cs.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 2 October 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 89.188.72.209 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx1-dk.centerasecurity.dk, mx2-dk.centerasecurity.dk and 1 more. The zone is DNSSEC-signed and validates, publishes a 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 |
|---|---|---|---|
| ns01.one.com | — | — | — |
| ns02.one.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 89.188.72.209 | — | vps1340.basicserver.io | AS48854 | team.blue Denmark A/S | 89.188.72.0/21 | 🇩🇰 Denmark | — |
| TXT Record |
|---|
| v=spf1 ip4:62.242.104.198 ip4:62.242.207.114 ip4:62.242.207.115 ip4:52.186.121.110 ip4:40.68.36.243 ip4:89.188.72.209 include:spf.protection.outlook.com include:servers.mcsv.net include:_spf.centerasecurity.dk -all |
| Policy | Record (cs.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:62.242.104.198 ip4:62.242.207.114 ip4:62.242.207.115 ip4:52.186.121.110 ip4:40.68.36.243 ip4:89.188.72.209 include:spf.protection.outlook.com include:servers.mcsv.net include:_spf.centerasecurity.dk -all |
| Policy | Record (_dmarc.cs.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:6915a2a19ff98@dmarc-dk.centerasecurity.com; |
| www CNAME | cs.dk (all on cs.dk) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 3/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026053101 |
| 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 | 1997-10-02 |
| Expires | 2026-12-31 (67d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-03 14:16:04 | 832ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-10-02 14:13:59 | 698ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-25 02:15:15 | 951ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-24 01:54:00 | 965ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-14 16:16:58 | 1223ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-07 12:36:05 | 3512ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-02 14:19:17 | 979ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-27 14:20:25 | 952ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-05 22:28:17 | 2644ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-25 20:57:52 | 9262ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-17 06:03:08 | 2272ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-03 09:58:10 | 6942ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-23 22:39:07 | 1211ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-23 03:55:12 | 1168ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-16 23:06:23 shown | 842ms | 2 NS 1 A 3 MX | 🔒 Secure |