harder-net.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 46.30.215.49 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx1.pub.mailpod14-cph3.one.com, mx2.pub.mailpod14-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 |
|---|---|---|---|---|---|---|---|
| 46.30.215.49 | 3600s | webcluster2.webpod15-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.mailpod14-cph3.one.com | 185.10.9.212 | mx1.pub.mailpod14-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx2.pub.mailpod14-cph3.one.com | 185.10.9.213 | mx2.pub.mailpod14-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx3.pub.mailpod14-cph3.one.com | 185.10.9.214 | mx3.pub.mailpod14-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx4.pub.mailpod14-cph3.one.com | 185.10.9.215 | mx4.pub.mailpod14-cph3.one.com | AS51468 One.com A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 46.30.215.49 |
| 🔶 Autoconfig | 46.30.215.49 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:10e:808e:2ecb:a7be:5c7d | 3600s | — | AS51468 | One.com A/S | 2a02:2350:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Copenhagen |
| TXT Record |
|---|
| v=spf1 include:_custspf.one.com include:spf.protection.outlook.com ~all |
| Policy | Record (harder-net.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_custspf.one.com include:spf.protection.outlook.com ~all |
| www | Address record (no CNAME) |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 2/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.pub.mailpod14-cph3.one.com | DANE-EE · SPKI · SHA-256 | 42A27444ECBF3C0485409E27E2A6AB15… |
| SMTP _25._tcp.mx2.pub.mailpod14-cph3.one.com | DANE-EE · SPKI · SHA-256 | 42A27444ECBF3C0485409E27E2A6AB15… |
| SMTP _25._tcp.mx3.pub.mailpod14-cph3.one.com | DANE-EE · SPKI · SHA-256 | 42A27444ECBF3C0485409E27E2A6AB15… |
| SMTP _25._tcp.mx4.pub.mailpod14-cph3.one.com | DANE-EE · SPKI · SHA-256 | 42A27444ECBF3C0485409E27E2A6AB15… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026090205 |
| 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 |
|---|---|---|---|
| 2026-10-02 11:55:33 | 526ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-29 15:09:29 | 1760ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-24 03:31:06 shown | 729ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-06 22:31:19 | 992ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-21 13:36:29 | 6762ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-13 10:16:47 | 8964ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-04 19:13:37 | 1634ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-26 00:06:08 | 837ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-20 22:45:35 | 582ms | 2 NS 1 A 4 MX | ⚠️ Bogus |
| 2026-06-17 11:05:03 | 1294ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-17 11:02:51 | 944ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-17 11:01:16 | 1683ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-17 10:57:45 | 1180ms | 2 NS 1 A 4 MX | 🔒 Secure |