hjortknudsen.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 8 March 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 128.77.138.180 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by smtp.hjortknudsen.dk, smtp.backup.hjortknudsen.dk. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. 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 |
|---|---|---|---|---|---|---|---|
| 128.77.138.180 | — | 128-77-138-180-static.dk.customer.tdc.net | AS3292 | TDC Holding A/S | 128.77.128.0/17 | 🇩🇰 Denmark | Copenhagen |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | smtp.hjortknudsen.dk | 128.77.138.178 | mailscan.hjortknudsen.dk | AS3292 TDC Holding A/S |
| 20 | — | smtp.backup.hjortknudsen.dk | 212.112.159.37 | 212-112-159-37.norlyscustomer.net | AS39642 Sinal A/S |
| TXT Record |
|---|
| apple-domain-verification=JCFi4jAwIQaeAYOn |
| MS=ms68227326 |
| v=spf1 mx a ip4:128.77.138.178 ip4:212.112.159.37 a:webmail.hjortknudsen.dk -all |
| Policy | Record (hjortknudsen.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx a ip4:128.77.138.178 ip4:212.112.159.37 a:webmail.hjortknudsen.dk -all |
| Policy | Record (_dmarc.hjortknudsen.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; sp=quarantine; adkim=r; aspf=r; rua=mailto:dmarc@hjortknudsen.dk; ruf=mailto:dmarc@hjortknudsen.dk; rf=afrf; pct=100; ri=86400 |
| www | 128.77.138.180 (AS3292) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 3/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026030301 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 1999-03-08 |
| Expires | 2027-03-31 (157d) |
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 |
|---|---|---|---|
| 2026-10-08 00:27:17 | 514ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-30 08:44:31 | 640ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-30 00:31:04 | 2219ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-24 23:26:30 | 583ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-24 12:18:56 | 786ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-13 00:20:46 | 1380ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-04 06:53:05 | 668ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-31 11:45:41 | 2177ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-27 03:05:04 | 933ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-17 13:01:01 shown | 2182ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-17 12:46:27 | 268ms | 0 NS 0 A 0 MX | ❓ Unknown |