bttbolig.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 7 January 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.213.55 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx1.mailpod16-cph3.g1i.one.com, mx2.mailpod16-cph3.g1i.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 this 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 |
|---|---|---|---|---|---|---|---|
| 46.30.213.55 | 3600s | webcluster2.webpod12-cph3.one.com | AS51468 | One.com A/S | 46.30.208.0/21 | 🇩🇰 Denmark | Copenhagen |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 10800s | mx1.mailpod16-cph3.g1i.one.com | 5.249.232.33 | mx1.mailpod16-cph3.g1i.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx2.mailpod16-cph3.g1i.one.com | 5.249.232.34 | mx2.mailpod16-cph3.g1i.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx3.mailpod16-cph3.g1i.one.com | 5.249.232.35 | mx3.mailpod16-cph3.g1i.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx4.mailpod16-cph3.g1i.one.com | 5.249.232.36 | mx4.mailpod16-cph3.g1i.one.com | AS51468 One.com A/S |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:10a:80bb:7965:9df:e7e2 | 3600s | — | AS51468 | One.com A/S | 2a02:2350:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Copenhagen |
| www | 46.30.213.55 2a02:2350:5:10a:80bb:7965:9df:e7e2 (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network bttbolig.dk: 46.30.213.55 2a02:2350:5:10a:80bb:7965:9df:e7e2 (AS51468) www.bttbolig.dk: 46.30.213.55 2a02:2350:5:10a:80bb:7965:9df:e7e2 (AS51468) |
| 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.mailpod16-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | 24689A1B29BE70163B6DCF262497B6EC… |
| SMTP _25._tcp.mx1.mailpod16-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | 2362DFAC1BB9F66402E0636BDEF478E5… |
| SMTP _25._tcp.mx2.mailpod16-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | 24689A1B29BE70163B6DCF262497B6EC… |
| SMTP _25._tcp.mx2.mailpod16-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | 2362DFAC1BB9F66402E0636BDEF478E5… |
| SMTP _25._tcp.mx3.mailpod16-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | 24689A1B29BE70163B6DCF262497B6EC… |
| SMTP _25._tcp.mx3.mailpod16-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | 2362DFAC1BB9F66402E0636BDEF478E5… |
| SMTP _25._tcp.mx4.mailpod16-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | 2362DFAC1BB9F66402E0636BDEF478E5… |
| SMTP _25._tcp.mx4.mailpod16-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | 24689A1B29BE70163B6DCF262497B6EC… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026090301 |
| 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 | 2021-01-07 |
| Expires | 2027-01-31 (103d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 10:32:17 | 920ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-10-05 03:42:39 | 812ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-30 02:56:20 | 546ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-25 12:05:24 | 573ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-04 13:09:29 shown | 646ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-30 04:57:27 | 1944ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-28 19:07:18 | 566ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-27 13:46:16 | 881ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-26 13:19:31 | 835ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-26 02:14:53 | 743ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-06 10:33:17 | 1244ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-04 22:59:50 | 755ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-01 11:08:08 | 1273ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-22 10:30:29 | 1041ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-22 08:00:39 | 1165ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-16 17:42:29 | 2326ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-16 17:39:09 | 5677ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-16 17:30:23 | 576ms | 2 NS 1 A 4 MX | 🔒 Secure |