| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 176.100.37.41 | 3600s | 41.37.100.176.in-addr.arpa | AS58087 | Florian Kolb | 176.100.36.0/23 | 🇩🇪 Germany | — |
| 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 | 2026082201 |
| 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 20:44:54 | 673ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-22 16:30:23 | 4139ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-23 08:54:37 | 746ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-27 10:20:22 | 583ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-26 02:37:58 | 5434ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-21 05:46:38 | 948ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-17 12:14:32 | 603ms | 2 NS 1 A 0 MX | 🔒 Secure | View |