guideline.dk is a .dk domain served by 2 nameservers (ns1.shellhost.dk, ns2.shellhost.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 193.200.90.229 is hosted by Christian Ebsen ApS (AS62121) in Denmark. Mail is handled by mail.guideline.dk. The zone is DNSSEC-signed but currently fails validation, 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 193.200.90.229 | — | web1.eushells.com | AS62121 | Christian Ebsen ApS | 193.200.90.0/23 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | mail.guideline.dk | 193.200.90.233 | mail1.eushells.com | AS62121 Christian Ebsen ApS |
| www | 193.200.90.229 (AS62121) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Check | Result |
|---|---|
| Validation Status | ⚠️ Bogus |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | broken trust chain resolving 'guideline.dk/A/IN': 127.0.0.1#53 |
| Field | Value |
|---|---|
| Serial | 2026033100 |
| Primary NS (MNAME) | ns1.shellhost.dk |
| Responsible (RNAME) | hostmaster@shellhost.dk |
| Refresh | 84400s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 22:56:00 | 418ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-24 20:44:28 | 1678ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-24 00:04:37 | 743ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-23 06:20:18 | 1079ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-22 04:53:25 | 1129ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-19 06:26:58 | 5586ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 10:07:25 shown | 1120ms | 2 NS 1 A 1 MX | ⚠️ Bogus |