træfiberisolering.dk is a .dk domain served by 2 nameservers (archer.ns.cloudflare.com, gloria.ns.cloudflare.com). It was registered on 29 July 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.57.230 is hosted by Cloudflare, Inc. (AS13335). The zone is of unknown DNSSEC status, 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 |
|---|---|---|---|---|---|---|---|
| 104.21.57.230 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.193.122 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 104.21.57.230 |
| 🔶 Autoconfig | 104.21.57.230 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3035::6815:39e6 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:c17a | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.57.230,172.67.193.122 ech=AEX+DQBBkwAgACDDIeiBX6v0OhK83DhyvzEeVT0rELciZUrk/X+UacZ7YwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:39e6,2606:4700:3037::ac43:c17a |
| www | 104.21.57.230 172.67.193.122 2606:4700:3035::6815:39e6 2606:4700:3037::ac43:c17a (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network træfiberisolering.dk: 104.21.57.230 172.67.193.122 2606:4700:3035::6815:39e6 2606:4700:3037::ac43:c17a (AS13335) www.træfiberisolering.dk: 104.21.57.230 172.67.193.122 2606:4700:3035::6815:39e6 2606:4700:3037::ac43:c17a (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
| Check | Result |
|---|---|
| Validation Status | ❓ Unknown |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxdomain |
| Field | Value |
|---|---|
| Serial | 2411944944 |
| Primary NS (MNAME) | archer.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 | 2024-07-29 |
| Expires | 2027-07-28 (276d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-24 13:23:06 | 527ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-23 02:42:08 | 472ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-09 20:40:45 | 887ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-30 06:12:50 | 490ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-28 04:26:28 | 9457ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-18 19:43:14 | 828ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-12 02:57:38 shown | 2326ms | 2 NS 2 A 0 MX | ❓ Unknown |
| 2026-07-19 05:49:04 | 1827ms | 2 NS 2 A 0 MX | ❓ Unknown |
| 2026-06-25 03:28:40 | 919ms | 2 NS 2 A 0 MX | ❓ Unknown |
| 2026-06-23 16:30:21 | 830ms | 2 NS 2 A 0 MX | ❓ Unknown |
| 2026-06-17 13:18:36 | 639ms | 2 NS 2 A 0 MX | 🔒 Secure |