| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 37.28.139.218 | 43200s | — | AS31027 | GlobalConnect A/S | 37.28.136.0/21 | 🇩🇰 Denmark | Søndersø |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 37.28.139.218 |
| 🔶 Autoconfig | 37.28.139.218 |
| TXT Record |
|---|
| v=spf1 include:_include.mxhotel.dk -all |
| Policy | Record (fruretro.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_include.mxhotel.dk -all |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026081401 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Scanned At | Duration | Records | DNSSEC | |
|---|---|---|---|---|
| 2026-08-28 03:46:34 | 2654ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-14 14:11:19 | 833ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-16 10:42:53 | 1938ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-27 12:55:25 | 672ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-26 13:32:59 | 635ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-17 10:01:04 | 1034ms | 2 NS 1 A 0 MX | 🔒 Secure | View |