dns4.dk is a .dk domain served by 5 nameservers (dns1.dk, dns2.dk, dns3.dk and 2 more). It was registered on 3 December 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 5.223.66.142 is hosted by Hetzner Online GmbH (AS215859) in Singapore. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 5.223.66.142 | 3600s | dns4.dk | AS215859 | Hetzner Online GmbH | 5.223.0.0/16 | 🇸🇬 Singapore | Singapore |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a01:4ff:2f0:31b6::1 | 3600s | dns4.dk | AS215859 | Hetzner Online GmbH | 2a01:4ff:200::/40 | 🇸🇬 Singapore | Singapore |
| www | NXDOMAIN |
| www vs bare domain | www does not resolve (all like this) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt · opt-out RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Key type | Algorithm | Public key |
|---|---|---|
| KSK | ECDSA P-256/SHA-256 | MSt1bS1WkzNwlIfXEIurAouSpc6g7EQAZD1gm+x1… |
| ZSK | ECDSA P-256/SHA-256 | BJUU8QJfcCeMH6us2vTcfcc9Hw45y6uARSwlOIw/… |
| Field | Value |
|---|---|
| Serial | 2026090902 |
| Primary NS (MNAME) | dns1.dk |
| Responsible (RNAME) | support@borndata.dk |
| Refresh | 3600s |
| Retry | 7200s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2012-12-03 |
| Expires | 2028-12-31 (806d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 23:37:20 | 1427ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-07 15:47:27 | 1372ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-04 11:39:16 | 775ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-01 22:41:12 | 839ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-26 21:54:15 | 1161ms | 5 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-23 20:43:23 | 2556ms | 5 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-23 18:18:56 | 763ms | 5 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-19 13:43:28 | 2959ms | 5 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-12 12:06:17 shown | 4611ms | 5 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-05 21:28:22 | 5362ms | 5 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-31 07:37:40 | 1470ms | 5 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-26 11:15:17 | 2290ms | 5 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-20 12:24:39 | 7200ms | 5 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-16 10:29:02 | 2141ms | 5 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-10 20:44:19 | 2963ms | 5 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-06 04:34:45 | 2149ms | 5 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-26 19:00:08 | 3315ms | 5 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-21 05:56:49 | 8945ms | 5 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-16 20:13:06 | 9788ms | 5 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-15 16:53:07 | 1564ms | 5 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-06 12:54:49 | 1760ms | 5 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-01 18:41:05 | 1004ms | 5 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-28 09:17:05 | 1191ms | 5 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-21 17:05:20 | 2472ms | 5 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-17 04:22:56 | 15418ms | 5 NS 1 A 0 MX | 🔒 Secure |