thermalux.dk is a .dk domain served by 2 nameservers (ns1.mdwx.be, ns2.mdwx.be). It was registered on 14 January 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 5.61.248.73 is hosted by Signet B.V. (AS20857) in The Netherlands. Mail is handled by mail.thermalux.dk, relay.mdwx.be. The zone is not DNSSEC-signed, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 5.61.248.73 | 3600s | web04.mdwx.be | AS20857 | Signet B.V. | 5.61.248.0/21 | 🇳🇱 The Netherlands | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mail.thermalux.dk | 2a01:7860::db:1731:7:1 5.61.248.73 |
web04.mdwx.be web04.mdwx.be |
AS20857 Signet B.V. AS20857 Signet B.V. |
| 20 | 3600s | relay.mdwx.be | 136.144.237.126 2a01:7c8:d008:3e0:5054:ff:fe5d:f765 |
relay.ixlhosting.nl relay.ixlhosting.nl |
AS20857 Signet B.V. AS20857 Signet B.V. |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 5.61.248.73 |
| 🔶 Autoconfig | 5.61.248.73 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a01:7860::db:1731:7:1 | 3600s | web04.mdwx.be | AS20857 | Signet B.V. | 2a01:7860:0:0:0:0:0:0/32 | 🇳🇱 The Netherlands | — |
| TXT Record |
|---|
| v=spf1 include:spf.mdwx.be ~all |
| Policy | Record (thermalux.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:spf.mdwx.be ~all |
| Policy | Record (_dmarc.thermalux.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; sp=none; |
| www | 5.61.248.73 2a01:7860::db:1731:7:1 (AS20857) (address records, no CNAME) |
| www vs bare domain | Same network thermalux.dk: 5.61.248.73 2a01:7860::db:1731:7:1 (AS20857) www.thermalux.dk: 5.61.248.73 2a01:7860::db:1731:7:1 (AS20857) |
| Wildcard | Yes: any name under the zone resolves |
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 | 2024052700 |
| Primary NS (MNAME) | ns1.mdwx.be |
| Responsible (RNAME) | hostmaster@thermalux.dk |
| Refresh | 28800s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 28800s |
| Field | Value |
|---|---|
| Registrar | Realtime Register B.V. |
| Registered | 2021-01-14 |
| Expires | 2027-01-31 (103d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 23:04:51 | 1565ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-26 12:59:26 shown | 1587ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-29 18:15:33 | 3781ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-28 03:00:33 | 3559ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-20 00:16:36 | 1170ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-18 08:22:04 | 8986ms | 2 NS 1 A 2 MX | 🔓 Insecure |