| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 51.140.210.99 | 3600s | — | AS8075 | Microsoft Corporation | 51.140.0.0/14 | 🇬🇧 United Kingdom | Cardiff |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mxcluster1.one.com | — | — | — |
| 10 | 3600s | mxcluster2.one.com | — | — | — |
| 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 | 1 |
| Primary NS (MNAME) | ns1-09.azure-dns.com |
| Responsible (RNAME) | azuredns-hostmaster@microsoft.com |
| Refresh | 3600s |
| Retry | 300s |
| Expire | 2419200s |
| Minimum (neg-cache TTL) | 300s |
| Scanned At | Duration | Records | DNSSEC | |
|---|---|---|---|---|
| 2026-08-26 13:15:13 | 624ms | 4 NS 1 A 2 MX | 🔓 Insecure | View |
| 2026-07-02 13:16:28 | 857ms | 4 NS 1 A 2 MX | 🔓 Insecure | View |
| 2026-06-21 00:12:32 | 577ms | 4 NS 1 A 2 MX | 🔓 Insecure | View |
| 2026-06-20 04:39:05 | 1551ms | 4 NS 1 A 2 MX | 🔓 Insecure | View |
| 2026-06-18 08:00:17 | 725ms | 4 NS 1 A 2 MX | 🔓 Insecure | View |