| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns01.brandshelter.com | 2a04:2b00:14cc::15 | ns15.i.centralnic-dns.com | AS1921 ipcom GmbH |
| ns02.brandshelter.net | 2a04:2b00:14dd::16 | ns16.j.centralnic-dns.com | AS207021 ipcom GmbH |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 5.9.53.27 | 3600s | static.27.53.9.5.clients.your-server.de | AS24940 | Hetzner Online GmbH | 5.9.0.0/16 | 🇩🇪 Germany | Falkenstein |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (tui-cruises.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.tui-cruises.dk) |
|---|---|
| p=reject | v=DMARC1;p=reject ;pct=100;rua=mailto:2256e681@inbox.ondmarc.com;ruf=mailto:2256e681@inbox.ondmarc.com |
| Flags | Tag | Value |
|---|---|---|
| 0 | iodef | mailto:domain@tui.com |
| 0 | issue | digicert.com |
| 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 | 2026072101 |
| Primary NS (MNAME) | ns01.brandshelter.com |
| Responsible (RNAME) | tech@brandshelter.com |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 300s |
| Scanned At | Duration | Records | DNSSEC | |
|---|---|---|---|---|
| 2026-09-01 04:30:38 | 2788ms | 2 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-07-21 13:33:41 | 824ms | 2 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-06-26 15:18:48 | 1644ms | 3 NS 2 A 0 MX | 🔓 Insecure | View |
| 2026-06-21 07:24:11 | 927ms | 3 NS 2 A 0 MX | 🔓 Insecure | View |
| 2026-06-18 06:09:50 | 902ms | 3 NS 2 A 0 MX | 🔓 Insecure | View |