| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 45.133.74.72 | 3600s | 72.74.133.45.in-addr.arpa | AS58087 | Florian Kolb | 45.133.74.0/24 | 🇩🇪 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 | 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 15:49:17 | 580ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-13 18:25:46 | 4668ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-12 16:09:21 | 752ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-15 18:10:24 | 611ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-08 08:44:27 | 609ms | 2 NS 1 A 1 MX | 🔒 Secure | View |