blue5.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 46.30.213.20 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx1.pub.mailpod10-cph3.one.com, mx2.pub.mailpod10-cph3.one.com and 2 more. The zone is DNSSEC-signed and validates, has no 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 |
|---|---|---|---|---|---|---|---|
| 46.30.213.20 | 3600s | webcluster1.webpod12-cph3.one.com | AS51468 | One.com A/S | 46.30.208.0/21 | 🇩🇰 Denmark | Copenhagen |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 10800s | mx1.pub.mailpod10-cph3.one.com | 104.37.34.70 | mx1.pub.mailpod10-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx2.pub.mailpod10-cph3.one.com | 104.37.34.71 | mx2.pub.mailpod10-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx3.pub.mailpod10-cph3.one.com | 104.37.34.72 | mx3.pub.mailpod10-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx4.pub.mailpod10-cph3.one.com | 104.37.34.73 | mx4.pub.mailpod10-cph3.one.com | AS51468 One.com A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 46.30.213.20 |
| 🔶 Autoconfig | 46.30.213.20 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:10a:a4:64ef:a9b5:d3cd | 3600s | — | AS51468 | One.com A/S | 2a02:2350:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Copenhagen |
| www | 46.30.213.28 2a02:2350:5:10a:e2:c36c:81de:439c (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network blue5.dk: 46.30.213.28 2a02:2350:5:10a:e2:c36c:81de:439c (AS51468) www.blue5.dk: 46.30.213.28 2a02:2350:5:10a:e2:c36c:81de:439c (AS51468) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.pub.mailpod10-cph3.one.com | DANE-EE · SPKI · SHA-256 | 5932F73E86E0548B77B582F47919F654… |
| SMTP _25._tcp.mx2.pub.mailpod10-cph3.one.com | DANE-EE · SPKI · SHA-256 | 5932F73E86E0548B77B582F47919F654… |
| SMTP _25._tcp.mx3.pub.mailpod10-cph3.one.com | DANE-EE · SPKI · SHA-256 | 5932F73E86E0548B77B582F47919F654… |
| SMTP _25._tcp.mx4.pub.mailpod10-cph3.one.com | DANE-EE · SPKI · SHA-256 | 5932F73E86E0548B77B582F47919F654… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026070505 |
| 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 |
|---|---|---|---|
| 2026-09-29 23:56:05 | 924ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-27 16:08:17 | 2624ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-24 02:56:40 | 754ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-23 00:01:40 | 1921ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-14 04:51:32 | 598ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-07 09:22:18 | 1144ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-25 19:46:35 | 4865ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-06 00:19:49 shown | 930ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-02 00:21:31 | 839ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-16 15:13:53 | 2196ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-16 15:06:18 | 4397ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-16 15:05:34 | 523ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-16 15:00:30 | 805ms | 2 NS 1 A 4 MX | 🔒 Secure |