sosniecki.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 28 March 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 212.83.51.90 is hosted by 23M GmbH (AS47447) in Germany. Mail is handled by sosniecki.dk. 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 |
|---|---|---|---|---|---|---|---|
| 212.83.51.90 | 43200s | — | AS47447 | 23M GmbH | 212.83.32.0/19 | 🇩🇪 Germany | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 43200s | sosniecki.dk | 212.83.51.90 | — | AS47447 23M GmbH |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | sosniecki.dk → 212.83.51.90 |
| 🔶 Autoconfig | sosniecki.dk → 212.83.51.90 |
| TXT Record |
|---|
| v=spf1 a mx ptr ip4:212.83.51.90 mx:sosniecki.dk ~all |
| Policy | Record (sosniecki.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a mx ptr ip4:212.83.51.90 mx:sosniecki.dk ~all |
| www CNAME | sosniecki.dk (all on sosniecki.dk) → 212.83.51.90 (AS47447) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 4/10 · policy: ~all
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.sosniecki.dk | sosniecki.dk |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026100801 |
| 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 | 2007-03-28 |
| Expires | 2027-03-31 (163d) |
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 |
|---|---|---|---|
| 2026-10-10 02:59:20 shown | 1377ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-20 11:24:41 | 660ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-08 17:40:14 | 2197ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 17:11:30 | 896ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-25 18:03:45 | 2735ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-10 10:54:43 | 1261ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-09 23:31:36 | 799ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-26 16:24:35 | 3908ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 00:59:30 | 1037ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 16:38:29 | 6858ms | 2 NS 1 A 1 MX | 🔒 Secure |