| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 139.162.145.17 | 3600s | srv1.jco.cloud | AS63949 | Akamai Connected Cloud | 139.162.0.0/16 | 🇩🇪 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 | 2026081201 |
| 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 08:26:59 | 454ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-25 12:16:03 | 1170ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-12 07:14:49 | 1907ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-29 14:30:06 | 4592ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-19 05:12:54 | 630ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-15 16:38:06 | 2470ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-26 15:27:11 | 1070ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-20 08:16:01 | 380ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-20 07:55:27 | 787ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-16 20:22:55 | 269ms | 2 NS 1 A 0 MX | 🔒 Secure | View |
| 2026-06-16 20:20:37 | 610ms | 2 NS 1 A 0 MX | 🔒 Secure | View |