duns.dk is a .dk domain served by 7 nameservers (blue.foundationdns.com, blue.foundationdns.net, blue.foundationdns.org and 4 more). It was registered on 28 February 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by custmx.cscdns.net. The zone is not DNSSEC-signed, 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| blue.foundationdns.com | — | — | — |
| blue.foundationdns.net | — | — | — |
| blue.foundationdns.org | — | — | — |
| dns1.p01.nsone.net | — | — | — |
| dns2.p01.nsone.net | — | — | — |
| dns3.p01.nsone.net | — | — | — |
| dns4.p01.nsone.net | — | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | custmx.cscdns.net | 198.58.121.58 | 198-58-121-58.ip.linodeusercontent.com | AS63949 Akamai Connected Cloud |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves duns.dk: no address www.duns.dk: no address |
| Wildcard | No |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2405940999 |
| Primary NS (MNAME) | blue.foundationdns.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | CSC Digital Brand Service, Inc |
| Registered | 1997-02-28 |
| Expires | 2027-03-31 (161d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 11:26:08 | 624ms | 7 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-28 15:49:34 | 886ms | 7 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-27 15:43:22 | 657ms | 7 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-25 15:23:54 | 714ms | 7 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-24 15:19:43 | 602ms | 7 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-15 17:30:21 | 1608ms | 7 NS 0 A 1 MX | 🔓 Insecure |
| 2026-08-04 03:37:47 | 2158ms | 7 NS 0 A 1 MX | 🔓 Insecure |
| 2026-07-14 04:27:48 | 1335ms | 7 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-21 07:06:31 | 565ms | 7 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-17 05:16:40 | 15536ms | 7 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-17 05:08:17 | 1298ms | 7 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-17 05:04:20 shown | 456ms | 7 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-17 05:01:19 | 563ms | 7 NS 0 A 1 MX | 🔓 Insecure |