holidaytaxfree.dk is a .dk domain served by 2 nameservers (a.portsdns.se, b.portsdns.net). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 88.131.17.178 is hosted by Tele2 SWIPnet (AS1257) in Sweden. Mail is handled by mxa-00a05702.gslb.pphosted.com, mxb-00a05702.gslb.pphosted.com. The zone is not DNSSEC-signed, has no 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 |
|---|---|---|---|---|---|---|---|
| 88.131.17.178 | 3600s | — | AS1257 | Tele2 SWIPnet | 88.131.0.0/16 | 🇸🇪 Sweden | Kista |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 3600s | mxa-00a05702.gslb.pphosted.com | 66.159.244.35 | mx07-00a05702.pphosted.com | AS52129 Proofpoint, Inc. |
| 0 | 3600s | mxb-00a05702.gslb.pphosted.com | 66.159.246.129 | mx08-00a05702.pphosted.com | AS52129 Proofpoint, Inc. |
| TXT Record |
|---|
| MS=ms74356545 |
| v=spf1 include:spf.protection.outlook.com include:carmamail.com include:spf-00a05702.pphosted.com ~all |
| Policy | Record (holidaytaxfree.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:spf.protection.outlook.com include:carmamail.com include:spf-00a05702.pphosted.com ~all |
| www | 88.131.17.178 (AS1257) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| s1 | s1.domainkey.u14206677.wl178.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u14206677.wl178.sendgrid.net | RSA · ~1024 bit below 2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 3/10 · 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 | 2026052700 |
| Primary NS (MNAME) | a.portsdns.se |
| Responsible (RNAME) | registry@ports.net |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1814400s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 21:02:55 shown | 1440ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-27 07:01:58 | 1080ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-07-03 00:41:12 | 1328ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-27 16:39:14 | 5652ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-17 13:46:32 | 3421ms | 2 NS 1 A 2 MX | 🔓 Insecure |