Primary NS (MNAME) | ns1auth.krn.dk |
| Responsible (RNAME) | hostmaster@tenggren.dk |
| Refresh | 3600s |
| Retry | 300s |
| Expire | 3600000s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2001-02-01 |
| Expires | 2027-03-31 (165d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 23:53:04 shown | 7406ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-08-28 10:07:32 | 10209ms | 4 NS 0 A 1 MX | 🔓 Insecure |
| 2026-08-26 10:33:38 | 1665ms | 4 NS 0 A 1 MX | 🔓 Insecure |
| 2026-07-03 00:34:15 | 2362ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-27 11:37:24 | 4295ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-21 09:30:05 | 489ms | 4 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-17 14:04:56 | 3617ms | 4 NS 0 A 1 MX | 🔓 Insecure |