mwu.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 172.104.159.57 is hosted by Akamai Connected Cloud (AS63949) in Germany. Mail is handled by mx1.emailsrvr.com, mx2.emailsrvr.com. The zone is DNSSEC-signed and validates, publishes a 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 172.104.159.57 | 600s | radius.mwu.dk | AS63949 | Akamai Connected Cloud | 172.104.128.0/18 | 🇩🇪 Germany | Frankfurt am Main |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 7200s | mx1.emailsrvr.com | 173.203.187.1 | mx1.emailsrvr.com | AS27357 Rackspace Hosting |
| 20 | 7200s | mx2.emailsrvr.com | 146.20.161.2 | mx2.emailsrvr.com | AS27357 Rackspace Hosting |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a01:7e01::f03c:93ff:feb4:13c6 | 600s | — | AS63949 | Akamai Connected Cloud | 2a01:7e00:0:0:0:0:0:0/30 | 🇩🇪 Germany | Frankfurt am Main |
| TXT Record |
|---|
| Soverin=MDCqWwLZvbiaU6Ju |
| v=spf1 a mx include:emailsrvr.com include:_custspf.one.com -all |
| Policy | Record (mwu.dk) |
|---|---|
| -all (hard fail) | v=spf1 a mx include:emailsrvr.com include:_custspf.one.com -all |
| Policy | Record (_dmarc.mwu.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:wulff@ratatosk.net; |
| www CNAME | pz-dk-mwu-www.b-cdn.net (all on b-cdn.net) |
| www vs bare domain | Same network mwu.dk: 88.218.3.190 2a0d:5600:1a:26::2 (AS9009) www.mwu.dk: 88.218.3.190 2a0d:5600:1a:26::2 (AS9009) |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
DNS lookups: 4/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026060901 |
| 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 |
|---|---|---|---|
| 2026-09-30 14:47:27 | 1433ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-29 22:49:05 | 1227ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-28 10:42:45 | 1008ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-28 03:13:10 | 581ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-27 01:49:36 | 566ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-24 19:59:39 | 973ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-11 07:15:16 | 3077ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-10 02:43:58 | 2451ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-06 19:41:29 | 886ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-07-11 18:59:17 | 1131ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-20 06:28:02 | 669ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-19 22:45:12 shown | 3606ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-18 06:15:24 | 633ms | 2 NS 1 A 2 MX | 🔒 Secure |