| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 20.50.2.76 | 600s | — | AS8075 | Microsoft Corporation | 20.48.0.0/12 | 🇳🇱 The Netherlands | Amsterdam |
| 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 | 2026082801 |
| 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 | |
|---|---|---|---|---|
| 2026-08-29 02:29:45 | 962ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-14 14:02:31 | 709ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-29 17:07:57 | 2452ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-28 19:29:55 | 790ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-26 22:49:09 | 560ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-25 03:46:36 | 1890ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-23 05:47:30 | 540ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-17 23:09:37 | 515ms | 2 NS 1 A 0 MX | 🔒 Secure | View |