| 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 | |
|---|---|---|---|---|
| 2026-08-07 21:24:29 | 617ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-03 13:19:50 | 534ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-23 10:26:35 | 810ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-23 03:33:19 | 1172ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-18 21:11:21 | 558ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-17 13:33:55 | 495ms | 2 NS 1 A 0 MX | 🔒 Secure | View |