astrupfjernvarme.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 19 February 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 13.107.246.53 is hosted by Microsoft Corporation (AS8075) in United States. Mail is handled by web6.netplads.dk. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. 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 |
|---|---|---|---|---|---|---|---|
| 13.107.246.53 | 3600s | — | AS8075 | Microsoft Corporation | 13.107.240.0/21 | 🇺🇸 United States | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | web6.netplads.dk | 91.221.196.224 | — | AS51468 One.com A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 91.221.196.224 |
| 🔶 Autoconfig | 91.221.196.224 |
| TXT Record |
|---|
| +oCmtNuu7RYB9GJxNTul1TOIBLDHA0k8aHekPP6IL48 |
| CcaBKNfGmnDTT0JmWLEJrWNgLbvxcB7cB+2TGyz9phA |
| qJiqTP8FIrhmO4igTSTo7+I1x5+GIwQOeN09RlCkwXM |
| sPXP2e6RHt5Nt0UqMXcwhaM8qmUc/fFcVnTTA2kkaCY |
| www | 13.107.246.53 (AS8075) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC3 · 1 iteration · 1-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 | 2026092901 |
| Primary NS (MNAME) | ns1.curanet.dk |
| Responsible (RNAME) | hostmaster@curanet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2019-02-19 |
| Expires | 2027-02-28 (128d) |
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 |
|---|---|---|---|
| 2026-10-03 15:24:31 | 419ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-01 00:11:46 | 488ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 04:10:40 shown | 848ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-28 03:38:49 | 4320ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-17 03:08:10 | 455ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-17 00:23:43 | 638ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-10 19:04:51 | 1557ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-24 23:04:57 | 469ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-11 05:33:02 | 2686ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-02 00:05:10 | 832ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 13:47:33 | 598ms | 2 NS 1 A 1 MX | 🔒 Secure |