blue-yonder.dk is a .dk domain served by 3 nameservers (ns.udag.de, ns.udag.net, ns.udag.org). It was registered on 2 August 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx00.udag.de, mx01.udag.de. 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 |
|---|---|---|---|
| ns.udag.de | — | — | — |
| ns.udag.net | — | — | — |
| ns.udag.org | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 89.31.143.90 | — | — | AS202108 | — | — | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | mx00.udag.de | 62.146.106.39 | mx00.udag.de | AS15598 NorthC Deutschland GmbH |
| 20 | — | mx01.udag.de | 62.146.106.40 | mx01.udag.de | AS15598 NorthC Deutschland GmbH |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (blue-yonder.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.blue-yonder.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com |
| www | 89.31.143.90 (AS202108) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 0/10 · 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 | 2024062006 |
| Primary NS (MNAME) | ns.udag.de |
| Responsible (RNAME) | hostmaster@united-domains.de |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2011-08-02 |
| Expires | 2027-08-31 (310d) |
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 |
|---|---|---|---|
| 2026-08-27 01:35:41 | 863ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-24 21:45:14 | 1346ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-07-01 23:58:20 | 1016ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-16 15:20:36 | 1585ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-16 15:08:53 | 2931ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-16 15:07:36 shown | 504ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-16 15:00:41 | 558ms | 3 NS 1 A 2 MX | 🔓 Insecure |