aluheatexchanger.dk is a .dk domain served by 2 nameservers (ns1.kortermann-hosting.dk, ns2.kortermann-hosting.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.189.39.102 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by mail.aluheatexchanger.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 |
|---|---|---|---|
| ns1.kortermann-hosting.dk | 94.231.105.180 | vdom105.net.dk2.zitcom.dk | AS48854 team.blue Denmark A/S |
| ns2.kortermann-hosting.dk | 94.231.105.146 | — | AS48854 team.blue Denmark A/S |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 94.189.39.102 | 3600s | — | AS3292 | TDC Holding A/S | 94.189.0.0/17 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mail.aluheatexchanger.dk | — | — | — |
| TXT Record |
|---|
| v=spf1 +a +mx include:spf.securesmtp.dk -all |
| Policy | Record (aluheatexchanger.dk) |
|---|---|
| -all (hard fail) | v=spf1 +a +mx include:spf.securesmtp.dk -all |
| www CNAME | aluheatexchanger.dk (all on aluheatexchanger.dk) → 94.189.39.102 (AS3292) |
| www vs bare domain | Same network |
| Wildcard | No |
DNS lookups: 3/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 78357 |
| Primary NS (MNAME) | ns1.kortermann-hosting.dk |
| Responsible (RNAME) | hostmaster@kortermann-hosting.dk |
| Refresh | 14400s |
| Retry | 7200s |
| Expire | 2419200s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-01 00:50:44 shown | 4314ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-04 03:28:59 | 4711ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-02 16:03:48 | 13799ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-23 13:51:08 | 2758ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 12:44:40 | 655ms | 2 NS 1 A 1 MX | 🔓 Insecure |