| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 4.180.202.32 | 3600s | — | AS8075 | Microsoft Corporation | 4.160.0.0/11 | 🇳🇱 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 | 2026081801 |
| 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 | |
|---|---|---|---|---|
| 2026-08-19 02:43:21 | 4515ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-18 22:55:28 | 8468ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-29 17:59:58 | 752ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-21 05:33:00 | 605ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-17 17:55:50 | 1256ms | 2 NS 1 A 0 MX | 🔒 Secure | View |