kystens.dk is a .dk domain served by 2 nameservers (ns1.o2switch.net, ns2.o2switch.net). It was registered on 30 December 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 109.234.167.155 is hosted by O2switch SAS (AS50474) in France. Mail is handled by mail.kystens.dk. The zone is not DNSSEC-signed, 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 |
|---|---|---|---|
| ns1.o2switch.net | 109.234.160.5 | ns1.o2switch.net | AS50474 O2switch SAS |
| ns2.o2switch.net | 109.234.161.5 | — | AS50474 O2switch SAS |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 109.234.167.155 | 14400s | 109-234-167-155.reverse.odns.fr | AS50474 | O2switch SAS | 109.234.160.0/21 | 🇫🇷 France | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 14400s | mail.kystens.dk | 109.234.167.155 | 109-234-167-155.reverse.odns.fr | AS50474 O2switch SAS |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 109.234.167.155 |
| 🔶 Autoconfig | 109.234.167.155 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | cpanelemaildiscovery.cpanel.net |
| TXT Record |
|---|
| google-site-verification=jkTFOFeFCLbTqxKy2v63To5zyQ5imvLU_MpYOwN6Kr4 |
| v=spf1 ip4:109.234.167.155 +a +mx +include:spf.jabatus.fr ~all |
| Policy | Record (kystens.dk) |
|---|---|
| ~all (soft fail) | v=spf1 ip4:109.234.167.155 +a +mx +include:spf.jabatus.fr ~all |
| Policy | Record (_dmarc.kystens.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www CNAME | kystens.dk (all on kystens.dk) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 3/10 · policy: ~all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026011700 |
| Primary NS (MNAME) | ns1.o2switch.net |
| Responsible (RNAME) | sysadmin@o2switch.fr |
| Refresh | 3600s |
| Retry | 1800s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Realtime Register B.V. |
| Registered | 2025-12-30 |
| Expires | 2026-12-29 (70d) |
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 |
|---|---|---|---|
| 2026-10-01 05:20:20 | 923ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-12 09:49:25 | 8556ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-28 08:20:41 | 1058ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-26 14:06:08 shown | 3004ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-26 03:56:18 | 816ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-23 19:06:01 | 1007ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-22 07:28:39 | 887ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-20 20:28:04 | 1577ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-19 15:56:32 | 2881ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 20:05:56 | 1101ms | 2 NS 1 A 1 MX | 🔓 Insecure |