byguiderne.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 6 June 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.111.240.147 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx1.pub.mailpod10-cph3.one.com, mx2.pub.mailpod10-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 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 |
|---|---|---|---|---|---|---|---|
| 77.111.240.147 | 3600s | webcluster20.webpod11-cph3.one.com | AS51468 | One.com A/S | 77.111.240.0/22 | 🇩🇰 Denmark | Copenhagen |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 10800s | mx1.pub.mailpod10-cph3.one.com | 104.37.34.70 | mx1.pub.mailpod10-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx2.pub.mailpod10-cph3.one.com | 104.37.34.71 | mx2.pub.mailpod10-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx3.pub.mailpod10-cph3.one.com | 104.37.34.72 | mx3.pub.mailpod10-cph3.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx4.pub.mailpod10-cph3.one.com | 104.37.34.73 | mx4.pub.mailpod10-cph3.one.com | AS51468 One.com A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 77.111.240.147 |
| 🔶 Autoconfig | 77.111.240.147 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:102:9c:527a:9652:2377 | 3600s | — | AS51468 | One.com A/S | 2a02:2350:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Copenhagen |
| www | 77.111.240.147 2a02:2350:5:102:9c:527a:9652:2377 (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network byguiderne.dk: 77.111.240.147 2a02:2350:5:102:9c:527a:9652:2377 (AS51468) www.byguiderne.dk: 77.111.240.147 2a02:2350:5:102:9c:527a:9652:2377 (AS51468) |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.pub.mailpod10-cph3.one.com | DANE-EE · SPKI · SHA-256 | 6F2F6668E559087AD0C5D55F223128E2… |
| SMTP _25._tcp.mx2.pub.mailpod10-cph3.one.com | DANE-EE · SPKI · SHA-256 | 6F2F6668E559087AD0C5D55F223128E2… |
| SMTP _25._tcp.mx3.pub.mailpod10-cph3.one.com | DANE-EE · SPKI · SHA-256 | 6F2F6668E559087AD0C5D55F223128E2… |
| SMTP _25._tcp.mx4.pub.mailpod10-cph3.one.com | DANE-EE · SPKI · SHA-256 | 6F2F6668E559087AD0C5D55F223128E2… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026100601 |
| 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 | 2020-06-06 |
| Expires | 2027-04-30 (193d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-06 14:34:29 shown | 2274ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-10-03 13:13:19 | 481ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-28 05:45:52 | 781ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-26 05:01:25 | 636ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-26 11:43:18 | 704ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-01 15:48:24 | 9133ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-29 03:44:15 | 1065ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-26 00:38:23 | 6781ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-23 23:51:28 | 5057ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-04 21:50:38 | 884ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-22 17:26:23 | 715ms | 2 NS 1 A 4 MX | ⚠️ Bogus |
| 2026-06-16 18:26:00 | 517ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-16 18:20:37 | 798ms | 2 NS 1 A 4 MX | 🔒 Secure |