btn.dk is a .dk domain served by 5 nameservers (ns1pri.webhosting.dk, ns2.mywebtonet.com, ns2.webhosting.dk and 2 more). It was registered on 22 December 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 157.250.163.42 is hosted by Cibicom A/S (AS3342) in Denmark. Mail is handled by webhotel5.webhosting.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 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 |
|---|---|---|---|---|---|---|---|
| 157.250.163.42 | 603s | php74serv3.webhosting.dk | AS3342 | Cibicom A/S | 157.250.160.0/20 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 603s | webhotel5.webhosting.dk | 157.250.160.25 | webhotel5.webhosting.dk | AS3342 Cibicom A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | php74serv3.webhosting.dk → 157.250.163.42 |
| 🔶 Autoconfig | php74serv3.webhosting.dk → 157.250.163.42 |
| TXT Record |
|---|
| v=spf1 include:spf.webhosting.dk ~all |
| Policy | Record (btn.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:spf.webhosting.dk ~all |
| Policy | Record (_dmarc.btn.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1;p=none; |
| www CNAME | php74serv3.webhosting.dk (all on webhosting.dk) → 157.250.163.42 (AS3342) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 1/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.btn.dk | php74serv3.webhosting.dk |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.webhotel5.webhosting.dk | DANE-EE · SPKI · SHA-256 | FA4EFC305AA17A4FEEE8B29B2DAA8847… |
| SMTP _25._tcp.webhotel5.webhosting.dk | DANE-TA · SPKI · SHA-256 | FA4EFC305AA17A4FEEE8B29B2DAA8847… |
| HTTPS _443._tcp.btn.dk | DANE-EE · SPKI · SHA-256 | 9AE39E227D7AF890EB24CF62E3BEF97D… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2004122306 |
| Primary NS (MNAME) | ns1pri.webhosting.dk |
| Responsible (RNAME) | hostmaster@webhosting.dk |
| Refresh | 21600s |
| Retry | 3600s |
| Expire | 14515200s |
| Minimum (neg-cache TTL) | 603s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2004-12-22 |
| Expires | 2026-12-31 (75d) |
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 |
|---|---|---|---|
| 2026-09-18 08:59:26 | 880ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-13 14:32:35 shown | 861ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-23 14:59:00 | 1096ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-29 07:19:25 | 798ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 05:55:13 | 1020ms | 5 NS 1 A 1 MX | ⚠️ Bogus |
| 2026-06-22 22:37:03 | 1169ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 11:19:46 | 858ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-19 19:50:40 | 868ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 17:51:11 | 3534ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 17:34:41 | 1807ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 17:30:14 | 765ms | 5 NS 1 A 1 MX | 🔒 Secure |