bu.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 72.60.82.126 is hosted by Hostinger International Limited (AS47583) in Germany. Mail is handled by mx1.hostinger.com, mx2.hostinger.com. 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.simply.com | — | — | — |
| ns2.simply.com | — | — | — |
| ns3.simply.com | — | — | — |
| ns4.simply.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 72.60.82.126 | — | — | AS47583 | Hostinger International Limited | 72.60.0.0/15 | 🇩🇪 Germany | Frankfurt am Main |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 5 | — | mx1.hostinger.com | 172.65.182.103 | — | AS13335 Cloudflare, Inc. |
| 10 | — | mx2.hostinger.com | 172.65.182.103 | — | AS13335 Cloudflare, Inc. |
| TXT Record |
|---|
| v=spf1 include:_spf.mail.hostinger.com ~all |
| Policy | Record (bu.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.mail.hostinger.com ~all |
| Policy | Record (_dmarc.bu.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www | 72.60.82.126 (AS47583) (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 |
DNS lookups: 3/10 · 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 | 2026021706 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 04:02:59 | 566ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-01 13:43:13 | 1423ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-23 12:10:34 | 513ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-28 06:40:00 | 718ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-24 14:16:58 | 1715ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-16 17:48:05 | 1566ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-16 17:31:24 | 3725ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-16 17:31:05 shown | 2453ms | 4 NS 1 A 2 MX | 🔒 Secure |