nikolajnikolajsen.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 7 April 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 184.106.128.16 is hosted by Rackspace Hosting (AS19994) in United States. Mail is handled by mail.nikolajnikolajsen.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 |
|---|---|---|---|---|---|---|---|
| 184.106.128.16 | — | 184-106-128-16.static.cloud-ips.com | AS19994 | Rackspace Hosting | 184.106.128.0/17 | 🇺🇸 United States | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | mail.nikolajnikolajsen.dk | 184.106.128.16 | 184-106-128-16.static.cloud-ips.com | AS19994 Rackspace Hosting |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (nikolajnikolajsen.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.nikolajnikolajsen.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject |
| www CNAME | nikolajnikolajsen.dk (all on nikolajnikolajsen.dk) |
| 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: 0/10 · 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 | 2026041301 |
| 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 | 2005-04-07 |
| Expires | 2027-04-30 (188d) |
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 |
|---|---|---|---|
| 2026-10-21 05:57:43 | 681ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-19 02:35:05 | 481ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-13 20:26:16 | 521ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-01 06:39:07 | 489ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 08:00:43 | 722ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-24 07:46:56 | 568ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-08 14:09:37 | 684ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 16:05:10 | 585ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-22 02:31:52 | 2402ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-21 20:11:34 | 1143ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-21 19:26:07 | 1173ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 03:35:25 | 621ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 14:44:25 shown | 999ms | 2 NS 1 A 1 MX | 🔒 Secure |