son.dk is a .dk domain served by 2 nameservers (a.portsdns.se, b.portsdns.net). It was registered on 17 November 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 162.159.135.42 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1-dk.centerasecurity.dk, mx2-dk.centerasecurity.dk and 1 more. The zone is DNSSEC-signed and validates, 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 162.159.135.42 | 300s | — | AS13335 | Cloudflare, Inc. | 162.159.128.0/19 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 162.159.135.42 |
| 🔶 Autoconfig | 162.159.135.42 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | owa.son.dk |
| TXT Record |
|---|
| v=spf1 ip4:193.0.243.20 include:spf.protection.outlook.com -all |
| Policy | Record (son.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:193.0.243.20 include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.son.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; pct=100; rua=mailto:615ad3c60eb36@dmarc.centerasecurity.com; adkim=s; aspf=s |
| www | 162.159.135.42 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 1/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.son.dk | son.dk.kinstavalidation.app |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026062800 |
| Primary NS (MNAME) | a.portsdns.se |
| Responsible (RNAME) | registry@ports.net |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 28800s |
| Field | Value |
|---|---|
| Registrar | Abion AB |
| Registered | 1998-11-17 |
| Expires | 2026-12-31 (71d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-01 01:07:13 | 940ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-28 09:15:14 | 999ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-26 16:46:28 | 1749ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-24 16:22:49 | 1108ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-23 15:50:29 | 1122ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-28 14:13:52 | 1680ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-26 12:09:05 | 1204ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-23 16:29:09 | 4174ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-29 20:34:48 | 3428ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-27 02:53:24 | 1333ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-25 01:40:41 | 1371ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-28 22:31:39 shown | 935ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-17 14:37:53 | 2410ms | 2 NS 1 A 3 MX | 🔒 Secure |