bisu.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 9 May 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.107.234 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx.simply.com. The zone is DNSSEC-signed and validates, has no 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.simply.com | — | — | — |
| ns2.simply.com | — | — | — |
| ns3.simply.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 94.231.107.234 | — | linux36.unoeuro.com | AS48854 | team.blue Denmark A/S | 94.231.96.0/20 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | mx.simply.com | 94.231.106.20 | mx.simply.com | AS48854 team.blue Denmark A/S |
| www | 94.231.107.234 (AS48854) (address records, no CNAME) |
| 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 | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | 97A3BA009F39C761BFFB6574340E8138… |
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | A9D603AF4D7ED6B9246B4B68500CD6F2… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2025042300 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2006-05-09 |
| Expires | 2027-05-31 (225d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 23:53:51 | 1583ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-27 23:17:31 | 463ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-02 01:14:52 | 572ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 19:53:46 | 536ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 20:20:13 | 1006ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 16:14:04 | 959ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 08:00:29 | 601ms | 3 NS 1 A 1 MX | ⚠️ Bogus |
| 2026-06-20 12:35:02 | 623ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 14:41:42 shown | 543ms | 3 NS 1 A 1 MX | 🔒 Secure |