t3s.dk is a .dk domain served by 2 nameservers (emerie.ns.cloudflare.com, jeff.ns.cloudflare.com). It was registered on 1 July 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.92.109 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.gigahost.dk, mx2.gigahost.dk and 1 more. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.92.109 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.192.20 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mx1.gigahost.dk | 46.183.139.11 | mx1.gigahost.dk | AS47292 Sentia Denmark A/S |
| 10 | 300s | mx2.gigahost.dk | 46.183.139.12 | mx2.gigahost.dk | AS47292 Sentia Denmark A/S |
| 10 | 300s | mx3.gigahost.dk | 46.183.139.13 | mx3.gigahost.dk | AS47292 Sentia Denmark A/S |
| 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=104.21.92.109,172.67.192.20 ech=AEX+DQBBpAAgACDGaLaT4Mn7MYjWFTyplvWVXpfmUdxsne2PUDl6VN/ZYwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:c014,2606:4700:3035::6815:5c6d |
| www | 104.21.92.109 172.67.192.20 2606:4700:3031::ac43:c014 2606:4700:3035::6815:5c6d (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.t3s.dk | b399sT-1fQfuqrpwSYvOrkiQY9IuT62sk4odJpV7qUE |
| TXT | _acme-challenge.t3s.dk | r1FpF4yDuOe4Yh8Ha28zsneNLw7SZxJDECG4cDoTllM |
| 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 | 2417765381 |
| Primary NS (MNAME) | emerie.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Realtime Register B.V. |
| Registered | 2025-07-01 |
| Expires | 2027-06-30 (254d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-18 08:52:24 shown | 1235ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-10-17 07:17:41 | 493ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-13 23:16:06 | 2621ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-28 09:20:15 | 939ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-20 02:22:07 | 9850ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-19 01:48:27 | 1212ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-24 13:39:36 | 1097ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-20 06:15:15 | 788ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-17 12:07:24 | 906ms | 2 NS 2 A 3 MX | 🔓 Insecure |