helsingorbibliotek.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 2 September 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.47.247.18 is hosted by One.com A/S (AS51468). Mail is handled by .. The zone is DNSSEC-signed and validates, has no 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 |
|---|---|---|---|---|---|---|---|
| 195.47.247.18 | 3600s | one.com.webforward.g1i.one | AS51468 | One.com A/S | 195.47.247.0/24 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| www | 195.47.247.18 (AS51468) (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 |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026070607 |
| 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 | 2003-09-02 |
| Expires | 2027-09-30 (339d) |
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 |
|---|---|---|---|
| 2026-10-13 07:38:32 | 945ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 15:57:53 | 547ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-29 23:02:38 | 417ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-18 04:03:10 | 455ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-07 05:45:48 | 701ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-28 06:06:10 | 476ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-12 13:49:27 | 2318ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-19 03:17:42 | 1148ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-14 07:30:31 | 720ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-07 01:11:49 shown | 676ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-21 15:06:28 | 478ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-20 02:20:10 | 538ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 11:18:52 | 475ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-17 11:13:33 | 495ms | 2 NS 1 A 0 MX | 🔒 Secure |