smartbook.dk is a .dk domain served by 2 nameservers (dns1.compusoft.dk, dns2.compusoft.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 80.166.12.143 is hosted by TDC Holding A/S (AS3292) in Denmark. The zone is not DNSSEC-signed, 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| dns1.compusoft.dk | 80.166.12.253 80.166.12.3 |
— dns1.compusoft.dk.compusoft.dk |
AS3292 TDC Holding A/S AS3292 TDC Holding A/S |
| dns2.compusoft.dk | 80.166.12.2 | dns1.compuasp.dk | AS3292 TDC Holding A/S |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 80.166.12.143 | 86400s | download.compusoft.hosting | AS3292 | TDC Holding A/S | 80.160.0.0/13 | 🇩🇰 Denmark | — |
| www CNAME | www.compusoft.dk (all on compusoft.dk) |
| www vs bare domain | Different networks smartbook.dk: 80.166.12.143 (AS3292) (all like this)www.smartbook.dk: 104.26.12.243 104.26.13.243 172.67.75.26 2606:4700:20::681a:cf3 (AS13335) |
| Wildcard | No |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 10 |
| Primary NS (MNAME) | dns1.compusoft.dk |
| Responsible (RNAME) | hostmaster@compusoft.dk |
| Refresh | 900s |
| Retry | 600s |
| Expire | 86400s |
| Minimum (neg-cache TTL) | 86400s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 04:27:21 shown | 413ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-10-01 08:22:20 | 383ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-09-25 15:44:06 | 458ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-25 06:09:42 | 505ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-17 14:35:31 | 4942ms | 2 NS 1 A 0 MX | 🔓 Insecure |