12c.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 195.47.247.18 is hosted by One.com A/S (AS51468). Mail is handled by mx1.mailpod15-cph3.g1i.one.com, mx2.mailpod15-cph3.g1i.one.com and 2 more. The zone is DNSSEC-signed and validates, 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 195.47.247.18 | 3600s | one.com.webforward.g1i.one | AS51468 | One.com A/S | 195.47.247.0/24 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 10800s | mx1.mailpod15-cph3.g1i.one.com | 104.37.35.36 | mx1.mailpod15-cph3.g1i.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx2.mailpod15-cph3.g1i.one.com | 104.37.35.37 | mx2.mailpod15-cph3.g1i.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx3.mailpod15-cph3.g1i.one.com | 104.37.35.38 | mx3.mailpod15-cph3.g1i.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx4.mailpod15-cph3.g1i.one.com | 104.37.35.39 | mx4.mailpod15-cph3.g1i.one.com | AS51468 One.com A/S |
| TXT Record |
|---|
| MS=188AC1FB97FF05D08C63387E124EF3722FE95FE6 |
| www | 195.47.247.18 (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.mailpod15-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | DB00CDA1DB82CC93CBF96D7D5806F329… |
| SMTP _25._tcp.mx2.mailpod15-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | DB00CDA1DB82CC93CBF96D7D5806F329… |
| SMTP _25._tcp.mx3.mailpod15-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | DB00CDA1DB82CC93CBF96D7D5806F329… |
| SMTP _25._tcp.mx4.mailpod15-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | DB00CDA1DB82CC93CBF96D7D5806F329… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026072401 |
| 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 |
|---|---|---|---|
| 2026-10-15 05:54:24 | 1245ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-26 13:53:07 | 9555ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-24 14:20:50 | 719ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-28 19:14:10 | 883ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-26 17:13:19 | 1001ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-25 09:06:53 | 8530ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-17 14:03:52 | 5023ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-16 10:52:48 | 4277ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-24 16:58:40 shown | 994ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-25 15:06:44 | 635ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-19 02:15:17 | 2551ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-18 09:29:15 | 848ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-16 13:00:36 | 2329ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-16 12:58:22 | 1892ms | 2 NS 1 A 4 MX | 🔒 Secure |