cleancluster.dk is a .dk domain served by 4 nameservers (ns1-03.azure-dns.com, ns2-03.azure-dns.net, ns3-03.azure-dns.org and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.42.112 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by cleancluster-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 185.21.42.112 | 300s | prolinux102.curanet.dk | AS48854 | team.blue Denmark A/S | 185.21.40.0/22 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.136 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| v=spf1 include:spf.protection.outlook.com include:authsmtp.com include:_spf.presscloud.com include:servers.mcsv.net include:emsd1.com -all |
| Policy | Record (cleancluster.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com include:authsmtp.com include:_spf.presscloud.com include:servers.mcsv.net include:emsd1.com -all |
| Policy | Record (_dmarc.cleancluster.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www CNAME | cleancluster.dk (all on cleancluster.dk) → 185.21.42.112 (AS48854) |
| www vs bare domain | Same network |
| Wildcard | No |
DNS lookups: 5/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.cleancluster.dk | cleancluster.dk.acme.service.one.com |
| 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 | 1 |
| Primary NS (MNAME) | ns1-03.azure-dns.com |
| Responsible (RNAME) | azuredns-hostmaster@microsoft.com |
| Refresh | 3600s |
| Retry | 300s |
| Expire | 2419200s |
| Minimum (neg-cache TTL) | 300s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-03 18:32:53 shown | 1051ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-19 15:55:46 | 1085ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-27 09:14:53 | 1264ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-02 01:36:32 | 1080ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 21:10:24 | 681ms | 4 NS 1 A 1 MX | 🔓 Insecure |