guldfeldt-svbg-byg.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 7 September 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 193.221.124.15 is hosted by CoMaSys ApS (AS51377) in Denmark. Mail is handled by dk.mx1.mailanyone.net, dk.mx2.mx25.net 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 |
|---|---|---|---|---|---|---|---|
| 193.221.124.15 | 43200s | — | AS51377 | CoMaSys ApS | 193.221.124.0/24 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 193.221.124.15 |
| 🔶 Autoconfig | 193.221.124.15 |
| TXT Record |
|---|
| v=spf1 include:spf.protection.outlook.com include:spf.mailanyone.net mx a:mail.hjsas.dk -all |
| vpe=e5a2d5b9 |
| Policy | Record (guldfeldt-svbg-byg.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com include:spf.mailanyone.net mx a:mail.hjsas.dk -all |
| www | 193.221.124.15 (AS51377) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 4/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.dk.mx1.mailanyone.net | DANE-EE · Full cert · SHA-256 | 443DFE296DAC92DD311766BAD0B04CC7… |
| SMTP _25._tcp.dk.mx1.mailanyone.net | DANE-EE · Full cert · SHA-256 | 1AAAC405385DEB66C25E43D629569F6C… |
| SMTP _25._tcp.dk.mx2.mx25.net | DANE-EE · Full cert · SHA-256 | 443DFE296DAC92DD311766BAD0B04CC7… |
| SMTP _25._tcp.dk.mx2.mx25.net | DANE-EE · Full cert · SHA-256 | 1AAAC405385DEB66C25E43D629569F6C… |
| SMTP _25._tcp.dk.mx3.mailanyone.net | DANE-EE · Full cert · SHA-256 | 443DFE296DAC92DD311766BAD0B04CC7… |
| SMTP _25._tcp.dk.mx3.mailanyone.net | DANE-EE · Full cert · SHA-256 | 1AAAC405385DEB66C25E43D629569F6C… |
| SMTP _25._tcp.dk.mx4.mx25.net | DANE-EE · Full cert · SHA-256 | 443DFE296DAC92DD311766BAD0B04CC7… |
| SMTP _25._tcp.dk.mx4.mx25.net | DANE-EE · Full cert · SHA-256 | 1AAAC405385DEB66C25E43D629569F6C… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026100201 |
| 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 | 2017-09-07 |
| Expires | 2027-09-30 (341d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-03 02:36:00 shown | 4168ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-30 02:04:24 | 4802ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-06 05:17:41 | 1573ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-30 05:05:02 | 1118ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-02 05:02:53 | 1793ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-02 15:57:50 | 5205ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-24 17:29:56 | 698ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-17 10:11:54 | 2937ms | 2 NS 1 A 4 MX | 🔒 Secure |