tui-travel.dk is a .dk domain served by 2 nameservers (ns01.brandshelter.com, ns02.brandshelter.net). It was registered on 22 March 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 5.22.145.121 is hosted by Amazon.com, Inc. (AS16509) in Germany. Mail is handled by .. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 5.22.145.121 | 600s | relay.mail-forwarder.io | AS16509 | Amazon.com, Inc. | 5.22.145.0/24 | 🇩🇪 Germany | — |
| 5.22.145.16 | 600s | relay.mail-forwarder.io | AS16509 | Amazon.com, Inc. | 5.22.145.0/24 | 🇩🇪 Germany | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a00:18e0:5:2:7577:4e4d:413b:f507 | 600s | relay.mail-forwarder.io | AS16509 | Amazon.com, Inc. | 2a00:18e0:5:0:0:0:0:0/48 | 🇩🇪 Germany | — |
| 2a00:18e0:5:3:dfe2:c743:85aa:61bc | 600s | relay.mail-forwarder.io | AS16509 | Amazon.com, Inc. | 2a00:18e0:5:0:0:0:0:0/48 | 🇩🇪 Germany | — |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (tui-travel.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.tui-travel.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 |
| www | 5.22.145.230 5.22.145.247 2a00:18e0:5:2:f015:6b46:7bb3:1c36 2a00:18e0:5:3:a356:6a4c:7d74:3f0b (AS16509) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
DNS lookups: 0/10 · 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 | 2026072104 |
| Primary NS (MNAME) | ns01.brandshelter.com |
| Responsible (RNAME) | tech@brandshelter.com |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | 1API GmbH |
| Registered | 2007-03-22 |
| Expires | 2027-03-31 (154d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-24 06:12:10 | 823ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-09 03:59:54 | 602ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-30 01:36:26 | 1482ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-25 00:24:05 | 960ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-08 00:49:24 | 2659ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-22 11:07:40 shown | 3039ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-27 20:14:41 | 1244ms | 3 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-23 20:00:53 | 1162ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-18 07:08:33 | 1088ms | 3 NS 2 A 0 MX | 🔓 Insecure |