træn-smart.dk is a .dk domain served by 2 nameservers (cortney.ns.cloudflare.com, eric.ns.cloudflare.com). It was registered on 22 January 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.28.239 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx01.dandomain.dk. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.28.239 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.147.229 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mx01.dandomain.dk | 212.237.249.50 | mx1.dandomain.dk | AS48854 team.blue Denmark A/S |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3035::6815:1cef | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3035::ac43:93e5 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.28.239,172.67.147.229 ech=AEX+DQBBYQAgACADEJT4t3cE8o7WRVv7AEoRrZV+pi/92mmDHvAINMFVBwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:1cef,2606:4700:3035::ac43:93e5 |
| www | NXDOMAIN |
| www vs bare domain | www does not resolve træn-smart.dk: 104.21.28.239 172.67.147.229 2606:4700:3035::6815:1cef 2606:4700:3035::ac43:93e5 (AS13335) (all like this)www.træn-smart.dk: no address |
| Wildcard | No |
| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.træn-smart.dk | UjGY6NB7xQKIPg9Q9lSHDKS_6Pmx5J9pZa8qLljdGOI |
| TXT | _acme-challenge.træn-smart.dk | ifJUNgOqoRHr__xvhDdJshzuhXh5DZrpcT9BwGC8mK0 |
| 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 | 2412922007 |
| Primary NS (MNAME) | cortney.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 | 2016-01-22 |
| Expires | 2028-01-31 (461d) |
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).
Showing 100 of 325.
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-25 03:35:20 | 487ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-25 06:54:05 | 580ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-09 08:13:22 | 777ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-26 08:25:38 | 685ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-23 21:29:16 shown | 1164ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-11 02:21:13 | 9926ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-30 16:03:48 | 824ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-25 23:53:44 | 3713ms | 2 NS 2 A 1 MX | ❓ Unknown |
| 2026-06-24 02:58:05 | 444ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-18 07:16:45 | 2846ms | 2 NS 2 A 1 MX | 🔒 Secure |