| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 54.77.140.111 | 43200s | dynamicsignature.com | AS16509 | Amazon.com, Inc. | 54.64.0.0/12 | 🇮🇪 Ireland | Dublin |
| 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 | 2026080101 |
| 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 23:51:45 | 779ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-07 15:16:29 | 866ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-01 13:35:04 | 703ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-20 16:38:16 | 759ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-20 10:09:30 | 539ms | 2 NS 1 A 1 MX | ⚠️ Bogus | View |
| 2026-06-19 21:56:32 | 1646ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-17 11:18:37 | 714ms | 2 NS 1 A 0 MX | 🔒 Secure | View |
| 2026-06-17 11:13:01 | 546ms | 2 NS 1 A 0 MX | 🔒 Secure | View |