gusa.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 7 October 2014 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.249.40.48 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by mx1.mailpod15-cph3.g1i.one.com, mx2.mailpod15-cph3.g1i.one.com and 2 more. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest 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 |
|---|---|---|---|---|---|---|---|
| 195.249.40.48 | 3600s | — | AS3292 | TDC Holding A/S | 195.249.0.0/16 | 🇩🇰 Denmark | Aarhus |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 10800s | mx1.mailpod15-cph3.g1i.one.com | 104.37.35.36 | mx1.mailpod15-cph3.g1i.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx2.mailpod15-cph3.g1i.one.com | 104.37.35.37 | mx2.mailpod15-cph3.g1i.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx3.mailpod15-cph3.g1i.one.com | 104.37.35.38 | mx3.mailpod15-cph3.g1i.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx4.mailpod15-cph3.g1i.one.com | 104.37.35.39 | mx4.mailpod15-cph3.g1i.one.com | AS51468 One.com A/S |
| www CNAME | gusa.dk (all on gusa.dk) → 195.249.40.48 (AS3292) |
| www vs bare domain | Same network |
| 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.mailpod15-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | E54A7262DC6E3E0F06227A22B71D01DC… |
| SMTP _25._tcp.mx2.mailpod15-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | E54A7262DC6E3E0F06227A22B71D01DC… |
| SMTP _25._tcp.mx3.mailpod15-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | E54A7262DC6E3E0F06227A22B71D01DC… |
| SMTP _25._tcp.mx4.mailpod15-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | E54A7262DC6E3E0F06227A22B71D01DC… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026092802 |
| 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 | ONE.COM A/S |
| Registered | 2014-10-07 |
| Expires | 2026-10-31 (13d) |
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 |
|---|---|---|---|
| 2026-10-08 07:46:42 shown | 464ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-30 10:37:22 | 469ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-30 02:02:18 | 536ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-29 00:16:39 | 748ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-28 00:02:25 | 903ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-23 23:01:24 | 595ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-28 00:44:44 | 669ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-31 13:20:18 | 9137ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-26 18:04:57 | 4791ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-28 02:22:51 | 643ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-26 02:45:38 | 1535ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-22 14:15:42 | 703ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-17 10:44:06 | 688ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-17 10:43:16 | 707ms | 2 NS 1 A 4 MX | 🔒 Secure |