hjertet.dk is a .dk domain served by 3 nameservers (ns4.hostonline.dk, ns5.hostonline.dk, ns6.hostonline.dk). It was registered on 9 September 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. 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.
| TXT Record |
|---|
| v=spf1 include:_spf.hostonline.dk -all |
| Policy | Record (hjertet.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_spf.hostonline.dk -all |
| Policy | Record (_dmarc.hjertet.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; aspf=r; |
| www CNAME | www.hjf.dk (all on hjf.dk) → 85.159.232.83 (AS43350) |
| www vs bare domain | Only www resolves (all like this) |
| Wildcard | No |
| Denial of existence | NSEC3 · 10 iterations · 8-byte salt · opt-out RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 4/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026101502 |
| Primary NS (MNAME) | ns4.hostonline.dk |
| Responsible (RNAME) | hostmaster@hostonline.dk |
| Refresh | 3600s |
| Retry | 600s |
| Expire | 86400s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | TS COMPUTER ApS |
| Registered | 1998-09-09 |
| Expires | 2027-09-30 (344d) |
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 13:44:55 shown | 510ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-17 12:47:21 | 626ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-15 09:58:50 | 469ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-10 05:56:41 | 720ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-05 12:40:57 | 458ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-30 12:13:38 | 505ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-25 11:24:39 | 425ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-22 08:39:36 | 475ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-17 03:08:54 | 1268ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-14 06:34:42 | 379ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-11 19:22:59 | 442ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-09 02:08:46 | 639ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-01 00:07:45 | 429ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-27 00:10:43 | 339ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-21 09:19:54 | 1940ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-17 23:27:23 | 762ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-12 22:13:31 | 1024ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-10 19:02:35 | 727ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-02 08:08:28 | 686ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-27 15:20:02 | 1506ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-22 10:54:08 | 978ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-17 16:51:43 | 993ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-12 13:03:58 | 754ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-07 03:49:31 | 1322ms | 3 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-03 19:38:48 | 3618ms | 3 NS 0 A 0 MX | 🔒 Secure |