| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 139.177.177.15 | 600s | linode2.netmaster.dk | AS63949 | Akamai Connected Cloud | 139.177.176.0/20 | 🇩🇪 Germany | Frankfurt am Main |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026080301 |
| 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 | |
|---|---|---|---|---|
| 2026-08-26 21:56:26 | 766ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-06 11:20:16 | 836ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-05 19:29:57 | 936ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-01 05:24:47 | 473ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-27 22:14:06 | 671ms | 2 NS 1 A 4 MX | 🔒 Secure | View |
| 2026-06-20 02:04:20 | 620ms | 2 NS 1 A 4 MX | 🔒 Secure | View |
| 2026-06-17 10:23:14 | 723ms | 2 NS 1 A 4 MX | 🔒 Secure | View |