| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 87.59.144.42 | 43200s | 87-59-144-42-dynamic.dk.customer.tdc.net | AS3292 | TDC Holding A/S | 87.59.0.0/16 | 🇩🇰 Denmark | Lejre |
| 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 | 2026081101 |
| 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 12:39:45 | 594ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-25 03:08:28 | 496ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-11 17:48:50 | 628ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-18 12:04:20 | 8406ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-17 09:44:27 | 617ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-20 03:07:08 | 1144ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-17 09:41:16 | 752ms | 2 NS 1 A 0 MX | 🔒 Secure | View |