| 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 |
| 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-denmark.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.tui-denmark.dk) |
|---|---|
| p=reject | v=DMARC1;p=reject;pct=100;rua=mailto:dmarcreports@charityworkersholidays.co.uk,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 | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2021031605 |
| 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 | |
|---|---|---|---|---|
| 2026-08-25 16:24:54 | 611ms | 2 NS 0 A 1 MX | 🔓 Insecure | View |
| 2026-06-29 02:21:29 | 638ms | 2 NS 0 A 1 MX | 🔓 Insecure | View |
| 2026-06-25 22:09:08 | 1372ms | 2 NS 0 A 1 MX | 🔓 Insecure | View |
| 2026-06-24 09:48:34 | 1170ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-21 06:40:50 | 630ms | 2 NS 0 A 1 MX | 🔓 Insecure | View |
| 2026-06-18 06:11:54 | 872ms | 2 NS 0 A 0 MX | 🔓 Insecure | View |