simson-it.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 9 March 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.213.148 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by eu-esec-01.heimdalsecurity.com, eu-esec-02.heimdalsecurity.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 |
|---|---|---|---|---|---|---|---|
| 46.30.213.148 | 3600s | webcluster1.webpod14-cph3.one.com | AS51468 | One.com A/S | 46.30.208.0/21 | 🇩🇰 Denmark | Copenhagen |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.97.201.88 |
| 🔶 Autoconfig | 46.30.213.148 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:10c:a7:9f15:f040:7a54 | 3600s | — | AS51468 | One.com A/S | 2a02:2350:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Copenhagen |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| v=spf1 include:spf.protection.outlook.com include:_custspf.one.com include:spf-esec.heimdalsecurity.com -all |
| Policy | Record (simson-it.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com include:_custspf.one.com include:spf-esec.heimdalsecurity.com -all |
| Policy | Record (_dmarc.simson-it.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:dmarc@simson-it.dk; ruf=mailto:dmarc@simson-it.dk; rf=afrf; sp=quarantine; fo=1; adkim=r; aspf=r |
| www | 46.30.213.151 2a02:2350:5:10c:be:a5aa:1898:5ca2 (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network simson-it.dk: 46.30.213.151 2a02:2350:5:10c:be:a5aa:1898:5ca2 (AS51468) www.simson-it.dk: 46.30.213.151 2a02:2350:5:10c:be:a5aa:1898:5ca2 (AS51468) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 3/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.eu-esec-01.heimdalsecurity.com | DANE-EE · SPKI · SHA-256 | 2E8933DD6DB99304A5A9D5C4ECDE7B8E… |
| SMTP _25._tcp.eu-esec-02.heimdalsecurity.com | DANE-EE · SPKI · SHA-256 | 2E8933DD6DB99304A5A9D5C4ECDE7B8E… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026062001 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2006-03-09 |
| Expires | 2027-03-31 (161d) |
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).
| Domain | Registrar |
|---|---|
| designwater.dk | ONE.COM A/S |
| linanco.dk | ONE.COM A/S |
| luciani.dk | ONE.COM A/S |
| simofone.dk | ONE.COM A/S |
| tattoodarts.dk | ONE.COM A/S |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-19 04:39:07 | 5654ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-29 15:45:41 | 935ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-18 07:35:03 | 721ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-23 17:11:24 | 1849ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-25 09:35:26 | 2726ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-25 07:16:47 | 773ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-21 05:34:44 shown | 1509ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-18 02:41:26 | 2994ms | 2 NS 1 A 2 MX | 🔒 Secure |