21montering.dk is a .dk domain served by 2 nameservers (udns1.cscdns.net, udns2.cscdns.uk). It was registered on 16 November 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 204.74.99.103 is hosted by Vercara, LLC (AS19905) in United States. Mail is handled by mx01.dandomain.dk. 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 |
|---|---|---|---|
| udns1.cscdns.net | — | — | — |
| udns2.cscdns.uk | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 204.74.99.103 | — | — | AS19905 | Vercara, LLC | 204.74.99.0/24 | 🇺🇸 United States | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | mx01.dandomain.dk | 212.237.249.50 | mx1.dandomain.dk | AS48854 team.blue Denmark A/S |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves 21montering.dk: no address www.21montering.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 | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2019102605 |
| Primary NS (MNAME) | udns1.cscdns.net |
| Responsible (RNAME) | premiumdns@support.neustar |
| Refresh | 28800s |
| Retry | 7200s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | CSC Digital Brand Service, Inc |
| Registered | 2016-11-16 |
| Expires | 2026-11-30 (40d) |
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).
| Domain | Registrar |
|---|---|
| godt-taenkt.dk | CSC Digital Brand Service, Inc |
| invita-gt.dk | CSC Digital Brand Service, Inc |
| k21montering.dk | CSC Digital Brand Service, Inc |
| norema.dk | CSC Digital Brand Service, Inc |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 09:31:10 | 455ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-30 04:16:44 | 584ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-23 19:19:36 | 567ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-09-10 08:42:39 | 555ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-25 20:24:50 | 9454ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-20 16:24:47 | 735ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 12:45:56 shown | 611ms | 2 NS 1 A 1 MX | 🔓 Insecure |