zbt.dk is a .dk domain served by 5 nameservers (ns1.gigahost.dk, ns2.gigahost.dk, ns3.gigahost.dk and 2 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.183.139.216 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by mx1.gigahost.dk, mx2.gigahost.dk and 1 more. The zone is not DNSSEC-signed, publishes a 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 46.183.139.216 | 3600s | web16.gigahost.dk | AS47292 | Sentia Denmark A/S | 46.183.138.0/23 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx1.gigahost.dk | 46.183.139.11 | mx1.gigahost.dk | AS47292 Sentia Denmark A/S |
| 10 | 3600s | mx2.gigahost.dk | 46.183.139.12 | mx2.gigahost.dk | AS47292 Sentia Denmark A/S |
| 10 | 3600s | mx3.gigahost.dk | 46.183.139.13 | mx3.gigahost.dk | AS47292 Sentia Denmark A/S |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 10 | 443 | autodiscover.gigahost.dk |
| TXT Record |
|---|
| spf2.0/pra |
| v=spf1 mx include:spf.gigahost.dk -all |
| Policy | Record (zbt.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx include:spf.gigahost.dk -all |
| Policy | Record (_dmarc.zbt.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; |
| www CNAME | zbt.dk (all on zbt.dk) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 2/10 · policy: -all
No problems found| 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 | 2026101501 |
| Primary NS (MNAME) | ns1.gigahost.dk |
| Responsible (RNAME) | hostmaster@zbt.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 09:30:53 shown | 1073ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-08 13:38:35 | 1157ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-01 10:32:42 | 2472ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-30 10:29:50 | 830ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-24 22:13:26 | 1071ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-17 08:13:02 | 1959ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-11 00:43:13 | 1020ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-04 00:20:08 | 925ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-27 14:59:24 | 991ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-20 09:38:01 | 9980ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-13 18:38:06 | 4289ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-07 05:18:55 | 1002ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-23 07:19:11 | 1175ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-16 14:11:17 | 1073ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-15 12:42:13 | 1409ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-03 20:11:55 | 6002ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-25 19:40:17 | 1032ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-19 22:37:45 | 2474ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-18 20:30:13 | 2668ms | 5 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-17 13:03:55 | 2567ms | 5 NS 1 A 3 MX | 🔓 Insecure |