jcw.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 91.144.192.94 is hosted by Norlys Telco A/S (AS8273) in Denmark. 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 our latest 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 |
|---|---|---|---|---|---|---|---|
| 91.144.192.94 | 43200s | 91-144-192-94.norlyscustomer.net | AS8273 | Norlys Telco A/S | 91.144.192.0/18 | 🇩🇰 Denmark | Randers |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| www | 46.30.211.38 (AS51468) (address records, no CNAME) |
| www vs bare domain | Different networks (all like this) |
| 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 | 2026101101 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 03:07:29 shown | 677ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-12 00:31:20 | 754ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 06:06:42 | 572ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-12 01:31:21 | 664ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-28 13:33:35 | 4608ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-18 04:29:43 | 2843ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-11 20:06:34 | 8468ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-29 20:48:01 | 763ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 11:32:08 | 620ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 07:11:20 | 588ms | 2 NS 1 A 1 MX | ⚠️ Bogus |
| 2026-06-18 04:27:57 | 908ms | 2 NS 1 A 0 MX | 🔒 Secure |