cstec.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 46.30.213.54 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx1.pub.mailpod9-cph3.one.com, mx2.pub.mailpod9-cph3.one.com and 2 more. The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|
| ns01.one.com | — | — | — |
| ns02.one.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 46.30.213.54 | — | webcluster2.webpod12-cph3.one.com | AS51468 | One.com A/S | 46.30.208.0/21 | 🇩🇰 Denmark | Copenhagen |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:10a:80b2:18af:346e:f4a2 | — | — | AS51468 | One.com A/S | 2a02:2350:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Copenhagen |
| www | 46.30.213.54 2a02:2350:5:10a:80b2:18af:346e:f4a2 (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network cstec.dk: 46.30.213.54 2a02:2350:5:10a:80b2:18af:346e:f4a2 (AS51468) www.cstec.dk: 46.30.213.54 2a02:2350:5:10a:80b2:18af:346e:f4a2 (AS51468) |
| 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.pub.mailpod9-cph3.one.com | DANE-EE · SPKI · SHA-256 | 5D2162F5CED0ACD2C3D63E5582045A6C… |
| SMTP _25._tcp.mx2.pub.mailpod9-cph3.one.com | DANE-EE · SPKI · SHA-256 | 5D2162F5CED0ACD2C3D63E5582045A6C… |
| SMTP _25._tcp.mx3.pub.mailpod9-cph3.one.com | DANE-EE · SPKI · SHA-256 | 5D2162F5CED0ACD2C3D63E5582045A6C… |
| SMTP _25._tcp.mx4.pub.mailpod9-cph3.one.com | DANE-EE · SPKI · SHA-256 | 5D2162F5CED0ACD2C3D63E5582045A6C… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026061101 |
| 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 |
|---|---|---|---|
| 2026-10-12 04:00:57 | 801ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-30 10:10:44 | 974ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-27 22:23:20 | 1141ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-22 16:56:44 | 605ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-11 21:25:03 | 1729ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-28 02:01:14 | 852ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-25 07:32:33 | 669ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-12 22:10:16 | 887ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-02 09:59:38 | 9014ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-12 23:07:02 | 1042ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-01 00:30:02 | 754ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-16 23:05:56 shown | 667ms | 2 NS 1 A 4 MX | 🔒 Secure |