byggeri.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 85.235.243.20 is hosted by Norlys Telco A/S (AS3308) in Denmark. Mail is handled by mx1.onlinemail.io, mx2.onlinemail.io. 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 |
|---|---|---|---|---|---|---|---|
| 85.235.243.20 | 3600s | nyhedsbrev.odsgard.dk | AS3308 | Norlys Telco A/S | 85.235.224.0/19 | 🇩🇰 Denmark | Hørsholm |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx1.onlinemail.io | 185.21.42.12 | mx1.onlinemail.io | AS48854 team.blue Denmark A/S |
| 20 | 3600s | mx2.onlinemail.io | 46.36.208.16 | mx2.onlinemail.io | AS48854 team.blue Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | byggeri.dk → 85.235.243.20 |
| 🔶 Autoconfig | byggeri.dk → 85.235.243.20 |
| TXT Record |
|---|
| v=spf1 a mx ptr ip4:86.58.254.141 mx:byggeri.dk ~all |
| Policy | Record (byggeri.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a mx ptr ip4:86.58.254.141 mx:byggeri.dk ~all |
| www CNAME | byggeri.dk (all on byggeri.dk) → 85.235.243.20 (AS3308) |
| 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
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.byggeri.dk | byggeri.dk |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026092901 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-01 08:15:39 shown | 499ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-30 12:59:11 | 2461ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-24 11:59:02 | 1284ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-23 11:55:14 | 753ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-28 02:40:31 | 887ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-09 11:29:10 | 2939ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-01 23:29:20 | 2196ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-16 18:15:19 | 711ms | 2 NS 1 A 2 MX | 🔒 Secure |