træn-smart.dk is a .dk domain served by 2 nameservers (cortney.ns.cloudflare.com, eric.ns.cloudflare.com). It 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 our latest 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+DQBBtAAgACDZ3hi4tloSiR+j/1WrmFsO2EfpgXIxqA121YKsOPHhXAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= 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 |
| 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 | 2414271990 |
| Primary NS (MNAME) | cortney.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-25 06:54:05 shown | 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 | 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 |