| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 172.104.229.89 | 3600s | 172-104-229-89.ip.linodeusercontent.com | AS63949 | Akamai Connected Cloud | 172.104.224.0/19 | 🇩🇪 Germany | Frankfurt am Main |
| 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 | 2026082501 |
| 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 | |
|---|---|---|---|---|
| 2026-08-27 05:39:34 | 682ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-27 01:40:18 | 417ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-26 21:33:19 | 641ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-25 10:32:55 | 795ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-24 08:05:23 | 2229ms | 2 NS 1 A 1 MX | ⚠️ Bogus | View |
| 2026-06-23 14:21:20 | 1009ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-17 23:59:24 | 468ms | 2 NS 1 A 0 MX | 🔒 Secure | View |