mj-byg.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 1 August 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.47.247.18 is hosted by One.com A/S (AS51468). Mail is handled by barracuda.mitcom.dk. The zone is DNSSEC-signed and validates, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 195.47.247.18 | 600s | one.com.webforward.g1i.one | AS51468 | One.com A/S | 195.47.247.0/24 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 600s | barracuda.mitcom.dk | 85.27.179.10 | barracuda.mitcom.dk | AS34705 Norlys Telco A/S |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 10 | 443 | exchange-mail.dk |
| TXT Record |
|---|
| MS=ms21365966 |
| v=spf1 include:mitcom.dk include:exchange-mail.dk ip4:62.243.38.142 -all |
| Policy | Record (mj-byg.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:mitcom.dk include:exchange-mail.dk ip4:62.243.38.142 -all |
| Policy | Record (_dmarc.mj-byg.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; pct=100; |
| www CNAME | mit-apache01.mitcom.dk (all on mitcom.dk) → 85.27.179.22 (AS34705) |
| www vs bare domain | Different networks (all like this) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 4/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026101306 |
| 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 | 2000-08-01 |
| Expires | 2027-09-30 (347d) |
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 |
|---|---|---|---|
| 2026-10-13 22:37:32 shown | 780ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 11:56:18 | 616ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-23 20:46:54 | 605ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-02 21:32:41 | 603ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-01 08:33:14 | 1182ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 00:11:56 | 625ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-24 00:28:20 | 8604ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-03 01:30:14 | 614ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 04:48:02 | 586ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-21 06:17:18 | 1184ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-20 15:32:19 | 1107ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 06:53:22 | 4375ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-17 21:54:00 | 632ms | 2 NS 1 A 1 MX | 🔒 Secure |