studio21.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 11 February 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx1.mailpod16-cph3.g1i.one.com, mx2.mailpod16-cph3.g1i.one.com and 2 more. The zone is of unknown DNSSEC status, 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.
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 10800s | mx1.mailpod16-cph3.g1i.one.com | — | — | — |
| 10 | 10800s | mx2.mailpod16-cph3.g1i.one.com | — | — | — |
| 10 | 10800s | mx3.mailpod16-cph3.g1i.one.com | — | — | — |
| 10 | 10800s | mx4.mailpod16-cph3.g1i.one.com | — | — | — |
| www CNAME | ext-cust.squarespace.com (all on squarespace.com) |
| www vs bare domain | Same network studio21.dk: 198.185.159.144 198.185.159.145 198.49.23.144 198.49.23.145 (AS53831) www.studio21.dk: 198.185.159.144 198.185.159.145 198.49.23.144 198.49.23.145 (AS53831) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Check | Result |
|---|---|
| Validation Status | ❓ Unknown |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: timed out |
| Field | Value |
|---|---|
| Serial | 2026072901 |
| 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 | 2025-02-11 |
| Expires | 2027-02-10 (107d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-03 02:54:46 | 562ms | 2 NS 4 A 4 MX | 🔒 Secure |
| 2026-09-24 22:19:09 | 864ms | 2 NS 4 A 4 MX | 🔒 Secure |
| 2026-09-23 20:54:30 | 753ms | 2 NS 4 A 4 MX | 🔒 Secure |
| 2026-09-20 07:18:40 | 681ms | 2 NS 4 A 4 MX | 🔒 Secure |
| 2026-09-02 12:20:05 | 902ms | 2 NS 4 A 4 MX | 🔒 Secure |
| 2026-08-25 18:09:10 | 1167ms | 2 NS 4 A 4 MX | 🔒 Secure |
| 2026-07-30 08:36:54 shown | 18966ms | 2 NS 0 A 4 MX | ❓ Unknown |
| 2026-07-26 01:40:46 | 938ms | 2 NS 4 A 4 MX | 🔒 Secure |
| 2026-07-23 00:21:06 | 985ms | 2 NS 4 A 4 MX | 🔒 Secure |
| 2026-06-24 16:07:56 | 991ms | 2 NS 4 A 4 MX | 🔒 Secure |
| 2026-06-21 05:08:10 | 783ms | 2 NS 4 A 4 MX | 🔒 Secure |
| 2026-06-17 23:58:01 | 732ms | 2 NS 4 A 4 MX | 🔒 Secure |