t-a.dk is a .dk domain served by 2 nameservers (arnold.ns.cloudflare.com, isla.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mail.t-a.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 |
|---|---|---|---|---|---|---|---|
| 104.21.56.56 | — | — | AS13335 | — | — | — | — |
| 172.67.178.132 | — | — | AS13335 | — | — | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | mail.t-a.dk | 93.161.40.77 | 93-161-40-77-static.dk.customer.tdc.net | AS3292 TDC Holding A/S |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3035::6815:3838 | — | — | AS13335 | — | — | — | — |
| 2606:4700:3036::ac43:b284 | — | — | AS13335 | — | — | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.56.56,172.67.178.132 ech=AEX+DQBBgwAgACA0KOPNBqTxhLwg5g8zJrhsSmTaWtcJ+w22tMJDD+Q2UwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:3838,2606:4700:3036::ac43:b284 |
| www | 104.21.56.56 172.67.178.132 2606:4700:3031::6815:3838 2606:4700:3035::ac43:b284 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| 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 | 2403768502 |
| Primary NS (MNAME) | arnold.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 09:54:00 | 658ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-27 23:13:30 | 9498ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-23 20:11:55 | 705ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-06 02:20:42 | 1274ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-27 01:55:49 | 670ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-25 10:40:17 | 3010ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-08 10:07:41 | 1415ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-26 03:02:52 | 894ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-20 07:02:51 | 843ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-19 23:06:58 | 667ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 17:41:13 shown | 1528ms | 2 NS 2 A 1 MX | 🔓 Insecure |