holte-fjernvarme.dk is a .dk domain served by 2 nameservers (aspen.ns.cloudflare.com, dante.ns.cloudflare.com). It was registered on 14 January 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.34.249 is hosted by Cloudflare, Inc. (AS13335). The zone is not DNSSEC-signed, has no 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 |
|---|---|---|---|---|---|---|---|
| 104.21.34.249 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.166.165 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a06:98c1:3120::1 | 300s | — | AS13335 | Cloudflare, Inc. | 2a06:98c1:3120:0:0:0:0:0/46 | — | — |
| 2a06:98c1:3121::1 | 300s | — | AS13335 | Cloudflare, Inc. | 2a06:98c1:3120:0:0:0:0:0/46 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.34.249,172.67.166.165 ech=AEX+DQBBiAAgACDiCwefp2qlCZI1528quffFxIGgo3TJG1z79gXnmyfYGAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:22f9,2606:4700:3035::ac43:a6a5 |
| www | 104.21.34.249 172.67.166.165 2a06:98c1:3120::1 2a06:98c1:3121::1 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network holte-fjernvarme.dk: 104.21.34.249 172.67.166.165 2606:4700:3032::6815:22f9 2606:4700:3035::ac43:a6a5 (AS13335) www.holte-fjernvarme.dk: 104.21.34.249 172.67.166.165 2a06:98c1:3120::1 2a06:98c1:3121::1 (AS13335) |
| Wildcard | No |
| 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 | 2416984565 |
| Primary NS (MNAME) | aspen.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2026-01-14 |
| Expires | 2027-01-13 (77d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-24 01:03:32 | 497ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-22 22:33:17 | 413ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-09 13:47:37 shown | 446ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-07 17:52:38 | 452ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-01 04:31:58 | 701ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-28 09:04:27 | 1188ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-18 17:29:50 | 623ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-12 05:15:01 | 1024ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-07-14 18:24:21 | 1204ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-24 19:46:58 | 1738ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-22 04:28:20 | 1239ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-21 18:27:19 | 924ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 13:06:35 | 1753ms | 2 NS 2 A 0 MX | 🔓 Insecure |