| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 76.76.21.21 | 3600s | — | AS16509 | Amazon.com, Inc. | 76.76.21.0/24 | 🇺🇸 United States | Walnut |
| 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 | 2026090101 |
| 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 | |
|---|---|---|---|---|
| 2026-09-01 08:41:02 | 860ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-16 07:22:58 | 666ms | 1 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-07-12 21:00:09 | 745ms | 1 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-07-11 17:30:13 | 815ms | 1 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-07-08 09:56:00 | 572ms | 1 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-07-07 08:16:14 | 1081ms | 1 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-07-05 17:10:51 | 725ms | 1 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-07-04 15:29:20 | 763ms | 1 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-07-02 22:56:46 | 478ms | 1 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-22 14:22:56 | 1213ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-21 23:11:52 | 4010ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-21 15:03:22 | 2730ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-20 17:35:59 | 1011ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-19 20:16:46 | 2240ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-16 14:05:15 | 325ms | 0 NS 0 A 0 MX | ❓ Unknown | View |